I purchased a used 98 Audi A4 1.8LT quattro- I've already replaced the MAF, fuel filter, ignition coils, cleaned tran filter/pan, timing ok
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- STILL HAVE NO ACCELERATION! Maybe only 1/2 the power. Running rich according to my vagcom but no faults showing. I need to find out the correct Mass Air Flow readings from zero to red line on a factory standard engine.

Also, any other ideas about what could be causing the problem??? I'm so very frustrated with the car Thanks for the help.