HELP!(Check engine/Traction control light) Need info/advice/knowledge on IS-F problem
#1
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So, I'm looking into buying an 08 F from a non-Lexus dealership. The problem is, the check engine light and traction control lights are both on. ![Uhh...](https://www.clublexus.com/forums/images/smilies/1387914497.gif)
Now the dealer has had an electrician in, and he states that the ECU is not grounding the o2 sensors (even after replacement of the sensors). Other than that, the car apparently checks out perfectly. After the engine light gets cleared, the traction light clears as well. He also said that there was an aftermarket exhaust on it that they replaced with an OEM IS-F exhaust, which he stated the shop said may have contributed to the problem. Why would this be happening? How big of a problem is this? Any info or advice on this would be helpful.
![Uhh...](https://www.clublexus.com/forums/images/smilies/1387914497.gif)
Now the dealer has had an electrician in, and he states that the ECU is not grounding the o2 sensors (even after replacement of the sensors). Other than that, the car apparently checks out perfectly. After the engine light gets cleared, the traction light clears as well. He also said that there was an aftermarket exhaust on it that they replaced with an OEM IS-F exhaust, which he stated the shop said may have contributed to the problem. Why would this be happening? How big of a problem is this? Any info or advice on this would be helpful.
Last edited by ISF117; 12-10-12 at 02:06 PM.
#6
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I would not take the car as long as the codes are coming back. I think you may want to find a different car. You could get stuck with a reoccurring problem which would suck
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#8
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Anyways, dealer says he believes the headers are still installed from before. Could this be it?
#12
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Yeah I'm being cautious. I'm just looking into it, because if this is the only problem, then I might get a good deal. But if I get the feeling that something else is going on, then I'm out asap.
#13
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Don't take the dealers word as gospel. If he says I think the headers are still there I would physically check and run the codes yourself. You can get a cheap OBD II reader for like $40 or even rent one. If it is caused by the supposed headers ask he dealer to put in the resistors. This way your not buying any problems.
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