I was told I had corrison under my coil. New coil, changed spark splug, and wires. A week later same thing, took it back. I was told the vaccum hose was not attached, air was getting in. Flushed out the hose, put a new clamp, said that should fix the problem. No, my car is still sputtering, and losing power, then it shuts down. What can I do to fix the problem, or at least have AAMCO that's be taking car of my where to look. Help....
I have the same problem and since I had a similar problem in a grand caravan I changed the same thing I did before which was the fuel pump. Well it did not work and I was about to change the coil and now I see your solution did not work either. Thinking of changing the wires and coil anyway. Could be same symtoms different problems.
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General advice:After warming up track the problem:sparkplugs (even new can have the ceramic parts broken/cracked /wiring (after warming up the isolation get's soft,can loose spark power)/ignition coil(s) (gets hot,stop runnig),running reach,fuel pump/fuel pump relay.Best guess:fuel pump mallfunction (low pressure) related,fuel filter cloged/water in the fuel/fuel line cloged/chipped. Cheers,hope u figure it out,let the people know.
Three things to check: Coil pack (the main box that spark plug wires connect to), Spark plugs and wires, that's not what's it, your fuel pump is gone. Definitely would get a fuel pump either way due to stalling of the car and possible excess air and a coil pack as well do to a malfunction reading with the emissions module causing the spark plugs to lose energy all at once which then can lead to the coil pack going bad and sending false emission rate timings threw the fuel management system causing the fuel pump to have the sensor go bad. This happened to me as well. Same exact thing. After I did those fixes, car was like I have never driven a true Audi till that day I changed the coil pack and fuel pump. Eventually to be safe I got all new 4+ Bosch spark plugs and wires just to prevent and imbalances. Changes your car into a pure German luxury mobile.
Did anyone check the spark plugs and wires? Make sure the Spark plugs are the correct NGK Spark plugs, nothing else. Fuel pressure is another thing that need to be verified under a load, lke the mountain you are having trouble with.
Internal combustion engines requires 3 things... fuel, air, and spark. You do not have enough of one or more of these. If the wires and plugs are old, change them. Air filter, same thing. Fuel filter can also clog up with stuff after awhile. When you take a look at the air filter check where the air comes from. It is possible a little critter has built a home and blocked the air flow (rare, but, it has happened).
Many thinks it is the intake manifold gaskets... i will change mine this week-end and i'll keep you guys posted. i had the same codes as above with the coils and it still sputters. so i am going foe the vaccume leaks before the expensive repairs.