hello

can somebody tell is there been tpi models w/o O2 sensor???

cause i looked to my ECM connector+ harness and in ECM D7 and D6 positions are empty and in harness there is no purple / tan wires. car is camaro -87, 5.0 l .

 

Every TPI car, regardless of the year, has an oxygen sensor. Take a look at your driver's side exhaust manifold down at the collector, where it bolts up to the y-pipe. There should be an oxygen sensor there, with one wire leading to it.

 

d7 ppl on a 1227165 ecm

 

hello

yes i have there o2 sensor, but i wondering that why there is no wires in engine room and no in connector to ecm and harness looks like that nobody haven`t cut these purple and tan wires away.but if somebody cut/remove wires should i get error code from ecm .can it be possible that my car is export model( i am from Finland)? my opinion is also that every tpi model use o2 sensor.but i asked my local dealer about this issue and they couldn`t give me any anserw.do you think that i go and buy new sensor and put new wires to ecm and there is no any problems to do this?

 

the car would not run properly without a oxygen sensor it will run rich and never go into closed loop. Is this some rh conversion?

 

what is rh conversion?? yes i noticed with my laptop that no closed loop signal and i have some idle problems what can lead to this o2 sensor failure

 

I didn't know if the car had been converted to right hand drive it was messed up than. I would install a o2 sensor and if you do not have a provision on the left side manifold you will need to do one downstream and use a heated oxygen sensor

 

but i have sensor there in driver side. main question is why there is no wires even in ECM harness.?and why i wont get error code or does o2 sensor give error code at all??

 

are you sure you are looking in the right cavity of the ecm connector. no feedback from a disconnected o2 sensor the ecm does not know its running rich or lean. sounds like you need to trace that purple wire starting at the manifold.

 

i looked from 32-pin connector and D-line positions D6 and D7 and these are empty and i couldn`t find these colours purple and tan wires .this connector should be right one i found pictures of it and explanations of postions. i checked whole harness and there is no any "extra" unplugged wires. that why i am here cause there is no any sense what i have seen in my car

 

Looks like you need to run a new wire than if you are unable too trace it back.

 

is it possible that somebody or orginally there is different PROM and ecm is not following o2 sensor at all.? cause i saw some prom identification table and there is some information exsample emission controls etc. what you think about that ?

 

a export would not have a smog pump. but there is no way to make it run good with no oxygen sensor. I can identify the tune off the 3 to 4 letters on the silver sticker on the ecm's chip.

 

ok. i will back with this issue tomorrow, i check the Prom id and send it here. Thanks for these anserws.

 

no problem

 

hello again .

now i looked the chip and found these numbers ABBK and 6046.
i hope these tell you something .

 

That broadcast code ( programing was used in the united states) It's not some wierd export that does not contain o2 functions. You will need to run a wire from the o2 sensor to the ecm.


bcc ABBK, year 1987, release31646 gm part number16066043, ecm1227165 scan id6046 6041 ,platformFB ,engine codeLB9 5.0, MD8 AUTO transmission

 

then i will do that. but still i am little bit confused that why there isn´t these wires and i am pretty sure that i am looking right connector. but thanks helping.

 

Check some of the pins like ECM power to determine your orientation

 

Did you ever figure this out ?

 

Hello Gents!

I´m new to this forum but I have been reading it already for a while. This post got my attention since I´m also From Finland and my problem is exactly as described above.

- O2 sensor in manifold, wire hanging free
- No wired to D6 & D7 pins in ECM connector and no PPL wire anywhere
- Same Prom as mentioned above


So I will pull a new wire from O2 sensor to D7 and pray... Yes, and I have also some issues with idle...