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1988 Chev/GMC Truck s15 blazer 4.3L MIL Lamp on
Posted to GM Driveability on 6/11/2000

Has repeated MIL coming on. Has above codes, always 32 and either a 12 or 13, but never both at the same time. I can drive and watch the O2 with my snap on scanner and it seems to be functioning ok. It is somewhat slow switching, but it does switch. What does ...

 
Message Closed w/FIX

car Vehicle Data

1988 Chev/GMC Truck s15 blazer

VIN [No VIN Available]
Engine4.3 L / 6 cyl
EmissionsCa emissions
SymptomsMIL Lamp On
OccursHot, Cruise, Intermittently
Misc.Small Blazer

Trouble Codes

12O2 sensor
13O2 sensor
32EGR malfunction
Message Closed w/FIX

car Vehicle Data

1988 Chev/GMC Truck s15 blazer

VIN [No VIN Available]
Engine4.3 L / 6 cyl
EmissionsCa emissions
SymptomsMIL Lamp On
OccursHot, Cruise, Intermittently
Misc.Small Blazer

Trouble Codes

12O2 sensor
13O2 sensor
32EGR malfunction