Car Craft Magazine Homepage

116 0506 Tpi 6 Z

The connector for the EST is near the A/C accumulator on the passenger-side fender, and the connector near the distributor is actually for the oxygen sensor. Go figure.
1991 Pontiac Firebird: Solving TPI Nightmares

 The connector for the EST is near the A/C accumulator on the passenger-side fender, and the connector near the distributor is actually for the oxygen sensor. Go figure.  View Related Article

 

 

Car Research Guide