Scoupe L4-1468cc 1.5L SOHC (8 VALVE) (1991)
PARTS INFORMATION:
WARRANTY INFORMATION:
Normal warranty operation codes and times apply.
Technical Service Bulletin # 9436006
Date: 941001
Engine - Stalls On Initial Cold Start
Group: ENGINE ELECTRICAL
Number: 94-36-006
Date: OCTOBER, 1994
Model: 1990-1992 EXCEL
1991-1992 SCOUPE
Subject:
1.5 L ENGINE INITIAL START/STALLING FIELD FIX REPAIR KIT
Some 1990 - 1992 Excels and 1991 - 1992 Scoupes with automatic transmissions may stall when the transaxle is shifted into gear immediately after
starting a cold engine in ambient air temperatures of 60 - 86° F. A cold start enrichment field fix kit has been designed to correct this condition. This kit
does not affect engine performance at any other time.
It is imperative that you check, and adjust as necessary, the following items prior to installing the repair kit:
1.
Perform MUT diagnosis:
A.
Check for ECU fault codes.
B.
Verify proper reading from:
1)
Air flow sensor (# 12)
2)
Air intake temperature sensor (# 13)
3)
Engine coolant temperature sensor (# 21)
4)
Barometric pressure sensor (# 25)
2.
Check and adjust the base idle speed, throttle position sensor, and ignition timing according to the shop manual procedure.
3.
Check for vacuum leaks from vacuum hose connections, PCV hose and EGR system.
4.
Check automatic transaxle fluid level (must be checked in Neutral, not Park).