So the car is stalling while driving and at startup occasionally. Fuel economy has gotten worse. Smells rich when trying to stall while driving. throwing code 34 and 36. got bad today when i could barely make it home but now its running fine again but the ses light is still on.

its pissing out rain so im not working on it tonight, but getting everything in order for when i do.

first i will actually inspect the maf for broken wires, damage etc. Note that i have a cold air intake which only fits with the maf unbolted from the mount so it could possibly be damaged right?

if the maf looks ok visually. i will replace the maf burn off and power relays, reset ecm and check. And i will check the TB and all hoses etc. for vacuum leaks. Oh, and what about the fuel pump relay...it usually primes...

Just to be sure i will check/adjust/clean TPS and iAC

Any other advice? im pretty new to TPI ive always had carbs in my third gens.

1 other thing, are napa etc. relays really that bad, should i really pay 2x more for gm relays?

thanks guys, i hope you can help. I need this fixed asap. i searched and just wanted to summarize that i got everything right.

 

34 is MAP SENSOR VOLTAGE (LOW)
36 is ignition system circuit error

Mine has about the same readings mine is reading

33 and 36
Mine reads on my computer
33 which is a MAP SENSOR VOLTAGE (HIGH)
And it runs 36 just like yours!! LOL
I need some help with mine also so we're in the same bind!!

I think your Mass Air Flow sensor is fine

 

ended up being relays

 

hi!
i get the same codes.. did you changed the fuel pump relay too?
thanks

 

Man I’ve chased code 36 for so long without ever finding the root…