Hi,
im reaching out for help here coz nobody knows whats wrong with my golf in german forums, so at first i want to say sorry for my bad englisch! second is that i am a "car noob", i work on it at my free time but i am not an mechanic or anything like that^^
So i try to write down the whole story as good as possible:
I had 0,216 nozzles and software installed in my MK4 ALH TDI. After around 1 year it started to smoke a lot. So basically the police got me and said i had to go to a "screening/investigation".
well, then i wanted to make my MK4 stock again, so i bought some OEM nozzles (including the housing = nozzles + housing + adjusted) and a motor control unit/ECU without tuning software on it!
well, then we changed the nozzles and when we wanted to connect the new needle lift sensor we noticed that there are two different connectors! my ALH has the new ones, and the new needle lift sensor had the old one.
because we were "in a hurry" we just cut the wiring and soldered the "new connector to the needle lift sensor". Alright, then we started the car and got some errors and limp mode. I drove home and cleared the error codes from my car, but the limp mode stayed. (limp mode = no power, 110km/h top speed and it needs a lot of fuel).
Well, people said with the "soldering" i damaged the needle lift sensor, so i bought the right one with the right connector. Changed the soldered one with the right one but still the limp mode was on! (not a single error code was given until now)
Well, i plugged in the old/tuned ECU, car started, drove some kilometers but the limp mode stayed. Plugged the new stock ECU in and it stayed the same.
started the car without the needle lift sensor plugged in and it drove the same as with one in!
So basically i have no idea what can be wrong with my car? both ECUs arent working, stock nozzles, right needle lift sensor, turbo looks good, no fault/error codes, everything else looks also good, and yeah...
so please help, have to go to the police for the "investigation" soon and my car isnt working properly...
can somebody say where the needle lift sensor sends his signal to? maybe with the soldering i interchanged the polarity and i damaged something in the ECU or a fuse or something like that? Otherwise my ECU cant be damaged because both ECUs arent working right!
Before i changed back to the stock stuff everything was working fine, car had plenty power but it smoked "a little bit". Because of this i think ECU or nozzles are responsible for this behaviour, not the G70 sensor/turbo/AGR or something like this...
so does anyone got an idea? i need help =(
thanks a lot, if something was unclear feel free to ask, i will try to answer the questions as good as possible!
Edit: i also "measured" the needle lift sensor, both are having around 95 OHM!
im reaching out for help here coz nobody knows whats wrong with my golf in german forums, so at first i want to say sorry for my bad englisch! second is that i am a "car noob", i work on it at my free time but i am not an mechanic or anything like that^^
So i try to write down the whole story as good as possible:
I had 0,216 nozzles and software installed in my MK4 ALH TDI. After around 1 year it started to smoke a lot. So basically the police got me and said i had to go to a "screening/investigation".
well, then i wanted to make my MK4 stock again, so i bought some OEM nozzles (including the housing = nozzles + housing + adjusted) and a motor control unit/ECU without tuning software on it!
well, then we changed the nozzles and when we wanted to connect the new needle lift sensor we noticed that there are two different connectors! my ALH has the new ones, and the new needle lift sensor had the old one.
because we were "in a hurry" we just cut the wiring and soldered the "new connector to the needle lift sensor". Alright, then we started the car and got some errors and limp mode. I drove home and cleared the error codes from my car, but the limp mode stayed. (limp mode = no power, 110km/h top speed and it needs a lot of fuel).
Well, people said with the "soldering" i damaged the needle lift sensor, so i bought the right one with the right connector. Changed the soldered one with the right one but still the limp mode was on! (not a single error code was given until now)
Well, i plugged in the old/tuned ECU, car started, drove some kilometers but the limp mode stayed. Plugged the new stock ECU in and it stayed the same.
started the car without the needle lift sensor plugged in and it drove the same as with one in!
So basically i have no idea what can be wrong with my car? both ECUs arent working, stock nozzles, right needle lift sensor, turbo looks good, no fault/error codes, everything else looks also good, and yeah...
so please help, have to go to the police for the "investigation" soon and my car isnt working properly...
can somebody say where the needle lift sensor sends his signal to? maybe with the soldering i interchanged the polarity and i damaged something in the ECU or a fuse or something like that? Otherwise my ECU cant be damaged because both ECUs arent working right!
Before i changed back to the stock stuff everything was working fine, car had plenty power but it smoked "a little bit". Because of this i think ECU or nozzles are responsible for this behaviour, not the G70 sensor/turbo/AGR or something like this...
so does anyone got an idea? i need help =(
thanks a lot, if something was unclear feel free to ask, i will try to answer the questions as good as possible!
Edit: i also "measured" the needle lift sensor, both are having around 95 OHM!
Changed back to stock nozzles - Limp mode without errors
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