[joec500]

I have been running the Canbus Maps for about a month without issues, but since my last fill up I have been experiencing rough idles and P112D Error (o2 sensor) and a Lean Running (P0174). Took out my tune and everything runs fine...I am thinking this could be a bad batch of gas causing this? Has anyone else experienced this, I am assuming the refineries are switching to Summer Formulas??

I am in Northern California running Only 91 Chevron Craptane or Maybe the o2 sensor is crapping out causing the lean condition?

[joec500]

bump

[OpenFlash]

Far more likely to be a bad o2 sensor. Replace the one throwing the code and both codes should go away.

[DMETune]

Originally Posted by joec500

I have been running the Canbus Maps for about a month without issues, but since my last fill up I have been experiencing rough idles and P112D Error (o2 sensor) and a Lean Running (P0174). Took out my tune and everything runs fine...I am thinking this could be a bad batch of gas causing this? Has anyone else experienced this, I am assuming the refineries are switching to Summer Formulas??

I am in Northern California running Only 91 Chevron Craptane or Maybe the o2 sensor is crapping out causing the lean condition?

Originally Posted by shiv@vishnu

Far more likely to be a bad o2 sensor. Replace the one throwing the code and both codes should go away.

So he removes the piggy and the codes go away, and this says to you that he's got a bad O2 sensor?

[joec500]

Originally Posted by Railgun

I had the same code pop up on me before I enabled the O2 sim on the procede in addition to cat efficiency codes. Whether legit or not, I can't say.

Railgun, are you running aftermarket downpipes? I am wondering if I should try this too? Either way the tune is staying out since i have a maintenance visit coming up.

[OpenFlash]

Originally Posted by DMETune

So he removes the piggy and the codes go away, and this says to you that he's got a bad O2 sensor?

Oh sorry DMETune, I didn't see that part.

joec500-- Are you running aftermarket dps? Or an o2 sim (software or hardware based)

[joec500]

Originally Posted by shiv@vishnu

Oh sorry DMETune, I didn't see that part.

joec500-- Are you running aftermarket dps? Or an o2 sim (software or hardware based)

No....All stock...

[OpenFlash]

Originally Posted by joec500

No....All stock...

In that case, just unplug the one PROcede subconnector that intercepts all the o2 sensors. It's the yellow wired subconnector. Just slide the original subconnector back in. You will be running with stock AFR targets which isn't ideal for power but at least it will eliminate variables. If the problem persists, it's going to be an issue with your o2 sensor. If it doesn't, then it's going to be an issue with either the PnP harness (loose wire?) or the PROcede itself (but that is unlikely given how it occurred). But all of them are easy to solve.

Shiv

[joec500]

I will try that as soon as I get my A/C fixed.

[hun77777]

i have same problems/simptoms on my last dynos. car was running lean. my codes were p114B and P114D and P0174 i believe... answer that i got was that i should've install the remote key fob thingy which i didn't and procede might've been confused between which maps??? also i adjust o2sensor value from 100% to 80% on stock dp... lucky, since then, codes went away... i don't know if that means my car is running ok or if it just tricks signals not to turn CEL on, yet still running lean...

soon, i'll be putting IC and DP in, if i change to stage 3 map, will this problem most likely go away since that's for completely catless?

[joec500]

Originally Posted by hun77777

i have same problems/simptoms on my last dynos. car was running lean. my codes were p114B and P114D and P0174 i believe... answer that i got was that i should've install the remote key fob thingy which i didn't and procede might've been confused between which maps??? also i adjust o2sensor value from 100% to 80% on stock dp... lucky, since then, codes went away... i don't know if that means my car is running ok or if it just tricks signals not to turn CEL on, yet still running lean...

soon, i'll be putting IC and DP in, if i change to stage 3 map, will this problem most likely go away since that's for completely catless?

Did you also get a rough Idle?

[hun77777]

yes... randomly... seem to do it more on cold start...

[joec500]

UPDATE:

So I just got my car back from the dealer for and A/C issue. I re-installed the PROcede with newest firmware and 5/29 MAPS...Everything runs great, went for a nice 40 mile drive to make sure and sure enough no issues (knock on wood).

My guess to the issue is actually a loose connection to whichever loom intercepts O2 sensor signals, because I used to get the same error codes with my rev I PnP as well, but whenenver I uninstalled and re-installed, everything works great.

Now I just need to find out which wire manipulates that signal and double check that connection probably tighten the female pin up.

[TheAcAvenger]

Hmmm, I'm throwing the same codes. Around an hour of highway driving following the switch from Rev 2 to Rev 1.

Shiv, is this problematic other than the light? (AKA, should I check connections immediately? or is this something that can wait til the weekend)

[TheAcAvenger]

fixed: lowered the o2 modifier down to 77%