Help! ecu wideband hookup into wideband

I need to know what wires go to my aux on my PLX wideband coming from my stock ecu, my car suddenly dosnt run right and I dont understand why?

I am putting on my flame suit here, i have been running without a o2 sensor hooked up to my ecu for a week or so, I have a wideband to moniter afrs and suddenly my car runs so pig rich that it wont even idle without being floored:eek3:

I have checked every possible connection to my engine for leaks of air/vac and nothing.....

 

did the PLX come with a pinout diagram? or is there an online forum where can get a pinout?

When I wired mine up to the stock ECU I had to go on the Innovate forums and ask which wire was the correct analog output.

 

now the car dies from no vac when the brake booster is hooked up...... when you un plug it the car has enough vac to run, but the wideband is still pegged rich.

 

unplug your TPS sensor, see how she runs then.

 

it stalls.

any suggestions?

 

when I un plug the maf, it smoothes out and runs fine for about 20 seconds then stalls


could it be my maf?

 

help bump!

Anyone got an idea?

 

unplug your maf AND your IAC, it should run then.

 

when I do that, it has plenty of vac and runs fine, I mean crappy, but better

 

so are we thinking its the IAC or MAF?

 

from what the legacy repair manual says...it could be the MAF

 

So... you need a MAF or IAC... :biggrin:

 

my guess is MAF from running without a damned filter forever.

 

Come on by with those heads and i may be able to find a MAF

 

Ive got a standalone on the way mods can sweep this thread under the rug