Modification of Throttle Body And Gasket

TSB No.
TS 4-17 12102

Section Title:
Engine



Division:
Automotive

Category:
Technical



SUBJECT:
MODIFICATION OF THROTTLE BODY AND GASKET

MODEL:
SOHC

YEAR:
SEPTEMBER 1992 PRODUCTION AND LATER


CONDITION:
MODIFICATION OF THROTTLE BODY AND GASKET

CAUSE:
IMPROVED DRIVEABILITY

CORRECTION:
WHEN REPLACING THROTTLE BODY AND GASKET, USE UPDATED PARTS AS LISTED IN THIS BULLETIN





This bulletin is to inform you of the modification of the throttle body and gasket which has been carried out since September 1992 production. These modifications were made to improve rough idle conditions and provide a smoother transition from idle to open throttle. When replacing these parts, please use the updated part numbers as listed in this bulletin.






PARTS SUPPLY DATA






Throttle body assembly (viewed from underside)

- Vacuum passage modified
- 1.8 mm hole added to throttle valve in lower throttle body






Gasket (viewed from underside)

- Gasket area enlarged to change vacuum passage