WHY IS MY CAR STILL MISSING ON MULTIPLE CYLIND

1999 Audi A6

Tiny

jen1234958

June, 4, 2010 AT 7:33 AM

Engine Performance problem
1999 Audi A6 6 cyl All Wheel Drive Automatic 212000 miles

I recently bought my audi a6 wagon and did a motor swape b/c the other enginge blew. So I put one in with 68,000 miles. Before I bought the car it sat for 3 months. I put new gas in and it ran better. But now I drive it has random missfires.I changed. Spark plugs & wires, o rings, coil pack, intake gasket, cleaned out the intake completly And know it missfires when you go up a hill and coast down the other side and start to give it gas again it starts to miss. Please help!

2 Answers

Tiny

mhpautos

June, 4, 2010 AT 8:12 AM

Hi there,

You need to get a run on a chassis dyno, this will be able to be loaded up to simulate actual road driving loads, and the ignition & fuel system can be viewed electronically to check for any faults, I would get this done.

Mark (mhpautos)

Tiny

minhnguy

September, 11, 2011 AT 5:10 AM

One of the power transistors ( located on the air filter box ) does't work.

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