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Mitsubishi Endeavor LS: Need new catalytic converter. Check
Need new catalytic converter. Check Engine Light on. Diagnostic shows Code P0421. Automotive Repair said that my vehicle has 3 converters. I need to know which one to replace and where can I buy?… read more
Doug
Doug
ASE Certified Technician
Vocational, Technical or Trade Scho
8,677 satisfied customers
I have a 2006 mitsubishi galant 3.8 v6 with a service engine
I have a 2006 mitsubishi galant 3.8 v6 with a service engine soon light on.. Friend had a portable diagnostics mechanism, and showed the code p0421… read more
Doug
Doug
ASE Certified Technician
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Mitsubishi Eclipse GT: I received a P0421 error. I have changed
I received a P0421 error. I have changed all 4 sensors and reset the code, however, the service engine light continues to burn bright and when I check the code, it is the same one for the sensors that… read more
Eric
Eric
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N/A
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I have a 2006 Lancer and this code came up when trying to get
I have a 2006 Lancer and this code came up when trying to get my car inspected. (It was bought in Florida - no inspections there and now live in NY) The first repair shop I took it to told me I needed… read more
Doug
Doug
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Mitsubishi Eclipse GT: I have a 2007 Mitsuibishi Eclipse.
I have a 2007 Mitsuibishi Eclipse. The check engine light came on and was inspected by the dealer.He said I needed a PO 421 B1 catalytic converter. Unfortunately he does not have the part in stock. Ca… read more
Doug
Doug
ASE Certified Technician
Vocational, Technical or Trade Scho
8,677 satisfied customers
Mitsubishi Endeavor ls: My 2005 Mitsubishi Endeavor Ls check
My 2005 Mitsubishi Endeavor Ls check engine light came on recently and a friend checked it with a meter that showed p0421 warmup catalyst below threshold bank 1. When I called the dealer repair shop j… read more
Anthony
Anthony
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Mitsubishi Mirage LS: Hi there, My 2001 Mitsubishi Mirage
Hi there, My 2001 Mitsubishi Mirage 1.8, 2 door Coupe, recently had a P0421 code and two weeks later, it now has a P0401 Code. Is the P0421 and P0401 code related in the sense that if the catalalytic … read more
Doug
Doug
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Vocational, Technical or Trade Scho
8,677 satisfied customers
Mitsubishi Endeavor LS: I own a 2004 Mitsubishi Endeavor LS
I own a 2004 Mitsubishi Endeavor LS AWD. A few months ago, the check engine light went on and it gave me a P0431 code. After checking with my mechanic he told me the catalytic converter was bad. I did… read more
Doug
Doug
ASE Certified Technician
Vocational, Technical or Trade Scho
8,677 satisfied customers
Mitsubishi Galant: High! Just purchased a 2001 mitsibishi
High! Just purchased a 2001 mitsibishi galant 4 cyl with 180,000 mi on it. I had it smog tested at a "test only"station and it failed on the OBD II diagnostic test portion. It passed the emissions & v… read more
HondaPlatinum
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I have a 2007 Mitsubishi Endeavor with about 89,000 miles.
I have a 2007 Mitsubishi Endeavor with about 89,000 miles. A while back, the service engine soon light came on and sporadically went off and on. Basically, when I filled up with gas the light would co… read more
Doug
Doug
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8,677 satisfied customers
Mitsubishi Lancer Oz Rally: As I was getting on the freeway
As I was getting on the freeway my 2002 Mitsubishi Lancer Oz-rally automatic jerked as I accelerated. I'm not sure what the problem is.… read more
Greg
Greg
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2007 Mitsubishi Endeavor: diagram of the catalytic converters
Can you provide me a diagram of the catalytic converters on a 2007 Mitsubishi Endeavor. How do you know which one is bad?… read more
Doug
Doug
ASE Certified Technician
Vocational, Technical or Trade Scho
8,677 satisfied customers
lancer oz rally: 2 days later engine light comes on and spits..recall
just purchased a 2005 mitsu lancer oz rally. of course 2 days later engine light comes on and spits out a p0421 code. internet research indicates a pcm reflash recall. My question is considering a cat… read more
Eric
Eric
Retired
N/A
42,125 satisfied customers
2006 mitsubishi lancer es: my check engine light came on
OK I have a 2006 mitsubishi lancer es 2.0L. About 6 months ago my check engine light came on. I took it in and they said the Cat was bad. I had it replaced. Everything was fine until the other day the… read more
Doug
Doug
ASE Certified Technician
Vocational, Technical or Trade Scho
8,677 satisfied customers
Check engine light came on when I was..Misfire..cylinder
Check engine light came on when I was out of town daughter continued to drive. Three codes came up Misfire in cylinder 3, P0421 and P0421PD. Changed the plugs erased the code and at 30 Miles took it b… read more
Doug
Doug
ASE Certified Technician
Vocational, Technical or Trade Scho
8,677 satisfied customers
Mitsubishi eclipse gs: the converter..check engine light..autozone
I have an 01 mitsubishi eclipse gs and as you know the original headers are welded with the converter. Well i just bought a new header called spyder but they do not have the converter welded on. Well … read more
Doug
Doug
ASE Certified Technician
Vocational, Technical or Trade Scho
8,677 satisfied customers
Lancer: I recently had my 2002 mits..inspected..p0135..o2 Sensor
I recently had my 2002 Mits Lancer inspected and failed due to codes P0135 and P0421. I brought the car to a Mits Dealer and was told those codes meant I needed $1399 in repairs: An O2 Sensor (B1 S1) … read more
Doug
Doug
ASE Certified Technician
Vocational, Technical or Trade Scho
8,677 satisfied customers
2005 Mitsubishi Galant: The Check Engine Light Keeps coming on, and we
We bought a 2005 Mitsubishi Galant for our daughter. The Check Engine Light Keeps coming on, and we have had it checked a couple of different times, and they tell me that the code is for the catalytic… read more
Gary
Gary
Vocational, Technical or Trade Scho
15,858 satisfied customers
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Doug

Doug

ASE Certified Technician

8,677 satisfied customers

Mitsubishi employed and Factory trained ASE certified technician

Chris (aka- Moose)

Chris (aka- Moose)

Technician

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24 years of experience diagnosing & repairing

George H.

George H.

ASE Certified Technician

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ASE Master tech 15+ years

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Tim Mohr

ase master

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30 yrs foriegn and domestic, gas and diesel

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Don - Mo Lurch

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16 years, Line Mechanic, Electronics trouble shooting, etc

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AMD

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BigBob

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