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SuperDave, ASE Certified Technician
Category: Mitsubishi
Satisfied Customers: 1491
Experience:  over 16 years experience
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2001 Mitsubishi Montero Sport: engine misfire..check engine light

Resolved Question:

2001 Mitsubishi Montero Sport 3.0 liter has a engine misfire I replaced spark plugs and wires check engine light stays on what should I replaced next?
Submitted: 5 years ago.
Category: Mitsubishi
Expert:  Doug replied 5 years ago.

What codes are you getting from the computer?

Have you reset them and they return, or are you just waiting for them to go out on their own?

Customer: replied 5 years ago.
codes P0300 and P0443
Customer: replied 5 years ago.
Relist: Answer came too late.
Expert:  SuperDave replied 5 years ago.
did you clear the codes after the repair?
Customer: replied 5 years ago.
Yes I did clear the codes,it also sputters at times and slows down in speed
Expert:  SuperDave replied 5 years ago.

The most likely causes your code p0443 are Evaporative emission purge solenoid failed. Open or shorted evaporative emission purge solenoid circuit, or loose
connector. PCM failed

your code po300 is a random misfire.that could be cause by a bad pcm.

Customer: replied 5 years ago.
What is the pcm were is it located
Expert:  SuperDave replied 5 years ago.

the engine is located under the side panel by the passenger's foot area


SuperDave, ASE Certified Technician
Category: Mitsubishi
Satisfied Customers: 1491
Experience: over 16 years experience
SuperDave and 2 other Mitsubishi Specialists are ready to help you