Code 44 wont go away, happens when car is at operating temperature, runs great when cold. I have posted this before but still having problem, just havent had much time to work on it until today.

Here is what I have done.

New O2 sensors
Swapped injectors from side to side
New plugs and wires
Removed throttle body and cleaned thoroughly including IAC
Tryed another PCM from friends car
Compression test
Checked for proper vacuum
Adjusted valves
Made sure grounds were tight and clean
Intake elbow fine
No exhaust leaks
Checked fuel pressure

I have read Injuneers Scanmaster write up, here is my problems.

LP 3.5
RP 1.3
LBL 160
RBL 108
LIN 193
RIN 113
IAC 69

Any help is appreciated. Also note car is stock except for headers, K&N intake and 1.6 rockers.

 

Assuming your talking about an OBDI car and you had the problem before you changed the O2, your problem is the purple/ white wire going to the left O2 is shorted to ground.

Time to get out the DVM

 

Thanks I will check that tomorrow, anyone think it could be MAF sensor problem even though no code for that ?

 

DTC 44 is an OBD-I code.... no assumption necessary.

This is definitely more than a simple "one side" problem. You have the worst possible case of "split BLM's". Something is screwing up both sides..... one too rich and the other too lean. I'm surprised you aren't also getting DTC 65.

What Cell is the BLM data from? Can you get the data from the rest of the Cells?

 

These readings were taken with Cell at 16, right now having terrible storms here so tomorrow I will check and see if I can get some other readings from other Cell's.
Thankyou for the reply.