O2 Sensor Help with HP Tuners!
O2 Sensor Help with HP Tuners! Alright guys well i have been having a problem with my bank 2 sensor 1 O2 sensor. At WOT bank 1 reads 851, and bank 2 reads 56.... im pretty sure this is causing my car to knock on hard pulls... We have been reading all of this on HPTuners also... Any ideas?!
At wot you cannot use your narrowband sensors as an accurate reference really. But it does sound like you are way off on one side or the other. The problem is, its hard to tell which one is off unless you use a wideband to check each bank.
Well, it could be that bank 2 is lean due to your tuning to compensate, or it could be that bank 1 is rich due to your tuning as well. Whenever I have this problem, I usually check spark plugs, then rockers, then wire, then coil packs then exhaust. A good sized exhaust leak can cause this to be off as well, but remember, when you go WOT, the O2 sensors have NO input. They are just a reference then. You are running off of MAF, VE, PE or a combo of those 3.
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Verdad Gallardo well when the sensor wigged it would cause my car to like misfire kinda like and running super rich when wot i dont really notice it much but 3/4 throttle i can feel it and ses light turns on.... when unplugged the car runs fine in general(defaults to 500 or something like that!)
well then there is possibly something else wrong. if the O2s were bad, then they can mess up plugs too. With a good set of plugs and O2s, there should be a very very very minimal different in the ltfts while driving. If they are opposite, there is a problem, and if they are way off, there is a problem too.
alright sorry for taking so long to get back but i got the O2 sensors replaced and swapped plugs and wires... so far i have not had a problem but i havent had it hooked up to hp tuners yet....
Thanks for the input guys...
Thanks for the input guys...
