We are replaced engine for 2000 Audi A6 Quattro, check engine light was "on", we are replaced Oxigen Sencor and Mass Air Flow Senser, everything was fine, engine works good, then car seating a while and appeare check eng light again : Codes: P1423, P1411,P1227... what is?? Thank You for any HELP!!!
P1423 p1411
u either forgot to put the hoses at the air motor or air motor not working.the location is at the passenger side in front of engine behind bumper and right beside the a/c dryier.looks like a blower....
p1227 can not remember......
check light went on when the engine got warm?
SOURCE: 2000 audi a6 quattro
did you check wires ? common problem spark plug wire failure
check if you get spark in wire, if you don't there is a problem within in the wire, unfortunately you need to buy new set
SOURCE: shuttering / vacuum
Do you also see the shuddering when you hit the gas to pass someone or accelerate quickly? If so, I'd swap out the fuel filter first - less money and that's a symptom of a clogged fuel filter.
If that doesn't do it, then yeah I'd check the mass air sensor out.
SOURCE: powerloss problem
could be the sensors under the dash on the pedals ,this is not a diy job but i would recomend dealer only
SOURCE: Oil level problem with 2005 Audi A6 3.0 TDI Diesel Quattro
My 2005 A4 3.0 convertible audi is not a diesel, but I had a similar experience with a low oil signal going on and after checking the oil, which was sufficient, and replacing the dipstick, the light did not come back on until a subsequent trip. The light usualIy went on when I was close to the needing an oil change. I've had the car, a used one, for about two years, and the oil light minimum signal started behaving like yours early. About a week ago the oil pressure warning light came on. I don't know if there's a relationship, but if there is be careful. Audis of our vintage have a problem with sludge build up that damages the oil pump, which is a costly item. If you drive the car with low oil pressure you may seriously/fatally damage the car. I don't know if the sludge, if that's what you have, can be cleaned out, but I'd do it if it can be. My mechanic advised me to trade the car to a dealer rather than fix it. Hope you have better luck!
SOURCE: 1999 AUDI A6 avant 2.8L quattro. Car vibrates
Check your ignition coils. I had the same problem on my 2002 Audi a6 3.0 quatro. Tiptronic transmission. I was driving down the road and all if the sudden the car started vibrating violently to. I thought I had a flat tire so I pulled over and checked but there was no flat tire. The more I accelerated the more it would vibrat. Changed my ignition coils and the problem went away.
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