code 33, runs like s***, aem uego. HELP!!! (video)

[seattlebmxs13]

alright so heres the story.

i parked the car at a buddies house and when i fired it up to drive somewhere it just ran like absolute crap, idle like s***, no power etc...

ecu is throwing code 33 (O2 sensor code) so i decided to toss in the new sensor and hook up my AEM UEGO wideband gauge at the same time.

I've checked quite a few different things and i'm pretty sure its still the o2 sensor (I reset the ecu and its still throwing the code). It also gave me a code 45 ( leaky injector) when it first started messing up, but i pulled the fuel rail, no leaks.

I guess the UEGO system might not be hooked up right but i dont know how. power and ground are fine and i'm running the white wire from the gauge to pin 19 on my ecu connector. I have tried all 5 modes on the gauge, no difference.

anyone know whats up? thanks in advance

I need to get this b**** running again so i can get emmisions done and go ka-t...

heres a link to the video, help much appreciated.

http://www.youtube.com/watch?v=FIFKo3_iiuk

Modified by seattlebmxs13 at 3:40 PM 4/8/2010

edit: car runs the same with the o2 sensor disconnected, so i think thats the issue. just cant figure out what i'm doing wrong.
Modified by seattlebmxs13 at 6:24 PM 4/9/2010

[Rev_D21]

Have you checked the engine with a vacuum gauge yet?

[seattlebmxs13]

have not done that yet. would a vacuum leak cause it to suddenly run like crap though? I'm pretty sure the issue is the o2 sensor because it runs exactly the same with it disconnected...

[seattlebmxs13]

well to update, i tossed in a new oem style universal sensor and hooked up all the stock wiring and I got nothing... still runs the same when disconnected too.

Shouldn't having the o2 sensor disconnected affect how it runs?

I also think I've found a dead injector, so I'll be replacing that once i get to the junk yard. Would this alone cause my problem? I tossed one of my new 550s in just to see what it would do but it didn't really seem to help anything. its definitely the injector though, I swapped it with the one next to it and pulling the harness on that one still did nothing...

[freerebel1993]

try advancing the timeing a little and check your fuel filter(blow threw it) and check the sock on the fuel pump

[Chris28]

The UEGO is a wideband, it shouldn't hook up to your ECU at all. Check your o2 sensor wiring with a multimeter.

[vocationalzero]

Did you put the uego in where the factory o2 was and throw the factory one out and leave the harness unplugged???