Cereal_Killer Posted November 8, 2009 Report Share Posted November 8, 2009 (edited) I am having some troubles with my truck recently and one of them is that my WB is contradicting my NB and my fuel trim, its reading 18+ AFR when the NB is reading 700+mV and fuel trim is pulling fuel, the plugs read okay and it seems like it wold be popping out the intake at 18+AFR. I'm trying to find someone that uses the same sensor so I could bring them my sensor and have them put it in their car and see how it reads. Let me know if your down, I will come to you. The sensor has only been in the exhaust for about 5k miles with regular fuel and I have taken it out to look at it and its not too sooted up or anything, I cleaned it up and put it back and still the same thing. Edited November 8, 2009 by Cereal_Killer Quote Link to comment Share on other sites More sharing options...
rl Posted November 8, 2009 Report Share Posted November 8, 2009 A rule of thumb is that if BOTH stock 02's agree, are within 5% or so of each other, and OFF from the wideband by a large margin, than the wideband would be suspect. The Bosch sensor is a good sensor however. I have a wideband that uses one. Now, if the stock 02's are in the header and the wideband is downstream in the H/X/Y pipe an exhaust leak, or being behind a cat, could cause some issues. Unlike the NTK sensors (which are better) when the LSU fails it starts to drift lean. The NTK's typically just fail. Quote Link to comment Share on other sites More sharing options...
Cereal_Killer Posted November 8, 2009 Author Report Share Posted November 8, 2009 I only have 1 NB, it and the WB are just inches apart, a few inches behind the collector. Quote Link to comment Share on other sites More sharing options...
rl Posted November 8, 2009 Report Share Posted November 8, 2009 Try another sensor. They are ~$50 at advanced auto. Some widebands do not control the heater well and will kill sensors in shorter than expected intervals. What kind of controller is it? Quote Link to comment Share on other sites More sharing options...
Cereal_Killer Posted November 8, 2009 Author Report Share Posted November 8, 2009 an AEM UEGO Quote Link to comment Share on other sites More sharing options...
Mattsv8 Posted November 8, 2009 Report Share Posted November 8, 2009 i have a autometer wideband it the first one was bad out of the box. this one is bad now. Quote Link to comment Share on other sites More sharing options...
Craig Posted November 9, 2009 Report Share Posted November 9, 2009 I have seen this, but have never seen it done in person. You may want to try it. http://www.youtube.com/watch?v=1mb4VmDd0ao&feature=player_embedded# Quote Link to comment Share on other sites More sharing options...
spoolin_s14 Posted November 12, 2009 Report Share Posted November 12, 2009 I have seen this, but have never seen it done in person. You may want to try it. http://www.youtube.com/watch?v=1mb4VmDd0ao&feature=player_embedded# awesome find Quote Link to comment Share on other sites More sharing options...
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