PCM codes 13 and 36

[Karl Snedeger]

I have been trying to help my buddy with his 86 L98. It runs like crap and the same two codes keep popping up. 13-oxygen sensor and 36? (I can't remember right now and I am work) MAF burnoff. We have replaced the oxygen sensor and swapped out the MAF sensor with one from a complete FI system I have laying around my garage. To no avail. Anybody got any ideas?

 

[sumoboy]

Service Bulletin Number: 87-99
Bulletin Sequence Number: 050
Date of Bulletin: 8704
NHTSA Item Number: 90918
Make: CHEVROLET
Model: CORVETTE
Year: 1987
Component: FUEL:FUEL EMISSION CONTROL
Summary: SERVICE ENGINE SOON LIGHT-CODE 36 (MAF SENSOR BURN-OFF FAULT)-PUGGED CRANKCASE V ENT TUBE OR FAULTY MAF POWER OR BURN OFF RELAYS-TEST RELAY-REPLACE THE RELAY-ALL 1986-87 CHEVROLET CAMARO/CORVETTE MODELS WITH PFI ENGINES (VIN CODES F AND 8)

 

[Karl Snedeger]

Thanks for the reply. I'll give it a shot this weekend.:cool

 

[Karl Snedeger]

turns out it was the IAC. Reset it according to manual and everthing works great. Thanks to sumoboy.