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05-15-2008, 01:02 PM | #1 | |
AF Newbie
Join Date: May 2008
Location: Tampa, Florida
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Check Engine Light question
The Check Engine light came on in my 1999 4Runner and I took it to the Service department at the dealership. They called to inform me that the problem was the catalytic converter and it would need to be replaced--for $1500. I decided to try and have my neighborhood mechanic do the work instead for much less. When I called him for an estimate, I mentioned that the Check Engine light had not come on since I picked up the car, which had been 3 days prior. He said to wait until it did, then bring the car in and he could do the work for $900. As of the the Check Engine light is still off and it has now been three weeks. Was the original trouble a fluke and I don't need repair? I'm worried because I have long car trip coming up and I don't want to break down.
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05-15-2008, 08:49 PM | #2 | |
AF -Advisor
Join Date: May 2005
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Re: Check Engine Light question
If the CEL has not come back, i would not worry about it.
The OBDII system is not perfect, and can generate false codes.
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84 4Runner - ARBed 5.29s F&R, 4.7 & 2.28 t-cases, Chevys, AP x-over, BudBuilt x-member, 2" drv trn lift, 36" TSLs, 30 spline Longs 80 something p/u - Buick 231 V6/TH-350 trans, Holley 4 bbl, Weiand intake, dual batts, dual tanks ... 89 4Runner - stock 2000 Isuzu Trooper + 2010 Sonata |
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05-16-2008, 09:37 PM | #3 | |
Resident Chemist
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Re: Check Engine Light question
Even if you had a code for a bad cat converter, the odds are that it is the HO2 Sensor 2 which is at fault and not the cat converter. The ECM determines the quality of the cat converter by monitoring it with the HO2 sensor after the cat converter.
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