Fuel and Emissions Systems Symptom Troubleshooting - Engine will not start, engine starts but stalls immediately, or engine is hard to start
Engine will not start, engine starts but stalls immediately, or engine is hard to start
Special Tools Required
Vacuum Pump/Gauge, 0?30 inHg Snap-on YA4000A or equivalent, commercially available
NOTE:
Before beginning this troubleshooting, ask a customer about diagnostic interview.
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When the symptom cannot be duplicated, you can do the troubleshooting using the on-board snapshot information in this procedure. Refer to the diagnostic interview (date, place) and the present total mileage, and compare the total mileage which is estimated from the interview when a failure occured and the parameter (total mileage) in the on-board snapshot information. Make sure the date when the failure occured corresponds with the date on which the on-board snapshot information was recorded. If it doesn't, the on-board snapshot information cannot be used in this troubleshooting.
Before beginning this troubleshooting:
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Make sure the battery is fully charged.
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Make sure the fuel tank is at least 1/4 full.
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Make sure the engine oil level is correct.
After the troubleshooting, reset the PCM with the HDS to certainly erase the on-board snapshot information recorded on the PCM.
1.
DTC check:

DTC check
?1.
Press the engine start/stop button to select the ON mode.

?2.
Check for Pending or Confirmed DTCs with the HDS.
DTC Description
Confirmed DTC
Pending DTC
Freeze Frame
       

Are any Pending or Confirmed DTCs indicated?

     
YES
     
     
     
Go to the indicated DTC's troubleshooting.?
     
NO
     
     
     
Go to step 2.
NOTE: If the HDS does not communicate with the vehicle, go to the PCM power and ground circuit troubleshooting.
2.
Immobilizer system check:

Immobilizer system check
?1.
Check the status log of the immobilizer system.
NOTE: When a status log count is found, it means the immobilizer system has kept the engine from starting in the past.The number of status log count shows how often the system has kept the engine from starting in the past. If the immobilizer system has no status log count, the system is normal.

Was the status log count found?

     
YES
     
     
     
     
NO
     
     
     
Go to step 3.
3.
Problem verification (snapshot sampling):

Problem verification (snapshot sampling)
?1.
Set the HDS to record a HIGH-SPEED SNAPSHOT of following parameters for 30 seconds.
IMMOBILIZER
ENGINE SPEED
BATTERY
ECT SENSOR 1
MAP SENSOR
MAF SENSOR
CMP NO PULSE
CMP NOISE
CKP NO PULSE
CKP NOISE
EGR LIFT
EGR valve position sensor (EGR VLS)
VTEC PRES SW

?2.
Begin the snapshot, then try to start the engine.

Is the engine hard to start?

     
YES
     
     
     
Go to step 6 (diagnosis by parameter troubleshooting).
     
NO
     
     
     
Go to step 4.
4.
On-board snapshot check (Engine will not start):

On-board snapshot check (Engine will not start)
?1.
Check record of Hard to Start Engine in the on-board snapshot with the HDS.


Is the Hard to Start Engine in the on-board snapshot recorded?

     
YES
     
     
     
Go to step 6 (diagnosis by parameter troubleshooting).
     
NO
     
     
     
Go to step 5.
5.
On-board snapshot check (Engine Stall 2):

On-board snapshot check (Engine Stall 2)
NOTE: When Hard to Start on-board snapshot data was not recorded, use the Engine Stall 2 on-board snapshot data and check the cause of the failure.

?1.
Check record of Engine Stall 2 in the on-board snapshot with the HDS.


Is an Engine Stall 2 on-board snapshot recorded?

     
YES
     
     
     
Go to step 19 (diagnosis by parameter (ST FUEL TRIM (B1, B2))).
     
NO
     
     
     
Go to step 21 (fuel system troubleshooting).
NOTE: In case of the following conditions, the on-board snapshot will not be recorded when engine stalls.
The engine start/stop button is pressed to select the OFF mode, after starting the engine.
Vehicle condition not in the on-board snapshot recoding zone of Hard to start engine (see the gray zone of following graph).
Low or dead battery
Replacing the battery

ECT SENSOR 1 (°F (°C ))
-40
(-40)
-22
(-30)
-13
(-25)
-4
(-20)
5
(-15)
14
(-10)
194
(90)
Start time (sec)
6.0
6.0
3.0
2.25
1.5
1.5
1.5

6.
On-board snapshot or snapshot check (IMMOBILIZER):

On-board snapshot or snapshot check (IMMOBILIZER)
NOTE: Use the on-board snapshot in the case of an intermittent failure, or use the snapshot in the case of a reproducible failure.

?1.
Select the Hard to Start Engine in the on-board snapshot or snapshot with the HDS.


?2.
Select the IMMOBILIZER and ENGINE SPEED in the configuration list.
Compare the snapshot parameters observed while the engine was cranking, to those in the chart below, to determine the problem.

Pattern
Symptom (Diagnosis by parameter)
Additional remarks
Pattern 1
IMMOBILIZER inhibit

IMMOBILIZER inhibit
When IMMOBILIZER indicates “BAN” during cranking or after start, the fuel pump is stopped by IMMOBILIZER inhibit.
No failure in the engine
Pattern 2
IMMOBILIZER permit Normal

IMMOBILIZER permit Normal

IMMOBILIZER is normal when IMMOBILIZER indicates “RUN” when cranking or after start.

Which pattern is indicated?

     
Pattern 1
     
     
     
The immobilizer system has a failure. Go to the keyless access (immobilizer) System Check.
     
Pattern 2
     
     
     
The immobilizer system is OK. Go to step 7 (diagnosis by parameter (ENGINE SPEED)).
7.
On-board snapshot or snapshot check (ENGINE SPEED):

On-board snapshot or snapshot check (ENGINE SPEED)
NOTE: Use the on-board snapshot in the case of an intermittent failure, or use the snapshot in the case of a reproducible failure.

?1.
Select the Hard to Start Engine in the on-board snapshot or snapshot with the HDS.


?2.
Select the ENGINE SPEED pattern chart in the configuration list.
Check the recorded snapshot parameters while the engine is cranking, then compare the pattern from the chart, and determine the problem.

Pattern
Symptom (Diagnosis by parameter)
Additional remarks
Pattern 1
ENGINE SPEED when cranking is normal

  
Pattern 2
ENGINE SPEED when cranking is low
When ENGINE SPEED during cranking is low, weak battery or increased engine friction can be considered.

Which pattern is indicated?

     
Pattern 1
     
     
     
The engine cranking speed is OK. Go to step 8 (diagnosis by parameter (BATTERY)).
     
Pattern 2
     
     
     
Diagnostic procedure:
1.
Test the battery.
2.
Check the battery cables and the connections.
3.
Check the starter.
4.
Check for engine friction.
8.
On-board snapshot or snapshot check (BATTERY):

On-board snapshot or snapshot check (BATTERY)
NOTE: Use the on-board snapshot in the case of an intermittent failure, or use the snapshot in the case of a reproducible failure.

?1.
Select the Hard to Start Engine in the on-board snapshot or snapshot with the HDS.


?2.
Select the BATTERY and ENGINE SPEED in the configuration list.
Check the recorded snapshot parameters while the engine is cranking, then compare the BATTERY pattern from the chart, and determine the problem.

Pattern
Symptom (Diagnosis by parameter)
Additional remarks
Pattern 1
BATTERY voltage low when cranking
When BATTERY voltage during cranking is too low, there is a possibility that PCM and/or the engine will not start.
The PCM and other system control units require 7.0 V or more to start.
Pattern 2
BATTERY voltage normal when cranking
To start the engine, 7.0 V or more is needed

Which pattern is indicated?

     
Pattern 1
     
     
     
Diagnostic procedure:
1.
Test the battery.
2.
Check the battery cables and the connections.
     
Pattern 2
     
     
     
The battery is OK. Go to step 9 (diagnosis by parameter (ECT SENSOR 1)).
9.
On-board snapshot or snapshot check (ECT SENSOR 1):

On-board snapshot or snapshot check (ECT SENSOR 1)
NOTE: Use the on-board snapshot in the case of an intermittent failure, or use the snapshot in the case of a reproducible failure.

?1.
Select the Hard to Start Engine in the on-board snapshot or snapshot with the HDS.


?2.
Select the ECT SENSOR 1 and ENGINE SPEED in the configuration list.
Check the recorded snapshot parameters while the engine is cranking, then compare the ECT SENSOR 1 pattern from the chart, and determine the problem.

Pattern
Symptom (Diagnosis by parameter)
Additional remarks
Pattern 1
ECT SENSOR 1 high when cranking
When ECT SENSOR 1 indicates about 176 °F (80 °C) or more when the engine is cold (engine temp low), ECT sensor 1 may be stuck high. ECT compensation is not applied after the engine is warmed up, it is not necessary to check ECT sensor 1 (not a faulty part).
Pattern 2
ECT SENSOR 1 normal when cranking
If actual engine temp is nearly the same as the temp detected by ECT sensor 1 when cranking, ECT sensor 1 is normal.

Which pattern is indicated?

     
Pattern 1
     
     
     
Check for a short in ECT sensor 1 circuit and a failure in ECT sensor 1.
     
Pattern 2
     
     
     
ECT sensor 1 is OK. Go to step 10 (diagnosis by parameter (MAP SENSOR)).
10.
On-board snapshot or snapshot check (MAP SENSOR):

On-board snapshot or snapshot check (MAP SENSOR)
NOTE: Use the on-board snapshot in the case of an intermittent failure, or use the snapshot in the case of a reproducible failure.

?1.
Select the Hard to Start Engine in the on-board snapshot or snapshot with the HDS.


?2.
Select the MAP SENSOR and ENGINE SPEED in the configuration list.
Check the recorded snapshot parameters while the engine is cranking, then compare the MAP SENSOR pattern to the pattern from the chart below, and determine the problem.

Pattern
Symptom (Diagnosis by parameter)
Additional remarks
Pattern 1
MAP SENSOR detects no change of pressure when cranking
When MAP SENSOR detects no change of pressure when cranking, the pressure measurement port may be clogged. The PCM decides basic duration time of fuel injection from engine speed and MAP sensor signal when crancking.
Pattern 2
Normal when MAP SENSOR detects vacuum when cranking
When MAP SENSOR detects vacuum while cranking, the condition is normal and the MAP sensor pressure port is clear.

Which pattern is indicated?

     
Pattern 1
     
     
     
Check the pressure measurement port of the MAP sensor for clogging, foreign objects, etc.
     
Pattern 2
     
     
     
The MAP sensor is OK. Go to step 11 (diagnosis by parameter (MAF SENSOR)).
11.
On-board snapshot or snapshot check (MAF SENSOR):

On-board snapshot or snapshot check (MAF SENSOR)
NOTE: Use the on-board snapshot in the case of an intermittent failure, or use the snapshot in the case of a reproducible failure.

?1.
Select the Hard to Start Engine in the on-board snapshot or snapshot with the HDS.

?2.
Select the MAF SENSOR and ENGINE SPEED in the configuration list.
Check the recorded snapshot or on-board snapshot parameters while the engine is cranking, then compare the MAF SENSOR pattern from the chart, and determine the problem.

Pattern
Symptom (Diagnosis by parameter)
Additional remarks
Pattern 1
Poor connection of MAF SENSOR
Complete combustion stall: When MAF SENSOR indicates “0” 1?2 sec before ENGINE SPEED becomes 0 rpm, or when “0” is shown like noise, there may be a poor connection at the MAF SENSOR connector.
Pattern 2
MAF SENSOR output incorrect
When MAF SENSOR shows “0” when cranking or after start, clogging in MAF SENSOR's measurement port may be contaminated with debris or there may be a poor connection as its connector.
Pattern 3
MAF SENSOR Normal
When MAF SENSOR output compares with ENGINE SPEED when cranking or after starting, MAF SENSOR is normal.

Which pattern is indicated?

     
Pattern 1 and 2
     
     
     
Check for loose terminals or a poor connection at the MAF SENSOR.
     
Pattern 3
     
     
     
The MAF sensor/IAT sensor is OK. Go to step 12 (diagnosis by parameter (CMP NO PULSE)).
12.
On-board snapshot or snapshot check (CMP NO PULSE):

On-board snapshot or snapshot check (CMP NO PULSE)
NOTE: Use the on-board snapshot in the case of an intermittent failure, or use the snapshot in the case of a reproducible failure.

?1.
Select the Hard to Start Engine in the on-board snapshot or snapshot with the HDS.


?2.
Select the CMP NO PULSE and ENGINE SPEED in the configuration list.
Check the recorded snapshot parameters while the engine is cranking, then compare the CMP NO PULSE pattern from the chart, and determine the problem.

Pattern
Symptom (Diagnosis by parameter)
Additional remarks
Pattern 1
CMP NO PULSE count increases when cranking
When CMP NO PULSE count increase when cranking, no CMP pulse is received. If the CMP pulse is not received, the PCM cannot detect the cylinder to be ignited and the engine is unable to start.
Pattern 2
The CMP NO PULSE indicates the pulse is normal
It is normal when CMP NO PULSE count does not increase.

Which pattern is indicated?

     
Pattern 1
     
     
     
Do the troubleshooting procedure for DTC P0365. If the CMP NO PULSE count reaches the malfunction threshold, DTC P0365 will set. Check for poor connections and loose terminals at the CMP sensor.
     
Pattern 2
     
     
     
Go to step 13 (diagnosis by parameter (CMP NOISE)).
13.
On-board snapshot or snapshot check (CMP NOISE):

On-board snapshot or snapshot check (CMP NOISE)
NOTE: Use the on-board snapshot in the case of an intermittent failure, or use the snapshot in the case of a reproducible failure.

?1.
Select the Hard to Start Engine in the on-board snapshot or snapshot with the HDS.


?2.
Select the CMP NOISE and ENGINE SPEED in the configuration list.
Check the recorded snapshot parameters while the engine is cranking, then compare the CMP NOISE pattern from the chart, and determine the problem.

Pattern
Symptom (Diagnosis by parameter)
Additional remarks
Pattern 1
CMP NOISE count increases when cranking
When CMP NOISE count increases when cranking, there is noise in the CMP signal. When CMP signal has noise, the PCM cannot detect the cylinder to be ignited and the engine is unable to start.
Pattern 2
The CMP NOISE indicates the pulse is normal
It is normal when CMP NOISE count does not increase when cranking.

Which pattern is indicated?

     
Pattern 1
     
     
     
Do the troubleshooting procedure for DTC P0369. If the CMP NOISE count reaches the malfunction threshold, DTC P0369 will set. Check for poor connections and loose terminals at the CMP sensor.
     
Pattern 2
     
     
     
The CMP sensor is OK. Go to step 14 (diagnosis by parameter (CKP NO PULSE)).
14.
On-board snapshot or snapshot check (CKP NO PULSE):

On-board snapshot or snapshot check (CKP NO PULSE)
NOTE: Use the on-board snapshot in the case of an intermittent failure, or use the snapshot in the case of a reproducible failure.

?1.
Select the Hard to Start Engine in the on-board snapshot or snapshot with the HDS.


?2.
Select the CKP NO PULSE and ENGINE SPEED in the configuration list.
Check the recorded snapshot parameters while the engine is cranking, then compare the CKP NO PULSE pattern from the chart, and determine the problem.

Pattern
Symptom (Diagnosis by parameter)
Additional remarks
Pattern 1
CKP NO PULSE count goes up when cranking
When the CKP NO PULSE count increases when cranking, the PCM is not receiving the correct CKP pulse.
Pattern 2
The CKP NO PULSE indicates the pulse is normal
It is normal when the CKP NO PULSE count does not increase.

Which pattern is indicated?

     
Pattern 1
     
     
     
Do the troubleshooting procedure for DTC P0335. If the CKP NO PULSE count reaches the malfunction threshold, DTC P0335 will set. Check for poor connections and loose terminals at the CKP sensor.
     
Pattern 2
     
     
     
Go to step 15 (diagnosis by parameter (CKP NOISE)).
15.
On-board snapshot or snapshot check (CKP NOISE):

On-board snapshot or snapshot check (CKP NOISE)
NOTE: Use the on-board snapshot in the case of an intermittent failure, or use the snapshot in the case of a reproducible failure.

?1.
Select the Hard to Start Engine in the on-board snapshot or snapshot with the HDS.


?2.
Select the CKP NOISE and ENGINE SPEED in the configuration list.
Check the recorded snapshot parameters while the engine is cranking, then compare the CKP NOISE pattern from the chart, and determine the problem.

Pattern
Symptom (Diagnosis by parameter)
Additional remarks
Pattern 1
CKP NOISE count goes up when cranking
When the CKP NOISE count increases when cranking, the PCM is not receiving the correct CKP pulse.
Pattern 2
Normal when CKP NOISE count does not go up when cranking
It is normal when CKP NOISE count does not increase when cranking.

Which pattern is indicated?

     
Pattern 1
     
     
     
Do the troubleshooting procedure for DTC P0339. If the CKP NOISE count reaches the malfunction threshold, DTC P0339 will set. Check for poor connections and loose terminals at the CKP sensor, and also check for aftermarket accessories.
     
Pattern 2 (Reproducible failure)
     
     
     
The CKP sensor is OK. Go to step 16 (diagnosis by parameter (EGR valve position sensor (EGR VLS))).
     
Pattern 2 (Intermittent failure)
     
     
     
The CKP sensor is OK. Go to step 18 (diagnosis by parameter (Engine Stall 2)).
16.
On-board snapshot or snapshot check (EGR valve position sensor (EGR VLS)):

On-board snapshot or snapshot check (EGR valve position sensor (EGR VLS))
?1.
Select the Hard to Start Engine in the on-board snapshot or snapshot with the HDS.

?2.
Select the EGR valve position sensor (EGR VLS) and ENGINE SPEED in the configuration list.
Check the recorded snapshot or on-board snapshot parameters while the engine is cranking, then compare the EGR valve position sensor (EGR VLS) pattern from the chart, and determine the problem.

Pattern
Symptom (Diagnosis by parameter)
Additional remarks
Pattern 1
EGR valve position sensor (EGR VLS) is 1.3 V or more
When EGR valve position sensor (EGR VLS) voltage during cranking is about 1.3 V or more, the engine start time is longer than normal condition
Pattern 2
EGR valve position sensor (EGR VLS) indicates the EGR is normal
EGR valve position sensor (EGR VLS) voltage during cranking is less than 1.3 V, the EGR valve position sensor is normal

Which pattern is indicated?

     
Pattern 1
     
     
     
Loosen the EGR valve mounting bolts, then install a metal plate between the EGR valve and the engine to shut out the EGR port. Recheck the engine start time. If the engine start time is normal, there is a failure in the EGR valve.
     
Pattern 2 (Reproducible failure)
     
     
     
The EGR valve is OK. Go to step 17 (diagnosis by parameter (VTEC PRES SW in the on-board snapshot)).
     
Pattern 2 (Intermittent failure)
     
     
     
The EGR valve is OK. Go to step 18 (diagnosis by parameter (Engine Stall 2)).
17.
Snapshot check (VTEC PRES SW):

Snapshot check (VTEC PRES SW)
?1.
Check the parameter(s) below with the HDS.
Signal
Threshold
Current conditions
Values
Unit
Values
Unit
VTEC PRES SW B1
ON
      
VTEC PRES SW B2
ON
      

Do the current condition(s) match the threshold?

     
YES
     
     
     
     
NO
     
     
     
The rocker arm oil pressure switches are OK. Go to step 21 (Fuel system troubleshooting)
18.
On-board snapshot check (Engine Stall 2):

On-board snapshot check (Engine Stall 2)
?1.
Check for a record of Engine Stall 2 in the on-board snapshot with the HDS.


Is Engine Stall 2 as on-board snapshot recorded?

     
YES
     
     
     
Go to step 19 (diagnosis by parameter (ST FUEL TRIM (B1, B2))).
     
NO
     
     
     
Go to step 21 (fuel system troubleshooting).
19.
On-board snapshot check (ST FUEL TRIM (B1, B2)):

On-board snapshot check (ST FUEL TRIM (B1, B2))
?1.
Check for a record of Engine Stall 2 in the on-board snapshot with the HDS.


?2.
Select the ST FUEL TRIM (B1, B2) and ENGINE SPEED in the configuration list.
Check the recorded snapshot parameters at the time of engine stalls, then compare the ST FUEL TRIM (B1, B2) pattern from the chart, and determine the problem.

Pattern
Symptom (Diagnosis by parameter)
Additional remarks
Pattern 1
Engine stalls while ST FUEL TRIM (B1, B2) value increasing
If the engine stalls while ST FUEL TRIM (B1, B2) value is increasing, a failure may exist in the fuel system.
Pattern 2
Normal when the engine stalls when ST FUEL TRIM (B1, B2) is around 1.0 (center value)
The fuel system is normal when the engine stalls with ST FUEL TRIM (B1, B2) around 1.0 (center value).

Which pattern is indicated?

     
Pattern 1
     
     
     
Diagnostic procedure:
1.
Check the fuel pump operation sound.
2.
Go to the fuel pressure test.
3.
Go to DTC P0627 for the fuel pump circuit troubleshooting.
4.
Test PGM-FI main relay 1.
5.
Test PGM-FI main relay 2.
6.
Check for the following fuses:
No. A15 (15 A) fuse (in the under-hood fuse/relay box)
No. B9 (20 A) fuse (in the under-dash fuse/relay box)
     
Pattern 2
     
     
     
Go to step 20 (diagnosis by parameter (MISFIRE)).
20.
On-board snapshot check (MISFIRE):

On-board snapshot check (MISFIRE)
?1.
Check for a record of Engine Stall 2 in the on-board snapshot with the HDS.


?2.
Select the MISFIRE and ENGINE SPEED in the configuration list.
Check the recorded snapshot parameters at the time of the engine stalls, then compare those snapshots to the MISFIRE pattern from the chart, and determine the problem.

Pattern
Symptom (Diagnosis by parameter)
Additional remarks
Pattern 1
Engine stalls after MISFIRE counts increase
If the engine stalls after MISFIRE count increases, the engine stall may be caused by misfire. Also the misfire may be caused by a loss of compression, faulty ignition system, faulty fuel system, etc.
Pattern 2
Normal when engine stalls with MISFIRE count remaining constant
If the MISFIRE count remains steady when the engine stalls, the stall was not caused by a misfire.

Which pattern is indicated?

     
Pattern 1
     
     
     
Diagnostic procedure:
1.
If misfire counts go up without storing misfire DTC P0300?P0306, go to DTC P0300?P0306 troubleshooting.
2.
If the misfire count reaches the malfunction threshold, DTC P0300?P0306 is stored. Go to the DTC P0300?P0306 troubleshooting.
     
Pattern 2
     
     
     
Go to step 21 (fuel system troubleshooting).
21.
Fuel pressure check:

Fuel pressure check
?1.
Do the fuel pressure test.

Is the fuel pressure OK?

     
YES
     
     
     
Go to step 22 (ignition system troubleshooting).
     
NO
     
     
     
22.
Spark plug visual check:

Spark plug visual check
?1.
Press the engine start/stop button to select the OFF mode.

?2.
Remove the spark plugs.

?3.
Check the condition of the spark plug electrodes.
NOTE: Make sure the spark plugs are the correct part number for the vehicle. If the plugs are aftermarket or they are not the correct part number, replace all of the plugs and retest.

Is the electrode damage or wet?

     
YES (wet)
     
     
     
Check the following conditions. If those conditions do not apply, go to step 23.
In very cold conditions, multiple very short trips can cause the spark plug to foul. If this is the case, drive the vehicle a longer distance and recheck.
Incorrect or poor quality fuel can cause a wet spark plug. Replace the fuel and recheck.
     
YES (damaged)
     
     
     
Replace the damaged spark plugs, determine the cause of the spark plug damage.
     
NO
     
     
     
Go to step 23.
23.
Determine possible failure area (ignition system, others):

Determine possible failure area (ignition system, others)
?1.
Select ALL INJECTORS in the INSPECTION MENU with the HDS, and stop fuel injection operation.

  

?2.
Fit a spark plug to the ignition coil and ground it to the engine.

?3.
Crank the engine and watch for spark at the spark plug.

Does the spark plug spark?

     
YES
     
     
     
The ignition system is OK. Select PCM reset in the PGM-FI INSPECTION MENU to cancel ALL INJECTORS STOP with the HDS, then go to step 25 (engine compression troubleshooting).
     
NO
     
     
     
Go to step 24.
24.
Ignition coil power circuit check:

Ignition coil power circuit check
?1.
Disconnect the following connector(s).

?2.
Remove the ignition coil relay (A) from the under-hood fuse/relay box.


?3.
Check for continuity between test points 1 and 2.
Test condition
OFF mode
 
Ignition coil 3P connector: disconnected
 
Ignition coil relay: disconnected
Test circuit
IG (IGN COIL)/IG COIL RLY OUT
Test point 1
Ignition coil relay 4P socket No. 2
Test point 2
Ignition coil 3P connector No. 1 (RED)


Is there continuity?

     
YES
     
     
     
     
NO
     
     
     
Repair an open in the IG (IGN COIL)/IG (IGN COIL J/C)/IG COIL RLY OUT wire between the ignition coil relay and ignition coil.
25.
Engine compression check:

Engine compression check
?1.
Do an engine compression inspection

Is engine compression OK?

     
YES
     
     
     
Go to step 26 (EVAP canister purge valve check).
     
NO
     
     
     
Check for wear or damage to these parts:
Incorrect valve clearance
Confirmation of cam timing
Oil pressure relief valve
Damage or worn cam lobes
Damage or worn valve and seats
Damage cylinder head gasket
Damage or worn piston rings
Damage or worn piston and cylinder bore
26.
EVAP canister purge valve check:

EVAP canister purge valve check
?1.
Press the engine start/stop button to select the OFF mode.

?2.
Disconnect the following connector.

?3.
Disconnect the vacuum hose (A) from the EVAP canister purge valve (B) in the engine compartment, and connect the vacuum pump/gauge, 0?30 inHg, to the purge line.


?4.
Start the engine.

Does the vacuum gauge indicate vacuum?

     
YES
     
     
     
     
NO (Reproducible failure)
     
     
     
Go to step 27 (fuse check).
     
NO (Intermittent failure)
     
     
     
Go to step 28 (relay check).
27.
Fuse check:

Fuse check
?1.
Check the following fuses.
Fuse
No. A7 (15 A) to the PGM-FI subrelay
Fuse
No. A9 (15 A) to the ignition coil relay
Fuse
No. A15 (15 A) to PGM-FI main relay 1
Location
Under-hood fuse/relay box

Fuse
No. B9 (20 A) to PGM-FI main relay 2
Location
Under-dash fuse/relay box

Are the fuses OK?

     
YES
     
     
     
The fuses are OK. Go to step 28 (relay check).
     
NO
     
     
     
Replace the blown fuse(s).
28.
Relay check:

Relay check
?1.
Test the following relays:
NOTE: In case the failure is not reproduced, the following relays may have an intermittent failure.
PGM-FI main relay 2
Ignition coil relay
PGM-FI main relay 1
PGM-FI subrelay

Are the relays OK?

     
YES
     
     
     
     
NO
     
     
     
Replace any damaged relays.