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I have a 1995 chevy van g20 5.7 8 cylinder the van burns a lot of gas, a rich gas smell coming from thr tail pipe. when i stop the van and i accelerate again i get a flat spot. i put the van in drive and i put my foot on gas pedal and brake i accelerated and i get no power. when i drive its ok. what can it be. i got a tune up still the same

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  • Anonymous Mar 15, 2014

    kd24de Nissan

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You might have a shorted injector driver. Disconnect the injector harness from that cylinder and connect a noid light or a high impedance test light and start the engine. If the light stays on instead of blinking, then the injector driver in the PCM is shorted and replacement will be required.

Posted on May 18, 2011

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