Hey everyone, I’ve searched for countless hours on possible solutions for this CEL code but I need some advice.
2013 gti, awe turboback exhaust, unitronic stage 2, unitronic intake, r8 coilpacks, new spark plugs, new pcv, 117000km
I’ve have had zero issues up until a week ago. I had surging rpms and replaced my pcv valve because I figured the code was because of that. After replacing the pcv, the surging stopped, I cleared the code and it reappeared after a day.
On idle my vacuum is reading 10-12psi vacuum, boost is ranging between 18-20psi which is what I’ve always been having. I do not have vagcom (I’ve been reading it using the dash command app).
Under WOT, I am hearing a new noise around the front passenger side. Almost sounds like the turbo is shuttering and it sounds a bit louder than usual (yes it sounds nicer but it’s not normal). I thought it was a loose downpipe leak around the first o2 sensor but I took it to the mechanic and there was no leak at all.
My mileage has reduced ever since I got this code. (Usually get around 600km per tank) but now I’m barely hitting 500km and I do not have a heavy foot.
My next guess would be the o2 sensor that’s right after the turbo on the downpipe but I’m not too sure anymore on what else to look for.
I do not have any other codes, no misfires, no surging rpms, vacuum/boost seems okay...I’m stumped.
My mechanic suggested to replace the o2 sensor on bank 1 because that could possibly be the air fuel ratio sensor? (I don’t know).
Have not done carbon cleaning or throttle body cleaning yet either.
Any help is greatly appreciated!
2013 gti, awe turboback exhaust, unitronic stage 2, unitronic intake, r8 coilpacks, new spark plugs, new pcv, 117000km
I’ve have had zero issues up until a week ago. I had surging rpms and replaced my pcv valve because I figured the code was because of that. After replacing the pcv, the surging stopped, I cleared the code and it reappeared after a day.
On idle my vacuum is reading 10-12psi vacuum, boost is ranging between 18-20psi which is what I’ve always been having. I do not have vagcom (I’ve been reading it using the dash command app).
Under WOT, I am hearing a new noise around the front passenger side. Almost sounds like the turbo is shuttering and it sounds a bit louder than usual (yes it sounds nicer but it’s not normal). I thought it was a loose downpipe leak around the first o2 sensor but I took it to the mechanic and there was no leak at all.
My mileage has reduced ever since I got this code. (Usually get around 600km per tank) but now I’m barely hitting 500km and I do not have a heavy foot.
My next guess would be the o2 sensor that’s right after the turbo on the downpipe but I’m not too sure anymore on what else to look for.
I do not have any other codes, no misfires, no surging rpms, vacuum/boost seems okay...I’m stumped.
My mechanic suggested to replace the o2 sensor on bank 1 because that could possibly be the air fuel ratio sensor? (I don’t know).
Have not done carbon cleaning or throttle body cleaning yet either.
Any help is greatly appreciated!