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Trackoff Light/engine Light


Olando

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(this is a repost, but covers yours)

That could be so many things. You need to start with how your car is acting, and do some deductions from that.

Just from that code (25), it could be the IACV, a vacuum leak, bad pcv valve, dirty/bad injectors, dirty air filter, exhaust leak, bad maf, bad O2 sensor, broken/open dipstick plug, fuel pressure loss somewhere, or simply bad gas (too much moisture in your fuel lines).....

To check IACV. Have car warmed up and at idle. Turn the steering wheel. Does it almost stall?

To check vacuum leak. Buy a can of Brake Cleaner and gently spray your hoses while the car is running. If idle changes then you found your leak. Do the same for the pcv valve.

To find an exhaust leak. Seafoam the car through the brake booster. When its time to turn on have someone check the exhaust pipes for white smoke. That'll tell you where the exhaust leak is at.

To find out if its the injectors. Reset the ecu and let the car warm up. When it's fully warm is the idle really really low? Does the car shake a little?

To clean the maf. Since your car is a 92-95, clean it with compressed air, electric parts cleaner, or VERY gently with alcohol. Do not use the hotwire maf cleaner from the store.

It's easy to check the filter/gas...

To check the O2 sensor, this would be the last thing to look at. (Process of deduction) If everything else is good then it might be the O2 sensors.

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