My 99.5 Jetta TDI keeps going into limp mode when I am accelerating quickly or going up hills. Are there any suggestions as to where to start diagnosing this problem?
vacuum leak - check the hoses, turbo actuator - moving freely?, air filter not plugged? wires running alongside intercooler hose aren't laying on the serp belt? these are the most recent things i've had to fix on my 2000.
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