Jdirks3352
New member
Hello everyone. I have a weird issue with my ALH. So here the backstory.
I swapped my wife's originally 2.0 Golf over too a ALH from a Jetta. Don't recommend it anyway unless you enjoy tearing out the entire dash and swapping the entire wiring harness. Anyway we got it all back together and running great. During the process I noticed there was an excessive amount of oil in the intercooler as well as ton of carbon buildup from the EGR. I decided to swap the VNT-15 out for the 17 and deleted the EGR system. After getting all that installed I drove it home and everything seemed great. The next day we went to drive it and it immediately started making a ton more of the "Diesel Clatter" noise and had no power. I went in with VCDS and checked the injection timing and adjusted that slightly which lessened the clatter but not the power. I got a Stage one Malone tune to fix the EGR delete CEL and for the power gains and hoping that might help clear up the issue but no dice.
It's throwing these codes.
P1549 Boost Pressure Controle Valve (N75): Open Circuit / Short to Ground
P1144 Mass Air Flow Sensor Open/Short To Ground
P1252 Start Of Cold Start Injector Open/Short To Ground
Any idea where to start looking for the short and whether this would cause it to go into limp mode?
I swapped my wife's originally 2.0 Golf over too a ALH from a Jetta. Don't recommend it anyway unless you enjoy tearing out the entire dash and swapping the entire wiring harness. Anyway we got it all back together and running great. During the process I noticed there was an excessive amount of oil in the intercooler as well as ton of carbon buildup from the EGR. I decided to swap the VNT-15 out for the 17 and deleted the EGR system. After getting all that installed I drove it home and everything seemed great. The next day we went to drive it and it immediately started making a ton more of the "Diesel Clatter" noise and had no power. I went in with VCDS and checked the injection timing and adjusted that slightly which lessened the clatter but not the power. I got a Stage one Malone tune to fix the EGR delete CEL and for the power gains and hoping that might help clear up the issue but no dice.
It's throwing these codes.
P1549 Boost Pressure Controle Valve (N75): Open Circuit / Short to Ground
P1144 Mass Air Flow Sensor Open/Short To Ground
P1252 Start Of Cold Start Injector Open/Short To Ground
Any idea where to start looking for the short and whether this would cause it to go into limp mode?