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badazzlt1USA
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Post subject: MAF MALFUNCTION w/ headers?!?!!!?!?!??  Posted: Fri Feb 07, 2003 4:45 am |
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Joined: Tue Oct 15, 2002 3:21 pm
Posts: 192
Location: Houston, TX, USA
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I just put a set of hooker long tubes on my car......they are running completely open....
I started the car and the dummy light came on.....I scanned it and found error #48 MAF system malfunction....I hooked it up to my computer and saw the maf was measuring air just fine.....I check the wiring and its all ok......what could the problem be? 
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LT1 Edit, B&M shift kit, Long tube Headers, 4.10 Gears, M/T ET Drags
13.022 @ 105.14
1.869 60'
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badazzlt1USA
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Post subject: Posted: Fri Feb 07, 2003 4:48 am |
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Joined: Tue Oct 15, 2002 3:21 pm
Posts: 192
Location: Houston, TX, USA
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I also tried multiple MAFs
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LT1 Edit, B&M shift kit, Long tube Headers, 4.10 Gears, M/T ET Drags
13.022 @ 105.14
1.869 60'
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Roy
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Post subject: Posted: Fri Feb 07, 2003 12:15 pm |
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Joined: Sun May 27, 2001 2:52 pm
Posts: 5556
Location: Mehlingen,Rhineland Pfalz, Deutschland
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badazzlt1USA
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Post subject: Posted: Fri Feb 07, 2003 2:59 pm |
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Joined: Tue Oct 15, 2002 3:21 pm
Posts: 192
Location: Houston, TX, USA
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done and done////
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LT1 Edit, B&M shift kit, Long tube Headers, 4.10 Gears, M/T ET Drags
13.022 @ 105.14
1.869 60'
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Roy
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Post subject: Posted: Fri Feb 07, 2003 3:51 pm |
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Joined: Sun May 27, 2001 2:52 pm
Posts: 5556
Location: Mehlingen,Rhineland Pfalz, Deutschland
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badazzlt1USA
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Post subject: Posted: Sat Feb 08, 2003 2:02 am |
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Joined: Tue Oct 15, 2002 3:21 pm
Posts: 192
Location: Houston, TX, USA
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I found a broken ground wire for something ...I fixed that.....I added 16" header extensions to the long tubes like thunder racing told me to.....still check engine light....now im fonfused....maybe cause I didnt clear the codes? doesn't removing the PCM BAT fuse in the dash clear codes?
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LT1 Edit, B&M shift kit, Long tube Headers, 4.10 Gears, M/T ET Drags
13.022 @ 105.14
1.869 60'
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Roy
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Post subject: Posted: Sat Feb 08, 2003 2:17 am |
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Joined: Sun May 27, 2001 2:52 pm
Posts: 5556
Location: Mehlingen,Rhineland Pfalz, Deutschland
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badazzlt1USA
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Post subject: Posted: Sat Feb 08, 2003 9:42 am |
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Joined: Tue Oct 15, 2002 3:21 pm
Posts: 192
Location: Houston, TX, USA
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yeah I can, just forgot to. I dont have a scanner though.
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LT1 Edit, B&M shift kit, Long tube Headers, 4.10 Gears, M/T ET Drags
13.022 @ 105.14
1.869 60'
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zcam94
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Post subject: Posted: Sat Feb 08, 2003 10:36 pm |
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Joined: Sun Jun 24, 2001 1:32 am
Posts: 324
Location: Giebelstadt, Germany
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Try and surf around at http://www.bfranker.badz28.com/fbody/guides.htm
There are a couple of other sites on there that may help you.
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Stock Throttle Body bored 52mm, Modified airbox, desreened MAF,2800 Vigilante Convertor, Vortex Aluminum elbow, Grant D-Shaped Steering Wheel, Hooker Cat-back. Parts wating: cold air induction w/K&N
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badazzlt1USA
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Post subject: I am so very very stupid... Posted: Tue Feb 11, 2003 6:50 am |
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Joined: Tue Oct 15, 2002 3:21 pm
Posts: 192
Location: Houston, TX, USA
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very stupid...The 12volt Power supply pin on the MAF sensor was bent over...
I am so very very stupid
I was just about to tear my whole car apart to inspect the wiring. has the tools out and everything..
What i dont get is how could LT1 Edits free scanning utility be able to tell me how much airflow the motor was getting if the MAF had no power?
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LT1 Edit, B&M shift kit, Long tube Headers, 4.10 Gears, M/T ET Drags
13.022 @ 105.14
1.869 60'
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