okrim Posted August 22, 2007 Share Posted August 22, 2007 I have a problem with my 93 ls400, 135k miles I recently replaced the MAF and the TPS, drove the car around for a while and it worked fine. The next day I tried to drive it, let it warm up and when I came back outside the CEL was on and the car was idling real low. I pulled the code and it was a 41 which is the TPS signal. I was wondering if it can happen where when you first start your car and it idles fine, but then when it warms up the TPS goes bad. I did go the wrong route in purchasing the TPS, I went to a lexus junk yard and bought it, could have been on its last leg. Quote Link to comment Share on other sites More sharing options...
okrim Posted August 25, 2007 Author Share Posted August 25, 2007 went and bought a new TPS, it will be here the 28th. I let you all know if it fixed the problem. thanks for the help again , this is an awsome forum. Quote Link to comment Share on other sites More sharing options...
okrim Posted September 8, 2007 Author Share Posted September 8, 2007 went and bought a new TPS, it will be here the 28th. I let you all know if it fixed the problem. thanks for the help again , this is an awsome forum. well, put in the new TPS, set it like I suppose to, but now it will only idle at 200 or less rpm. CEL is constanly on. I guess I have to start all over. Quote Link to comment Share on other sites More sharing options...
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