I have a 94 Lumina, have changed fuel filter, computer, throttle sensor, checked fuel pressure, and it only happens when its hot out, dies at stops, backfires now and then, chugs as it gets warmer

Asked by Karen Jul 10, 2015 at 01:43 PM about the 1994 Chevrolet Lumina

Question type: Maintenance & Repair

Is it possible to be my catalytic converter, it did ths last summer ran great in winter and doin again with the heat.

2 Answers

59,080

Check air filter and clean or replace Idle Air Control Valve. Have catalytic converter checked with Exhaust System Back Pressure Kit you can get from most parts stores.

2 people found this helpful.

Air filter has been done, along with spark plugs and wires, and ill look up to see where the idle control air valve is, I've ran out of most options but the converter which ill just tke it in to have it checked if its cheaper, costs only 20 to tke in, ty for advice

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