Question about 1991 Chevrolet Cavalier

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It runs like it is out of gas. i replaced the fuel pump and filter. all cylinders are firing. when running, runs like it is out of gas, then starts running fine, and when i give it a lil bit of gas, push the gas pedal and hold it down a lil, it runs fine, i let off, it goes back to running like its out of gas. it seems like its choking out. but i dont know what to do.

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It still has a carburetor, it sounds like you need to replace the carburetor accelerator pump that squirts gas into the carb every time you step on the accelerator.

Posted on Sep 03, 2013

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You got fire and fuel .............. you may have water in your fuel system or your fuel injectors may be bad . Try some stp gas treatment before checking injectors .

Posted on Dec 29, 2010

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This engine uses a CPI unit to deliver fuel to the cylinders. The CPI unit consists of a central injector that feeds fuel to the poppet valve that are right above the intake valves. The poppet valves require high fuel pressure in order to open and deliver fuel to the cylinders at start up.

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