I'd suggest selling it and getting a driver maybe a bit less sporty, but more serviceable, easier to maintain it yourself and costing a lot less money to maintain.If your auto really ran worse after the test, you might be experiencing a failure of the main engine wiring harness. Your model year indicates your car is right in the middle of that "green" biodegradable wiring. That might be the first place to start, the harness runs $1500.00 to $2000.00 plus installation.

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Junqueyardjim
Christianity, if false, is of no importance, and if true, of infinite importance. The only thing it cannot be is moderately important. C.S. Lewis



1983 Mercedes W123 240D 4 Speed 285,000 on the road with a 617 turbo, beautiful butter yellow, license plate # 83 240D INDIANA

2003 Jaguar Type X, AWD. beautiful, good mileage,
Mom's car, but I won't let her drive it!