ive read through all the archives and tried everything except putting in an aftermarket chip to get rid of my code 33 in my 87 trans am with a 305 TPI vin code F including:

-new MAF sensor
-new MAF relays (power and burnoff)
-new TPS
-Adjusted TPS by sticking things between it and the lever on throttle and by turning actual sensor (now at .62 volts on idle)
-checked all wiring from sensors to relays and to computer through firewall
-New ECM
-went through all diagnostic steps in the shop manual

i am still nowhere, the car will either start with the SES light on or drive for awhile and after stalling or severe uneven throttle (without touching pedal or while holding steady car revs drastically) the light will appear and upon shorting ALDL i get a code 33 and every now and then 33 and 36. has anyone found a fix to this problem other than buying an aftermarket PROM which some have said gets rid of the problem? thanks please reply soon before i get a chance to drive it off the nearest cliff.

-Russ

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