MAF, EGR issues..
MAF, EGR issues..
Howdy. A few months back she was hesitating and stalled out at lights a few times, threw code 64 indicating the MAF sensor was the culprit. Unplugged it and was in like flynn a few months, then something else unrelated to an emission issue had me check the codes again, and I found the code for the EGR valve was now showing, #37 I beleive it was, along with the original MAF code. The car ran ok, but I went out and bought a new MAF sensor, installed it, plugged it in and fired her up, and its still hesitating and stalling like before. Assuming the part is good, as it is a new rebuilt , could the EGR valve itself now show more in causing symptoms? I think not, as once i unplugged the MAF she runs fine like before. Do I need to clear the codes by disconnecting the battery before the MAF sensor performs properly when plugged back in?
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J Wikoff
- Administrator
- Posts: 17080
- Joined: Mon May 19, 2008 7:01 pm
- Year and Trim: 1992 SSE
2009 G8 GT - Location: Central Illinois
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Re: MAF, EGR issues..
Yes, unplug the battery for a bit.
WHITE WHINE - 1992 SSE Supercharged 236.26 ci (.040 Over) 15.090 at 90.2 MPH on old engine w/ slipping trans & melted O2 sensor - Gen 3 M62 and matching TB, Gen 2 Pully, Zillamotorsports Ported LIM, YT 1.72 Roller Rockers, SII FPR & Injectors, Hypertech Thermomaster chip w/ 160 Thermo, TransGo Shift Kit, Infinity/Pioneer Speakers & a 10" Alpine Type R Sub, all the watts, 140 amp Alternator, Ricepipe CAI w/ heatshield, Pilot Angel Eye Foglights, Clear Corners, '02 17" Chrome Bent 5's, Magnaflow F-Body Muffler and Hi-flo Cat, Ceramic Coated Ported Exhaust Manifolds, Fan Override, Monroe Reflex struts, red calipers
2009 G8 GT - Sport Red Metallic, loaded, SOLO Axlebacks, Rotofab Intake, Tuned, autodim mirror, removed intake manifold cover, HSV GTS triple gauge pod, two tone red-hot shifter and HSV SuperSport steering wheel, GXP rear sway bar and diffuser, 3.45 diff and various Camaro suspension bits, LED Taillights
Re: MAF, EGR issues..
Yes, I went and removed the EGR , it seemed to have a slight sound from within when i shook it gently. I used some carb cleaner, rubbed the bottom a bit with an old toothbrush, wiped it clean and dry, reinstalled. Had unplugged the battery for maybe 20 minutes, re plugged in the MAF, started it up, no hesitation, no miss, and no light! I let it run for a few minutes, revved it a bit, still seemed ok. Didn't have time to drive it and see how we did, but will report back when I do. Thanks for the reply back.
Re: MAF, EGR issues..
So far so good. Drove home from work yesterday and all was good, no light, no stalling, etc. This morning started well, the nwhile idling a moment the engine light came on. Once I started to drive it went off and stayed off. Isn't life grand!
Re: MAF, EGR issues..
sorry for wrong trouble code I referenced above, the maf sensor is code #34..the other for egr I think is incorrect too...