Well Ive been trying to figure out a weird problem my car has been having. It's not an f-body, its a b-body with an LT1. I have started a post on the impala forum so i dont have to retype everything thanks. hey bud,

http://www.impalassforum.com/vBullet...d.php?t=204841


Thanx

 

check all of your injecter wires make sure thier all clicking i just solved my problem this way i had one dead cylinder because of broken connection and the computer was running the other 3 the the same side extra rich .heat does wonders to these harnesses.

 

My car doesn't have a miss. The left side O2 goes in and out of ready mode and makes it go in and out of open and closed loop. On my datamaster screen it shows that the left O2 is reading 453mv but is actually more like varies from 700-900mv.

 

Why not "copy and paste" your original post from the other forum. I think you'll find not many people are interested in going to another site.

 

Here is the latest hope this helps.Well I got another pcm tuned for my car and the same thing is happening. The left O2 is not going into ready mode(which wont let it go into closed loop) and the pcm is displaying a reading of 453mv. So I started doing some latenite voltage testing/ wire checking. Before I started checking the wires, I checked the voltages at the left O2. With the O2 plugged in, these are the voltage i got: blk-.02v, pnk-13.8v, ppl/wht-1.4v and climbing, tan/wht-1.4v.So I unplugged the O2 the check it, both grounds were .02v, high signal was about 700-835mv and the low signal was .03v. Then I checked the harness side, pnk-13.8v, blk-.02v, ppl/wht-835mv, tan/wht-1.4v. Some more info when the car did go into closed loop for a few moments and i gave it gas the left side loaded up fuel the short term ft would stop at +50%. Please help me, This one is a real MIND BLEEP.THANXps. i have torn apart the wiring loom and the wires for the O2's are good, no short to power or ground and no burns.