2002 Audi A4 1.8T Starting and stalling/sputtering
20

Asked by Trent Jun 30, 2016 at 03:32 PM about the 2002 Audi A4 1.8T quattro AWD

Question type: Maintenance & Repair

had some issues a few weeks backmisfire
and blown engine timing fuse since then
Car was running great with new plugs,
wires, coils, and valve gasket response is
better then day one so I cleared the check
engine Got another code 4 days later
P0300 P0420 P0411... But the car was still
running great. Mabye another 2 days pass
fine .today I put a full bottle of lucus
injector cleaner into a half tank in my drive
way with intention to fill up never did....
Went MAbye 3-5 miles Mabye more at
highway speed no issue when I exit car
sputters out. Comes back on with one turn
over everytime but Will only stay on under
throttle... Put more gas(still not a full tank
still didn't have wallet)  still same issue

2 Answers
42,455

Auto_Centric answered 8 years ago

First thing connect a vacuum gauge, check for leaks! Misfiring code, Hego code. Air injection code, Clear them and drive it Lucas isn't doing anything to it. Check the fuel pressure at the rail in PSI If Ok scan it again timing issue and misfire correct these.

Mark helpful
20

Trent answered 8 years ago

Ok I will check that tonight... But the but I still don't this is the cause of the sputtering / stalling being that Iv had those codes for weeks... I haven't checked for new codes since this has happened tho .......... I took a video of what it's doing https://m.youtube.com/watch? v=xx_ekrO8DMU

Mark helpful

Your Answer:

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