Hello all. I have a 1996 ws6. the engine was rebuilt by the dealer at about 86k. I blew a head gasket and had the heads rebuilt and added a hotcam kit from scoggin. I added pacesetter lt, electric water pump, flowmaster muffler, k&n filter, spec stage 2 clutch. I had to get the os extenders because of the long tubes. I have code p0100, I searched and found that the common culprit is the pigtail. I am getting 12V for the pink wire. the fuse under the hood isn't blown. I did find that the yellow wire had a voltage of only .86V. I'm not sure what this means. I did have the pigtail disconnected. Anyone have any ideas. pleas help i haven't drove this car in about a year and i miss my baby.

 

ttt

 

If you know someone with the same type car swap it out and see if the code comes back. Otherwise you could just buy a new one and see if it helps. They aren't that much and seem to go out more than they should. I think the corossion is what makes them fail.

 

You test the yellow signal wire with the MAF plugged in. Should be 5V with the key on/engine off. Engine running, the voltage will drop but the exact voltage isn't important. The signal from the MAF is a variable frequency riding on the voltage. When the engine is running, if your multi-meter has a "frequency" scale, you would see about 2,600 Hz at idle.

 

I tested the yellow wire with it plugged in. I am getting 1V. My dmm doesn't have a frequency tester. when i wiggled it a bit or disconnected the harness from the MAF sensor car cut off. It didn't do this before. I'm going to order 2 new harness' and see if this fixes it. Will soldering be fine with some heat shrink or is crimping better?

Also i bought a new MAF from auto zone and that did not fix the problem.

 

Soldering is always better than crimping. And don't use AZ sensors, use GM. A way to test the MAF is to gently tap on it with a screwdriver handle with the engine running. If the engine stumbles or misses, the MAF is bad.

 

Will do thanks green. for now i'm waiting for the connectors to arrive. I did however get another maf and the ses light was still on. maybe i need both.

 

Just an update. turns out the pigtails were the problem. thank you all.