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New engine, car runs weird. HELP PLEASE!!

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Old Jan 25, 2009 | 10:04 PM
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camaro_70's Avatar
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New engine, car runs weird. HELP PLEASE!!

Just rebuilt the engine in my 1990 camaro, all stock other than pro comp heads, lt4 hot cam, and slp runners. Had pcmforless burn a chip and car ran great. Engine lost oil pressure shortly after install, so i tore it apart and fixed that problem. Now for the fun part. After installing engine again the car shows ses code number 43 and when i put it in gear it shakes and runs horrible, and when i try to give it some gas it will not accept it and wants to die. Eventually when i play with it just right i can get it to go down the road and it runs mediocre. I have tried unplugging knock sensor and pretty sure everything is plugged in correctly. I am at my wits end trying to fix it so any help would be greatly appreciated.
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Old Jan 25, 2009 | 10:25 PM
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Badass355ciz28's Avatar
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From: Leicester,Massachusetts
Car: 1983 CHEVROLET CAMARO Z28
Engine: Forged 355 with a GT45 turbo
Transmission: TKO 600
Axle/Gears: built 4th gen rear with 3.27s
Re: New engine, car runs weird. HELP PLEASE!!

you check the ignition timing?
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Old Jan 29, 2009 | 09:09 PM
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Re: New engine, car runs weird. HELP PLEASE!!

thanks for the response. yea i have the initial timing set at 8 degrees. Any one else have any more ideas? I am in a bind. I have tried resetting the computer and code still comes back and problem presists. Is there a way to by-pass the knock sensor? Please help....
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Old Jan 29, 2009 | 09:32 PM
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From: oxford n.c.
Car: 1991 transam
Engine: 305 30 over long tubes into 3" y
Transmission: 700r4
Axle/Gears: 4:10
Re: New engine, car runs weird. HELP PLEASE!!

code 43 = electronic spark control, check the voltage at the ecm a-b connector terminal b7;it should be over 6 volts unless the system is sensing detonation.check for loose connection. replace the esc sensor and/ or module,jimmy
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Old Jan 31, 2009 | 03:03 PM
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Re: New engine, car runs weird. HELP PLEASE!!

what is the module you are speaking about?
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