Passport EX 2WD V6-3.2L SOHC (6VD1) (1997)
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WARRANTY CLAIM INFORMATION
Refer to the Warranty Claim Information for each Repair Procedure.
DIAGNOSIS
1.
Find out from the customer when the high or erratic idle condition occurs, and the RPM range.
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Within 20 minutes of a cold start
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After braking to a stop
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All the time
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Intermittently, with no set pattern
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If the idle speed ever exceeds 1,300 rpm
2.
Remove the vacuum hose from the fuel pressure regulator, then start the engine.
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If fuel comes out of the fuel pressure regulator vacuum hose connection, go to REPAIR PROCEDURE-FUEL PRESSURE REGULATOR.
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If no fuel comes out of the regulator, reconnect the vacuum hose and continue to step 3.
3.
Connect the PGM Tester. Set it to Engine Data List.
4.
Have an assistant drive the vehicle under the conditions described by the customer.
5.
If the poor idle condition occurs, note the values of the PSP Switch and TP Angle when it is occurring.
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If the PSP Switch is HIGH, but the front wheels are pointed straight ahead, go to REPAIR PROCEDURE POWER STEERING SWITCH.
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If the TP Angle is greater than 0% but the accelerator pedal is not depressed, go to REPAIR PROCEDURE - TPS GROUND.
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If the PSP Switch and TP Angle data are normal, continue to step 6.
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If you are not able to reproduce the symptom, go to step 8.
6.
Discontinue your test-drive. Select Exit on the PGM Tester. Select Misc.. Tests, then select IAC.
7.
Use the PGM Tester to move the Desired Idle speed up to 1,200 rpm and down to 600 rpm in 50 rpm increments. Then move the idle speed within
the same range in 500 rpm increments.
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If the idle speed does not follow the desired idle speed smoothly and quickly, go to REPAIR PROCEDURE - IAC.
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If the idle speed does follow the desired idle speed smoothly and quickly, but will not go down to 600 rpm, go to REPAIR PROCEDURE -
CRACKED INTAKE MANIFOLD GASKET.
8.
Perform the following repairs.
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REPAIR PROCEDURE - TPS GROUND
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REPAIR PROCEDURE - ENGINE/BODY GROUND
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REPAIR PROCEDURE - IAC
DISCLAIMER
Power Steering Switch
1.
Drain the power steering fluid out of the system.
