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TPI Tuned Port Injection discussion and questions. LB9 and L98 tech, porting, tuning, and bolt-on aftermarket products.

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Old 08-16-2005, 12:12 AM   #1
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Car: 1989 irocz convert
Engine: 383 tpi
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Help...

I just installed my new chip for my computer and my "service engine soon " light will not turn off. I tried disconnecting the battery cable but it lights up every time i start it...any suggestions??

I replaced my 305 with a 383 and upgraded my 19 lb injectors with 30 lb ones...this was the reason for a new chip.
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Old 08-16-2005, 01:20 AM   #2
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Car: 1992 Pontiac GTA
Engine: 305TPI
Transmission: 700R4
Axle/Gears: 10-bolt, 2.73

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What SES codes are being thrown?
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Old 08-16-2005, 01:25 AM   #3
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SES codes????
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Old 08-16-2005, 01:36 AM   #4
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Yeah the SES is lighting up because the ECM is sending one or more trouble codes.

There are about forty different codes.

So what's has the car been telling you?

Did you miss hooking something back up when you did you engine swap perhaps?
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Old 08-16-2005, 01:16 PM   #5
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Not sure...i am guessing i need a scanner to decifer the codes..right??
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Old 08-16-2005, 03:47 PM   #6
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No, you can jumper the terminals with a paper clip or similar device. Then read the flashes. If you are unfamiliar with the procedure, grab a Haynes manual or search this site.
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Old 08-16-2005, 03:47 PM
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