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Related Mitsubishi Questions
2003 Montero Pending Fault P0431 - Powertrain Warm up Cat
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P0421 reads: Warm up catalyst below threshold Bank 1. If
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Well, we just bought this 08 Outtie about a month ago
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I have a lancer 2003, i have a p0421 p0135 i change bank 1
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Peter Bagley
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I have a lot of codes. PO174, PO154, PO156, PO161, PO421,
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Doug
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Doug
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I recently received some excellent help regarding my 2001 Mitsubishi
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Eric
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Mitsubishi Galant: catalyst below threshold bank 2..sensors
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Doug
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Meet the Experts:

Doug

Doug

ASE Certified Technician

8,677 satisfied customers

Mitsubishi employed and Factory trained ASE certified technician

Chris (aka- Moose)

Chris (aka- Moose)

Technician

373 satisfied customers

24 years of experience diagnosing & repairing

George H.

George H.

ASE Certified Technician

321 satisfied customers

ASE Master tech 15+ years

Tim Mohr

Tim Mohr

ase master

230 satisfied customers

30 yrs foriegn and domestic, gas and diesel

Don - Mo Lurch

Don - Mo Lurch

Mitsubishi Mechanic

60 satisfied customers

16 years, Line Mechanic, Electronics trouble shooting, etc

AMD

AMD

Master Technician

48 satisfied customers

L1 Advanced Level Diagnostics Specialist

BigBob

BigBob

Service manager/Technician

46 satisfied customers

25 years in the auto repair business

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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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