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228r install

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Old 11-05-2009, 07:23 PM
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I installed my cam and the car will crank but not stay cranked unless I hold my foot on the gas. I had the car tuned before and I'm sure that it needs to be tuned again. It has the stock ls1 intake, throtle body and injectors. It's a 99 trans-am. I just wanting to see what you guys think about it. I have 241 heads milled .30 and ported, headers and stall. I measured for pushrod length. When I had it tuned be the guy he said my mass air flow meter wasn't reading, but before the cam he tuned it to run great.
Old 11-05-2009, 09:48 PM
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Did you fix the MAF problem? Did you get the cam and crank gear dots lined up right?
Old 11-05-2009, 11:17 PM
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Lots of times with even small changes it takes time for the computer to relearn idle.
Old 11-06-2009, 12:39 AM
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Check around the intake and throttle body for a vacuum leak. It might just take a little time, or a new tune.
Old 11-06-2009, 07:15 AM
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Yea they are lined up dot to dot. I havent messed with the mass airflow since he tuned it for me. I will mess with it a little more this weekend and see what i come up with.
Old 11-06-2009, 09:23 AM
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Does the car sound like everything is right when it is running? Nothing is ticking, knocking, etc? Are there any SES lights on? If so, get a scanner and see what the codes are for. If everything sounds good and no codes then go ahead and run your heat cycles and get the thing tuned.

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Old 11-06-2009, 07:50 PM
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I would turn your throttle body set screw about half a turn to crack the throttle body blade to let more air in to the motor, your IAC may not be giving your motor enough air. Make sure to do a TPS relearn. Hopefully it will help get you by until you get to the tuner.
Old 11-06-2009, 08:39 PM
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I agree sounds like not enough air.




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