Conza
South East
Ive recently acquired a 2010 audi a3 sport cr140 with the cffb engine
i got it cheap as the alternator pulley had fallen off and the belt went into the cambelt and it jumped 4 teeth,
i retimed it up and it fired up and ran okay so replaced belt kit and water pump and timed it up with new alternator and belt,
then it wouldn't start and kept getting a low fuel pressure code come up on vcds so i replaced the intank pump and filter which didn't do anything so replaced the solenoid on the top of the mechanical pump and the pressure regulator on the end of the rail and i got it to run and go etc, it smoked a bit like the dpf was blocked so did a force regen on it and was all good till i went to start it the next day, i unplugged the coolant temp sensor and it instantly fired into life but smoking again so replaced the coolant temp along with the oil and filter and air filter as noticed it was slightly over filled,
now it wont start again till cts is unplugged even tho its brand new and have that horrible sort of blocked dpf smell from the exhaust along with the smoke,
once its going it fine and drives lovely apart from i think the maf is packed up which i have one arriving today as its doesnt seem like it has a turbo and have had is fault code twice now.
would a mass air flow cause my starting fault or do we reckon its the pain to change egr as that would explain the smoke etc, just cant see what would change with the temp sensor unplugged and it wont start with the maf unplugged
many help would be appreciated
i got it cheap as the alternator pulley had fallen off and the belt went into the cambelt and it jumped 4 teeth,
i retimed it up and it fired up and ran okay so replaced belt kit and water pump and timed it up with new alternator and belt,
then it wouldn't start and kept getting a low fuel pressure code come up on vcds so i replaced the intank pump and filter which didn't do anything so replaced the solenoid on the top of the mechanical pump and the pressure regulator on the end of the rail and i got it to run and go etc, it smoked a bit like the dpf was blocked so did a force regen on it and was all good till i went to start it the next day, i unplugged the coolant temp sensor and it instantly fired into life but smoking again so replaced the coolant temp along with the oil and filter and air filter as noticed it was slightly over filled,
now it wont start again till cts is unplugged even tho its brand new and have that horrible sort of blocked dpf smell from the exhaust along with the smoke,
once its going it fine and drives lovely apart from i think the maf is packed up which i have one arriving today as its doesnt seem like it has a turbo and have had is fault code twice now.
would a mass air flow cause my starting fault or do we reckon its the pain to change egr as that would explain the smoke etc, just cant see what would change with the temp sensor unplugged and it wont start with the maf unplugged
many help would be appreciated