Thread: DTC P0102 But Mass air Flow Sensor is good

i Have a buddy with a 2000 GTP Thats Mildly moded. I scanned his car and it had the p0102 code. Normally we all think bad MAF sensor. Right? Went to the local yard and picked up a few for little to nothing..... Replaced it, cleared the code, and not even 10mins each time same code, same result. We then went to buy one new from the parts store (OUCH) and as sure as sh*t stinks..... Same code pops up. I checked the wiring and connector and the MAF and it seems to be ok. The scanner that i have allows me to view each sensor voltage outputs and every other sensor that i can read is responding except the MAF. The car even have all the "bad maf" symptoms, like running sluggish at idle, stalling while at a stop light, hard starts, even running a little better when i unplug the maf. Im wrecking my brain here guys Please help!!!!

Originally Posted by L KELLS

i Have a buddy with a 2000 GTP Thats Mildly moded. I scanned his car and it had the p0102 code. Normally we all think bad MAF sensor. Right? Went to the local yard and picked up a few for little to nothing..... Replaced it, cleared the code, and not even 10mins each time same code, same result. We then went to buy one new from the parts store (OUCH) and as sure as sh*t stinks..... Same code pops up. I checked the wiring and connector and the MAF and it seems to be ok. The scanner that i have allows me to view each sensor voltage outputs and every other sensor that i can read is responding except the MAF. The car even have all the "bad maf" symptoms, like running sluggish at idle, stalling while at a stop light, hard starts, even running a little better when i unplug the maf. Im wrecking my brain here guys Please help!!!!

Check the wires at the maf connector. Key on but engine off. Check the signal wire and see if you're close to 5v (yellow wire). If you're good, check the ignition wire it should show about battery voltage (pink wire). Check ground wire, it needs to ground (black/wht wire). You could connect a 12v test light between the ignition feed and ground wires to see if the light lights.

I see blown fuses on the maf VERY commonly.

Got the problem solved guys, it was the fuse, but it blew out again. i replaced it again with a new fuse and not just an old one i had in my tool box. So far so good with the new fuse. ill keep you guys posted on the outcome

where is the fuse for the maf??? cant say ive ever seen it

Thank ya much... gonna go check it now

Originally Posted by dsmuts

It says IGN somthing or other check that one. It in the fuse panel under the hood

YAY no more p0102 but I still hav evap issues thank you again time to continue my search

I now have a broken map nipple u think its safe to run no map untill i can get a new one???