33. High voltage (low vacuum) at mass air flow sensor (or MAP sensor)

I think this means its not detecting my MAF sensor?? I'm not sure. It was running really shiddy before i replaced the MAF; it would die at intersections, at idle...etc. now it seems to be running fine, but SES light is still on. I disconnected the battery for 10 minutes to make sure and reset the ECM. I don't know what else could be wrong.

I had to solder the connector onto the wires but I'm sure they're good connections. Any ideas?



P.S. off-topic Question, but my mechanic told me that I have POSI, cause all IROCs came with it, but I only ever leave one-leggers. I'm pretty sure its not. Is he right in saying that, and maybe my POSI is "burned out"? Can you "burn out" a POSI diff?


Thanks a lot guys.

 

Check your MAF wires mine did the same thing and I found they were chaffed near the alternater, and grounding aginst the block and brackets. Also, my IROC is NON posi, open diff, so I'd say your mechanic is missinformed.

 

I am having the same exact smae trouble so any help would be greatly appreciated.

 

I am havin a prob i have gotten codes 32, 34, and 36 at different times, but my car gets bogged down at first it will drive fine and then it will get just misfires but doesn't stall