2001 Mazda Protege Problems
RepairPal has identified the most common problems with the 2001 Mazda Protege based on complaints from actual vehicle owners. We'll tell you what the problem is and what it'll take to fix it.
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.
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.