Newbie has question regarding custom tune
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Joined: Nov 2010
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From: martinsburg wv
Newbie has question regarding custom tune 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.
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. 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.
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. Thread Starter
Registered User
Joined: Nov 2010
Posts: 11
Likes: 0
From: martinsburg wv
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.
Thread Starter
Registered User
Joined: Nov 2010
Posts: 11
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From: martinsburg wv
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
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
Thread Starter
Registered User
Joined: Nov 2010
Posts: 11
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From: martinsburg wv
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.
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
https://ls1tech.com/forums/12064586-post7.html
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Thread Starter
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Joined: Nov 2010
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From: martinsburg wv
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)?
Last edited by williambmac; Nov 15, 2010 at 07:56 PM.
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Verdad Gallardo 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.
Thread Starter
Registered User
Joined: Nov 2010
Posts: 11
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From: martinsburg wv
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.
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.
