LimpMode
New Member
- Joined
- Sep 4, 2019
- Messages
- 4
- Reaction score
- 2
- Location
- Detroit MI, USA
- VCDS Serial number
- HC165372 (2nd hand)
Slight Background:
Was told turbos were failing and that they would die soon and that is why my CEL was on and the car didn't feel like it had the right power. Fast forward to now, 4 yrs later.. replaced turbos myself to find that the old turbos were being held on with half-of-one bolt on both sides (so basically the car was all motor for the last 4 years, I guess those piggy pipe weren't as loud as i though they were...) a list of recent repairs and mods are below. Car is now running, better than it has in years, smooth and feels good, no CEL, but feels under-powered. Will randomly "wake-up" where it pulls like a freight train and then goes back to what I believe is limp mode.
Took some logs (links below) and I notice that I never really get more than 1450mbar (which to my understanding is really just 450bmar after accounting for atmospheric pressure). Which puts me at 6.5psi
Its driving me nuts that I can't figure out whats going on with this car, there are no CEL, I preformed the readiness procedure passed everything, gas consumption is a little heavy in my opinion but I have been doing quite a lot of WOT logging so I can't tell if that is a symptom or not, as far as I can tell she is running really well but not boosting as she should be. As of right now I have no idea what I should look into next or try to do to diagnosis it further. I may try and make a smoke machine and try to do another boostleak test this weekend.. I really hope someone on here has some insight.
Not proficient with VAG-COM logging yet in how all the values work together so please excuse any ignorance on my part, please set me straight... I'm here to learn.
Also maybe worth mentioning: Was a high altitude car (Denver CO) and I now live at sea level. Not sure if that will mess with the tune but I thought I'd say it just in case.
List of Mods:
EPL Stage 1 tune (bought with car, never confirmed other than a reputable shop in CO telling me that it is in-fact a stage 1 tune)
2.0t coil conversion with ICM delete
Piggy pipes
XS power SMIC with silicon fittings <--probably going to go back to stock in a month or so as fitment is something left to be desired
Upgraded mounts all the way around
Single mass flywheel conversion
List of recent repairs:
Head Gaskets (and all the things that go with it, i.e valve cover gaskets, cam seals, etc)
replacement K03s with new CHRAs and hardware
Timing belt & waterpump
OEM RH Boost lines
New Clutch
Both Sensor 1 (upstream) Oxygen sensors
Diagnosis in order performed:
boost leak test - None found
MAF O-ring missing -replaced
Brake booster grommet deteriorated- replaced
Swapped MAF and MAP with known working car- No Change in performance, logs are essentially the same
AutoScan: https://drive.google.com/open?id=19QKJO8MgEoBEO4ecI2QBmUOEgFHbCB_Y
Vag-Com Logs (4runs): https://drive.google.com/open?id=1N6M7yfHejjLKgKgiNZw6a2OtroZTgMgk
Readiness log: https://drive.google.com/open?id=1e9w3UrOg4rbCWbdFFb6oLz6_krA2_lt6
Was told turbos were failing and that they would die soon and that is why my CEL was on and the car didn't feel like it had the right power. Fast forward to now, 4 yrs later.. replaced turbos myself to find that the old turbos were being held on with half-of-one bolt on both sides (so basically the car was all motor for the last 4 years, I guess those piggy pipe weren't as loud as i though they were...) a list of recent repairs and mods are below. Car is now running, better than it has in years, smooth and feels good, no CEL, but feels under-powered. Will randomly "wake-up" where it pulls like a freight train and then goes back to what I believe is limp mode.
Took some logs (links below) and I notice that I never really get more than 1450mbar (which to my understanding is really just 450bmar after accounting for atmospheric pressure). Which puts me at 6.5psi
Its driving me nuts that I can't figure out whats going on with this car, there are no CEL, I preformed the readiness procedure passed everything, gas consumption is a little heavy in my opinion but I have been doing quite a lot of WOT logging so I can't tell if that is a symptom or not, as far as I can tell she is running really well but not boosting as she should be. As of right now I have no idea what I should look into next or try to do to diagnosis it further. I may try and make a smoke machine and try to do another boostleak test this weekend.. I really hope someone on here has some insight.
Not proficient with VAG-COM logging yet in how all the values work together so please excuse any ignorance on my part, please set me straight... I'm here to learn.
Also maybe worth mentioning: Was a high altitude car (Denver CO) and I now live at sea level. Not sure if that will mess with the tune but I thought I'd say it just in case.
List of Mods:
EPL Stage 1 tune (bought with car, never confirmed other than a reputable shop in CO telling me that it is in-fact a stage 1 tune)
2.0t coil conversion with ICM delete
Piggy pipes
XS power SMIC with silicon fittings <--probably going to go back to stock in a month or so as fitment is something left to be desired
Upgraded mounts all the way around
Single mass flywheel conversion
List of recent repairs:
Head Gaskets (and all the things that go with it, i.e valve cover gaskets, cam seals, etc)
replacement K03s with new CHRAs and hardware
Timing belt & waterpump
OEM RH Boost lines
New Clutch
Both Sensor 1 (upstream) Oxygen sensors
Diagnosis in order performed:
boost leak test - None found
MAF O-ring missing -replaced
Brake booster grommet deteriorated- replaced
Swapped MAF and MAP with known working car- No Change in performance, logs are essentially the same
AutoScan: https://drive.google.com/open?id=19QKJO8MgEoBEO4ecI2QBmUOEgFHbCB_Y
Vag-Com Logs (4runs): https://drive.google.com/open?id=1N6M7yfHejjLKgKgiNZw6a2OtroZTgMgk
Readiness log: https://drive.google.com/open?id=1e9w3UrOg4rbCWbdFFb6oLz6_krA2_lt6
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