1990 Mazda Protege Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 1990 Mazda Protege
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1990 Mazda Protege ProblemsIdles Rough, Misfires, and Possible Check Engine Light
A loose or corroded ground terminal on the driver's side of the cylinder head can cause a rough idle, misfires, and there may be trouble codes. Restore the ground to the cylinder head.
An electrically shorted air flow sensor can cause a crank-no start condition. Diagnosis may show that ignition spark is normal, and there are no trouble codes stored.
If the engine cranks but does not start, and diagnosis shows no fuel pressure, the fuel pump relay is frequently the problem. If the fuel pump relay is defective, the fuel pump will not energize and therefore, not generate fuel pressure so the engine can run.
1990 Mazda Protege QuestionsWhy can't my car make it up the mountain? It loses power & slows down. (1 answer)
I downshift but it still gets slower & slower. I had to drive in 2nd at about 20 mph on a 6 to 7% uphill grade. Doesn't use oil, runs great in the city.
water pump licking, the car is over heating
when i have about 1/4 or less gas left in my fuel tank car kinda chokes when turning and giving it gas on the corners, but when it straightens out it works fine. could it be water in my fuel tank?
1990 Mazda Protege RecallsIgnition Electrical Switch Overheats
The electrical portion of the ignition switch may lack proper grease at the contact points, leading to the points becoming conductive and overheating. Dealers will replace the ignition switch free of charge to resolve the concern.