Scoupe L4-1468cc 1.5L SOHC VIN J MFI (1994)
Knock Sensor: All Technical Service Bulletins
Engine - Surging, Hesitation, Rpm Hunting at Idle
Group: ENGINE ELECTRICAL
Number: 94-36-004
Date: OCTOBER, 1994
Model: 1993, 94 SCOUPE
Subject:
SCOUPE DRIVEABLITY DIAGNOSIS
DESCRIPTION
This bulletin provides diagnosis check points for driveability conditions such as "surging", "hesitation" and "rpm hunting at idle" for 1993 and 1994
distributor equipped Alpha engines.
NOTE:
These conditions may not appear until the vehicle has been driven at least 20 miles. Therefore, it is important the vehicle is thoroughly test driven
before returning it to the customer.
CAMPAIGNS
Make certain all campaigns related to the vehicle have been performed. The following campaign TSB's apply to the 1993-94 Scoupe:
93-01-001 (All)
93-01-002 (Cal)
94-01-006 (Cal)
94-01-009 (Fed)
DIAGNOSTIC TROUBLE CODES
Use the MUT tester to check for diagnostic trouble codes. Repair as necessary.
FUEL
Fuel and fuel filter quality are directly related to the overall driveability of the vehicle.
1.
Check fuel for contamination and fuel filter for clogging.
2.
Check the fuel pressure and verify the readings are within specification.
If the measured value is out of specification, refer to the service adjustment procedures for Fuel Pressure in section 31 of the shop manual for further
diagnosis.
IGNITION SYSTEM
1.
Perform the Ignition Coil campaign 93-01-001 (if it has not already been completed.) If it has, make certain the ignition coil cable is routed to the
correct position.
