I just recently had my Turbo Replaced and the shop found one leak in the vacuum system but I'm still having the issue. I noticed yesterday after they fixed the vacuum leak on the PCV breather hose. Tested the coil packs and they are in good shape. After the shop replaced the dipstick tube and checked for anymore leaks in the vacuum system. Car was at the shop and ran fine they test drove the car and didn't have any issues while running in stock mod with 3bar FPR. I went to pick up the car that night still in stock mod drove home about 25 miles and no issues until about 5 miles from home when it went back into limp mode. Only thing I noticed when it happened I was accelerated and the boost spiked to 13psi and dropped back to 10psi. Scanned and confirmed P1128 code. nothing else listed. So I double checked and reset the ECU again and drove it around and no code. The next day I drove to work and sure enough in traffic it went into limp mode again while I was accelerated. So I'm thinking the ECU thinks boost is to high so I swapped out the FPR for 4 bar and turned the Revo Software on after resetting ecu. Ran good until I accelerated and had the revs up passed 4k where it started to break up and than the ECU cut timing and boost. I let off and went to lower RPM and it was fine but if I started to get to the upper RPM range it would loose it again this time it gave me a the P1128 code again but no misfire code. So I reset the ECU while I was driving and ran it up to the higher RPM this time right after clearing the codes and it ran fine since it still figuring out the fuel mapping. As soon as it gets a base fuel map it goes back to running rough in high RPM and idle it runs rich and when I go to accelerate I see the carbon cloud behind me.
Anyone have any suggestions???
I may try running the 3bar FPR tonight and see if the car runs any better on the program.
Mods: Revo stage 2 software with SPS controller, GHL DP 3", Tryol Sport SMIC, 4 bar FPR, AIG filter, Forge TIP, AWE boost gauge, EIP Dog bone, Milltek 2.5" Cat Back Sport Exhaust with Resonator ( res currently off )
. (currently running PFR7B NGK plugs)
