Giberish33
Veteran Member
Hey guys, fairy new to TDI's but I've owned my jetta for over 2 years now and have gotten familiar with vagcom and have been doing plenty of reading. About 3 days ago now on my way home from work coming up the last hill to my house I noticed that the car was making a louder than normal "ticking" noise, sounded like injector on a cold morning. The noise was a constant pace and only seemed "loud" when above 2500ish rpm. My I initial thoughts were possibly a sticking injector or just getting worn out (245,xxxkms on original bodies and nozzles).
Today I finally got around to hooking up vagcom to see what was wrong. The car drove normally if a little slugish but the main thing was the idle was lumpy to the point of shaking the car like it was running on 3 cyl. Seemingly from one day to the next my timing in basic settings has gone from dead on center to just slightly above red line retarded. IQ voltage is also jumping around like mad.
Sorry I dont have any screenshots right now but injection balance hduring the summer was not great with cyl 1 = 1.38 cyl2 = 1.18 cyl 3 = 0.33.
Now the balance is at cyl 1 = 2.07 cyl 2 = 1.30 cyl 3 = -0.98
fuel filter + oil filter + oil + air filter all have about ~4000kms on them
timing belt has maybe 30000-40000kms
the car starts fine and actually runs better / smoother when cold (im assuming ECU is adding timing) but by the time I get home from work and everything is warmed up its a lumpy idle that can be heard at the tailpipe as well. Anything in particular to look for? How could timing jump from middle to almost bottom of the graph seemingly overnight?
Today I finally got around to hooking up vagcom to see what was wrong. The car drove normally if a little slugish but the main thing was the idle was lumpy to the point of shaking the car like it was running on 3 cyl. Seemingly from one day to the next my timing in basic settings has gone from dead on center to just slightly above red line retarded. IQ voltage is also jumping around like mad.
Sorry I dont have any screenshots right now but injection balance hduring the summer was not great with cyl 1 = 1.38 cyl2 = 1.18 cyl 3 = 0.33.
Now the balance is at cyl 1 = 2.07 cyl 2 = 1.30 cyl 3 = -0.98
fuel filter + oil filter + oil + air filter all have about ~4000kms on them
timing belt has maybe 30000-40000kms
the car starts fine and actually runs better / smoother when cold (im assuming ECU is adding timing) but by the time I get home from work and everything is warmed up its a lumpy idle that can be heard at the tailpipe as well. Anything in particular to look for? How could timing jump from middle to almost bottom of the graph seemingly overnight?