williambmac

I have a 2001 camaro with some aftermarket goodies (cam, afr heads,kooks header,msd). However I am running into a problem. Ever since I had the work done, I keep getting a p0135 bank 1 sensor 1, p0162 bank 2 sensor 2 heater circuit, I have replaced both o2, checked the eng sens fuse, checked all of the wiring and grounds back to the pcm, all o.k.
I am also having a problem with the reverse lockout solenoid on my t56 trans, it's constantly engaged. I always need both hands to get it into reverse.
I checked power to the soleniod, o.k., but the ground path back to the pcm appears to be the problem, no broken wires.
The ground path is activated by the pcm, that is what activates and deactivates the solenoid, correct?
My question is the guy that did the work to the car also did custom tuning to it. He did alot of modifications in the computer. Could he have shut anything off in the pcm that would create these problems. I am not that knowledgible with the computer tuning, but I know he did something with the skipshift and I believe they are on the same ground circuit.
Anyone have any ideas. I have spent alot of time going through the wiring, checking grounds, ohming stuff out and checking continuity but can't find anything wrong. Thanks.

Mister Gray

iTrader: (1)

I'd ask for my money back and get a new tuner....

williambmac

Aside from the obvious......can you shut off the reverse lockout when doing a custom tune.
The car does run really well aside from these two issues.
I have also heard that lt headers can cause O2 sensor heater issues.

DynoDR

iTrader: (1)

And why is that?

williambmac

Did a search here, numerous threads stating that long tube headers do not allow 02 heater circuits function properly.

https://ls1tech.com/forums/generatio...ough-tips.html

https://ls1tech.com/forums/generatio...blems-lts.html

https://ls1tech.com/forums/pcm-diagn...-p-0135-a.html

williambmac

Can anyone tell me if you can screw up the reverse solenoid circuit while doing a custom tune. My reverse solenoid is enabled and I have a very difficult time getting the car into reverse. Thanks.

2xLS1

iTrader: (25)

No a tune cannot screw up the reverse inhibit. Check the 12V again. The O2 heaters and reverse inhibit solenoid are powered off the same circuit. (Eng Sen)

https://ls1tech.com/forums/12064586-post7.html

williambmac

I have checked voltage at the pink wire and I get 11.87 volts key on. Zero volts key off.
I have checked the ground wire from the connector back to the pcm @ circuit #44 and it is good. Could it just be that the pcm is bad?
I am starting to beat my head on this one. Everything leads me back to the pcm. The pcm enables the ground circuit to deactivate the solenoid correct (unlocks reverse)? It then opens the ground circuit to activate the solenoid (locks out reverse)?

2xLS1

iTrader: (25)

I may be wrong about what I said about your tuner not being able to screw up your reverse inhibit. I never noticed it because I have never changed those settings, but looking at a 01 M6 cal with HP Tuners there are reverse lockout settings. Perhaps he changed those thinking he was disabling the Skip Shift which are on the same page. These are the stock settings for the reverse lockout.

williambmac

Thanks alot. I will show this to the tuner and have him hopefully make adjustments to correct this. I was really getting frustrated over this.

Mister Gray

iTrader: (1)

Merely busting chops everyone

williambmac

2xLS1.......Thank you for the info. It corrected the problem.
Now I just need to deal with the o2 heater codes that won't go away.

2xLS1

iTrader: (25)

http://www.gearchatter.com/viewtopic9158.php

Frost

iTrader: (45)

wow you had to tell your tuner how to fix the reverse lockout issue that he caused??