Question about 1993 Chevrolet Lumina APV

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Not running I have a 3.1 that quit running in traffic. I have replaced fuel pump MAF, MAP, plugs, wires and some gaskets and such from the throttle body. The coder says MAF or MAP. I suspect the computer is fried, but the book says it is behind the glove box and I cannot locate it. Help!

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Usually the computer is located up under the dash, right side near the top. You know it by seeing a huge silver casing square box. Before changing this expense part, have a diagnostic test run on it for sure. Is the vehicle overheating before it quits in traffic? Before replacing the fuel pump you should have first listened to hear a slight hum for 2 seconds when turning the key to the on position before starting. If you did, then have the pressure check done on the fuel system just before the injectors. If that was about 60 psi, then the fuel pump would not need replacing.

Posted on Sep 13, 2008


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