Cam Sensor - Circuit Code 41 Chart Update

9223buick05

Bulletin 91-6E-9

Date Feb. '91

Ref. No. 91-103-6E

Corp. Ref. No. 016547R


SUBJECT:
SERVICE MANUAL UPDATE - SECTION 6E3 - DRIVEABILITY AND EMISSIONS REVISED CODE 41 CHART

MODELS AFFECTED:
1990-91 REGALS





This bulletin updates the ECM Code 41 Diagnostic Chart on Page 6E3-A-73 in "Driveability and Emissions" Section 6E3 for 1990-91 Regals equipped with the 3800 (VIN L) engine.

The revised chart addresses the possibility of a faulty ignition module causing ECM Code 41 to be set by not supplying the CAM sensor signal to the ECM.