DEMonte1997 Posted December 15, 2007 Report Share Posted December 15, 2007 Is code #34 related to MAF or MAP or both? Car will start right up and just die. I unplugged the MAF and it made no difference. MAF was replaced 6 months ago so that kind of irks me if it went again. Hope it is just coincidence. To get the car home, I had to more or less powerbrake it from traffic light to traffic light. Would a vacuum leak pop the same code? Quote Link to comment Share on other sites More sharing options...
Andrew Posted December 15, 2007 Report Share Posted December 15, 2007 could be either. make sure you dont have a vacuum leak somewhere, could be a line popped off. Quote Link to comment Share on other sites More sharing options...
19Cutlass94 Posted December 15, 2007 Report Share Posted December 15, 2007 what is code 34? Once we know that we can help out more as to just giving guesses. Quote Link to comment Share on other sites More sharing options...
ns87 Posted December 15, 2007 Report Share Posted December 15, 2007 does that have a 3.8 or 3.1? On mine, the vacuum line popped right off the MAP and the car barely ran Quote Link to comment Share on other sites More sharing options...
DEMonte1997 Posted December 16, 2007 Author Report Share Posted December 16, 2007 It's a 3.8L. Code #34 is for Mass Air Flow Sensor circuit. I guess that means the problem could be the sensor itself or any wiring associated with it. I checked the vacuum lines that I could and they seem okay. Most of them were replaced recently. The problems didn't happen suddenly, rather they progressed during the day. The first couple times it just bucked a little or seemed like it was stuttering. Then it stalled. Started the car and it would die right away. I started it again and held the throttle down half way. The SES light turned off so I let off the gas and the car idled fine. That would seem to say that it's electrical and not a bad vacuum leak. Now the car is sitting in the driveway and it won't run unless I hold my foot on the gas pedal. Even then, it tries to stutter and stumble sometimes. So you think we are looking at MAF here? Damn they are expensive. edit: From looking at Chilton manual, it looks like there's three possibilities here. 1. MAP is malfunctioning 2. MAF is failing at a low frequency or power is being lost to the sensor 3. Vacuum leak Quote Link to comment Share on other sites More sharing options...
Andrew Posted December 18, 2007 Report Share Posted December 18, 2007 try cleaning the MAF before you replace it, MAF cleaner only. worth the shot, but im leaning towards it needing replaced. Quote Link to comment Share on other sites More sharing options...
DEMonte1997 Posted December 21, 2007 Author Report Share Posted December 21, 2007 Guys, thanks for the tips. I brought it down to a repair shop a couple days ago because I didn't really have the time to fuss with it. They tested the MAF, it was fine. They test drove the car and as luck would have it, the car has decided to work fine. I told them to hold onto the car for another day to see if it'll act up again but something tells me that won't happen. When I get the car back, I'll take out the MAF and check to see what the element looks like. I have MAF cleaner here and as was said, it couldn't hurt to try. Other than that, I'm completely out of ideas now. Maybe ECM? The car has high miles and I don't know if the computers in these things begin to go with time. Does anyone know if the ECMs are plug and play with these things like they are with the OBDII w-bodies (as long as you match the model and year)? I can't deal with a car that has electrical gremlins. Quote Link to comment Share on other sites More sharing options...
DEMonte1997 Posted December 23, 2007 Author Report Share Posted December 23, 2007 Update: It was the MAF. It just decided to take a shit at the last possible moment while the mechanic was looking at it. MAFs are expensive. I don't like the way the guy tacked the MAF wiring back up but I guess it works. Quote Link to comment Share on other sites More sharing options...
Andrew Posted December 23, 2007 Report Share Posted December 23, 2007 MAFs are expensive. yeah they are! at least its back up and running good again. Quote Link to comment Share on other sites More sharing options...
19Cutlass94 Posted December 23, 2007 Report Share Posted December 23, 2007 I was hoping it would be a MAP sensor cause I have about 6 of them in the garage. Quote Link to comment Share on other sites More sharing options...
DEMonte1997 Posted December 26, 2007 Author Report Share Posted December 26, 2007 I was hoping it would be a MAP sensor cause I have about 6 of them in the garage. LOL Me too! This car ate the last MAF in 4 months but what I noticed was that MAF was a POS. It wasn't a Delco or a Standard. I guess it was one of those generic ones so it probably wasn't going to last very long regardless. Hoping this one outlives the car. LOL She seems happy with it thus far. Quote Link to comment Share on other sites More sharing options...
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