OK, I've been chasing intermittent error codes for a while, indicating lean or rich on both banks. I've replaced both O2 sensors, the PIP, the harmonic balancer and the FPR. All of these have helped the Cobra Clone run better than it has in a long while. I replaced the harmonic balancer after I couldn't set the timing after rebuilding the distributor, turns out it spun like 8* or something. But today, the car began to run like a$$.
Current codes are:
176
181
186
189
212
Not sure why 212 is there, I used a Motorcraft PIP. Anyway, code 186 is a new code, so I searched the forums. I found this thread: https://www.stangnet.com/mustang-forums/threads/codes-186-176.466579/#post-4201109. It suggested a bad MAF and a way to test it. Now, as of today, my tach needle has been bouncing around anywhere from 100-200 RPM at random, even at idle, and the engine feels like I lost a ton of power. I unplugged the MAF, and while the engine run poorly the tach needle was STEADY. I could hold it at a specific RPM and the needle didn't move.
I've never dealt with a bad MAF before, though I've cleaned it a lot. Anyone know if this was a valid test for a bad MAF?
Thanks.
Current codes are:
176
181
186
189
212
Not sure why 212 is there, I used a Motorcraft PIP. Anyway, code 186 is a new code, so I searched the forums. I found this thread: https://www.stangnet.com/mustang-forums/threads/codes-186-176.466579/#post-4201109. It suggested a bad MAF and a way to test it. Now, as of today, my tach needle has been bouncing around anywhere from 100-200 RPM at random, even at idle, and the engine feels like I lost a ton of power. I unplugged the MAF, and while the engine run poorly the tach needle was STEADY. I could hold it at a specific RPM and the needle didn't move.
I've never dealt with a bad MAF before, though I've cleaned it a lot. Anyone know if this was a valid test for a bad MAF?
Thanks.
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