Question about 2006 Isuzu i-280
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Posted on Jan 02, 2017
Without knowing the specific code, I will assume it relates to an inefficient catalytic converter. At this mileage it could very well mean that the catalytic converter is failing to do it's job and needs to be replaced. The computer sets this code when it sees a signal from the rear O2 sensor start to change in time with the front O2 sensor. It should not. If the cat is working, The rear O2 sensor should have a stable output as the cat is supposed to be removing all the oxygen from the exhaust. Sometimes this code will set if the spark plugs or the engine's state of tune has deteriorated and is producing more emission than the cat can handle, the rear O2 sees the overflow and assumes the cat is bad.
At your present mileage, I would strongly suggest changing the spark plugs if they have not been done in the last 20,000 mi. Have the light reset and drive it to see if the code returns. If it does, replace the catalytic converter. I suspect that you do need a cat, but I view the spark plugs as maintenance, and I wouldn't want to put a brand new cat in without the assurance that my old plugs were not going to damage the new one.
Hope this helps,
Posted on May 19, 2009
you can bring your vehicle to autozone or your local parts place for a "free" computer scan where you can then recieve the diagnostic trouble codes and address the issues at hand
Posted on May 27, 2009
You probably need a camshaft position actuator solenoid. 12597025 is the gm part number and its on the passenger side of cylinder head at the front of engine. They gave trouble when they first came out with this engine on this gm built truck. See www.myisuzuparts.com for a picture.
Posted on Jul 08, 2009
When you press the car's brakes Follow the truck
Isuzu A vibration in the front of the car
What is the solution to this problem happened after the change of Brake Linings
Posted on Nov 12, 2009
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