Loses power

Asked by Sep 14, 2016 at 08:06 AM about the 1990 Chevrolet Cavalier Z24 Coupe

Question type: Maintenance & Repair

1990 z24 loses power at 1800 rpm. Replaced fuel injectors,  
plugs, wires crank sensor,  fuel filter, vacuum lines, ignition
module, and tps plug. Anyone have an idea?

3 Answers

46,405

The fuel pressure needs to be measured with a gauge to see if it is dropping at 1800 rpm.

1 of 1 people found this helpful.
46,405

Also take a real close look at the coils. You could have on breaking down under load or it could be split or otherwise damaged.

1 of 1 people found this helpful.

Thank you Bob I will do so

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