OK heres the codes im throwing while under boost and normal driving. The p0135 is a Bank 1 sensor 1 02 sensor heater circuit and the p0130 is a bank 1 sensor 1 02 sensor circuit malfunction. Heres the weird thing. MY a/f ratios are all over the place while cruising. They go the whole way down to the 10.0's when i just get on the gas a little bit and dont go into boost but when i go into boost the just back up to my normal 12.3-12.5 range i have my cartech set to. Im not sure if i blew my 02 sensor and its causing me to run rich under normal driving or what but its starting to get to me and i want to get it fixed asap. Anyone think the 02 sensor could cause it or maybe something else.
i had this exact problem, threw both codes, i unplugged my ecu wires and it fixed it somehow. now my car pulses while going down the road and slowing down, it doesnt sometimes lol. since i been in boost ive had weird crap happen like this and then one day it will go away.
ill answer for myself on this as well, i have a straight pipe (hollowed out cat), we both need HPT i think, well i hope that can fix some of my problems.
I am getting lean code P0171 currently without a cat in my exhaust. Just installed a Magnaflow cat and have yet to test it out. Ill let ya know if it solves these codes. I have not seen the 130 or 135 code with my 02 eco. Just thought I'd add my 2 cents..
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this is nice, today i start the fire up and it throws immediate 300 code (multiple misfire), AND i erase that and later in the day it threw a 507 which is idle rpm higher than expected i think off the top of my head AND the car is pulsing again, when i pull into a parking lot and give it like 3 seconds of 1/4 throttle and let off it goes, blah, then catches it self and i hear the charger whine as its idling, doesnt sputter though, damn this built engine, damit to hell!
Yea i have a magnaflow cat. Its kinda of like saying the a/f ratios go by how hard you step on the gas weather it be a small amount of pressure or alot. I mean i can get on the gas to the point where im at 14.7 all the time but if you just tap the gas a tiny bit more it goes to like 12.5 or lower. IM going to try to unplug the ecu adn see what happens. If worse comes to worse im going to the the sensor and harness thing and get the reflash from gm.
wideband all over the place during partial throttle?
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I wouldnt say all over the place but the a/f ratios are going with how hard i press the pedal and not by WOT and cruising like they used to. IM thinking its the computer or the 02 sensor. Any other clues what it might be?