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New Chip, Now Runs Crappy

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Old 06-19-2004 | 08:34 PM
  #1  
Scott57350's Avatar
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Joined: Dec 2001
Posts: 90
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From: Cleveland, Ohio
Car: 1991 Z28
Engine: 355 TPI
Transmission: 700R4
New Chip, Now Runs Crappy

Ok so I went ahead and ordered a chip for my 91 Z28. It has vortec heads and the Lt4 hotcam with the SLP 25lb injectors. it was running way rich with the stock chip. So I got a custom chip and now it runs like ****. it ilde's around and won;t stay steady. Should I retime the car again, do you think the timing could be all wack now or no Yea yea I know everyone is gona say burn ur own but I don;t have the equipment and I know nothnig about it right now. SO anyother suggestions besides calling um back up and having them re-do the chip.
Old 06-19-2004 | 08:58 PM
  #2  
Black 91 Z28's Avatar
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Joined: Oct 2001
Posts: 571
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From: Starkville, MS
Car: 1991 Camaro Z28
Engine: 350
Transmission: 700R4
I assume your car is in good tune? Set the timing back to stock, 6 deg. If it runs worse with the new chip call them back up and make them fix it. If you bought a part and brought it home and it was broken you'd take it back wouldn't you? The same should apply for the chip.
Old 06-20-2004 | 02:25 PM
  #3  
blacknastyz28's Avatar
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From: Hickory, North Carolina
Did you first reset the computer? If so I'd call the company back.
Old 06-21-2004 | 04:07 PM
  #4  
Scott57350's Avatar
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Joined: Dec 2001
Posts: 90
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From: Cleveland, Ohio
Car: 1991 Z28
Engine: 355 TPI
Transmission: 700R4
Well set the timing back to 6 and well see how that goes. They said if that doesn't work they'll burn another one and try again. Hey blacknasty the car is in Charlotte actually at my parents house. My dad took it to a camaro show last sunday I dunno if you were there or not. Burgundy 91 Z28 was mine. I wish i could find someone to burn chips for me or show me how
Old 06-21-2004 | 04:37 PM
  #5  
3.8TransAM's Avatar
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Joined: Feb 2000
Posts: 7,015
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From: Schererville , IN
Car: 91 GTA, 91 Formula, 89 TTA
Engine: all 225+ RWHP
Transmission: all OD
Axle/Gears: Always the good ones
go to the PROM board follow link in my sig :-)


Hit up all the stickies at the top and start learning, gonna be a real pia now that the car isnt stock :-)

been there done that did it, now i vouch for leanring it stock before modding, but that usually isnt the case :-)

Read the intor articles from tuning basics to what u need to start to where to find the stuff is all listed there....

later
Jeremy
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