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How can I troubleshoot at p0420 code with a OBD scanner that
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Acramstr! You assisted me with the following codes before
Hi, acramstr! You assisted me with the following codes before and they did not return after clearing them until now. Here are the codes: P0420 2 catalyst system efficiency below threshold, 26 Lateral … read more
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I have a 2007 Acura MDX that just failed emissions. I am
hello i have a 2007 Acura MDX that just failed emissions … read more
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I need to replace the catalytic converter on my 2003 Acura
I need to replace the catalytic converter on my 2003 Acura MDX, is easy to get to and replace? I live in California and I suspect there is one that is specific fo CA emissions, if you could give me a … read more
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MDX: . I got a p0420 catalyst efficiency Bank 1 code on my
. I got a p0420 catalyst system efficiency below threshold Bank 1 code on my wife's 07 MDX. I got a autoscanner and all the readings look the same between bank 1 and 2. Any ideas? I need to smog my wi… read more
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Hellow Neal: I have 2003 MDX and replaced the alternator
Hellow Neal: I have 2003 MDX and replaced the alternator a year back. As soon as I am out of garage, I got the code P0420 and P0430. The mechanic says that the Cats have to be changed. There were no i… read more
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crv: hello, not an acura but a honda question, I have a manual
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justinsbg
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Acura TL: How much should it cost to replace o2 sensors and
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Andrew
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2003 acura mdx: check engine light..engine light came..O2 sensor
2003 acura mdx, check engine light came on, code 420, replaced rear O2 sensor. Now check engine light AND VTM light are on. Possibly the front O2 sensor? I replaced the EGR valve a couple years ago wh… read more
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2005 acura TL: i need to replace bank 1 oxygen sensor
i have a 2005 acura TL, i need to replace bank 1 oxygen sensor. where is it located? How do you replace it? Is there more than one, if so do i replace both?… read more
Neal
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I change an o2 sensor on a 2001 acura rl. i got a p0420 code. Bank 1.
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BigBob
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sensor circuit..Catalyst system efficiency below Threshold
After diagnosis, the follow results came. What should I do now.(ie is what parts to change) 1, p0706---TRANSMISSION RANGE :sensor circuit range/performance 2, P0430 Catalyst system efficiency below Th… read more
MASTER TECH
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2004 mdx: has all cylinders misfiring..car runs great..o2 sensors
2004 mdx has all cylinders misfiring plus a code 0420 cat effiency. 155k miles and the car runs great. I just ordered rear o2 sensors. They've never been replaced. Figured they'd need to be sooner or … read more
Josh
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2001 acura: cyclinder..LITER..I HAVE A CHECK ENGINE LIGHT..p0420
I HAVE A 2001 ACURA INTEGRA GS. 4 CYCLINDER 1.8 LITER. I HAVE A CHECK ENGINE LIGHT ON THE DASH BOARD. I HAVE A CODE THAT I DO NOT KNOW WHAT IT MEANS....THE CODE IS P0420. CAN YOU HELP ME WITH THIS....… read more
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2005 Acura MDX: 000 miles..check engine light comes..diagnostic
This queston relates to a 2005 Acura MDX. with 85,000 miles. The check engine light comes on intemittently and my private mechanic says it is the oxygen sensor on the left side. This was determined af… read more
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2003 acura mdx: catalytic converters..000 miles..check engine light
is it normal to have to replace both catalytic converters in a 2003 acura mdx with 111,000 miles? Both the check engine light and VTM-4 light were on.… read more
Kyle N.
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2003 Acura MDX: VIN 2HNYD18903H531709 with 110,000 miles..Emission
I have a 2003 Acura MDX. VIN 2HNYD18903H531709 with 110,000 miles. Car failed Emission. DTC1 = P0420 - Catalyst sys Efficiency below Threshold (Bank 1) According to Forums, it is either O2 sensor or C… read more
ase_master327
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0420 code for catalyst below threshold bank1; changed both 02 sensors
I keep getting a 0420 code for catalyst below threshold bank1; changed both 02 sensors and the cat, any ideas?… read more
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N/A
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