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Have some codes need help

P

pDuB257

New member
Hey guys I'm new to the forum and was wondering if you guys could give me some more information on how to fix these check engine light codes that my 1998 Grand Prix GT 3.8L N/A is throwing. I went to AutoZone and they let me use their OBD-II scan tool and I got 3 codes that showed up when the scanning was complete.

The first code is: P0108 and says on the paper that the MAP (Man. Absolute Pressure), BARO/MAF (Mass Air Flow), or VAF (Vane Air Flow) sensor(s) are bad.

The second code is: P0507 and says on the paper that the IAC circuit condition or idle speed is higher/lower than expected.

The third code is: P0113 and says on the paper that the IAT circuit or sensor is bad.

I know that most of these are just minor problems and simple fixes that involve putting on new sensors on certain parts of the car. I recently installed a short ram intake on my car, so could that be the reason why the IAT sensor is bad? But my question is where are all of these sensors located on my car and how do I go about fixing them? Are these codes saying that it is more than changing the sensors? Any help is appreciated. Thanks in advance.
 


It sounds like some things may have gotten unplugged. The IAT sits in the intake tube, so make sure that's where it is and that it's plugged in. The fact that all three of those sensors are right there together, location-wise, leads me to believe that you may have somehow unplugged all of them. The IAC and MAF both have similar plugs. There is a possibility they could have been switched around somehow. The IAT code may show if you didn't plug in the sensor.
 
After checking on those things if it still does not work let us know and will work on some other possible issues
 
Okay guys, thanks for your help. I really appreciate it. When I installed the short ram intake, it was a real pain to install considering the fact that I got it off eBay and it didn't fit very well since its not a name brand intake. So I had to cut off part of the stock air box where the stock air filter sits to make the intake piping and filter fit. Not sure if I should of done that or not, but I can always go to the junk yard and get the same stock air box again and replace it if need be. Also, while I was installing the intake, I noticed in the stock air box there is a computer like box sitting in there. Is that the ECU or something? I was wondering why there was a computer box in there with the air filter and box because I have never seen anything like that before. When I cut off part of the stock air filter box that holds the filter only, I made sure that the computer looking thing was still in its own space with no damage to that side of the box, so no water or debris gets in there. I actually lost the IAT sensor rubber O-ring that holds the sensor in place during installation and therefore it might be triggering the check engine light because the sensor is not in there snug enough.
 
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