Celica L4-1998cc 2.0L DOHC (3S-GE) (1986)
Engine Control Module: All Technical Service Bulletins
Engine Control - Smoother Acceleration When Cold
REFERENCE ENGINE
NUMBER
007 (REVISED)
DATE
01-12-90
MODEL
'86-89 ST65
TITLE 3S-GE - CELICA GT-S: ECU MODIFICATION
A revised TCCS Electronic Control Unit (ECU) is now available for 1986 through 1989 Celica GT-S to provide smoother acceleration during cold
engine operation.
PART NUMBER INFORMATION:
YEAR / MODEL
Previous PIN
New P/N
Part Name
86
Celica GT-S
89661-20160
89661-20111-84*
ECU
87
Celica GT-S
89661-20110
89661-20111-84*
ECU
88, 89
Celica GT-S
89661-20320
89661-20321-84*
ECU
All EFI
08813-00080
08813-00080
Fuel Injector
Cleaner
*
Remanufactured part is required as replacement for warranty.
SERVICING PROCEDURE:
1.
Before replacing the ECU, perform a thorough inspection to verify that all engine mechanical, fuel, and electrical/electronic systems are operating
to specifications.
2.
Replace the ECU. Refer to figure 1 for location of the ECU.
3.
Two cans of Toyota Fuel Injector Cleaner should be added to a full tank of fuel when replacing the ECU to ensure maximum improvement in cold
driveability.
PARTS RETURN INFORMATION:
Remanufactured Ecu's are rebuilt by Nippondenso-Los Angeles (NDLA). In order to maintain availability of rebuilt units, the original ECU must be sent
to NDLA as soon as it has been replaced.
Note:
Please complete the core information and core credit forms which are enclosed with the remanufactured ECU.
Please return the core immediately to:
TOYOTA MOTOR DISTRIBUTORS C/O NIPPONDENSO-LOS ANGELES 3900 Via Oro Avenue Long Beach, CA 90810