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Volkswagen Jetta 2007 Body 286000 miles
Under heavy acceleration, when the RPM reaches 5,000, the car loses power and goes into limp mode. The EPC and Traction Control lights turn on. When this happens, the transmission stops shifting and jerks or stutters a few times. Note: The car originally had a 1.6L engine, but it has been swapped with a 2.0L engine. However, the original 1.6L ECU (Computer) and wiring harness have not been changed. "
1 report
DI
I think what you thought you didn't need to do. You should have when you changed the engine. That's a tuff one to help with without taking a look and sticking it on a diagnostic machine. Keep reves at 4000 and get it to a mechanic.
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