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Are there faults for the throttle body, or have you done a cleaning or left it disconnected for a long time?
You can reset the basic settings just by turning the key on, then off, then on again and putting the gas pedal to the floor and holding it there for a minute, then turn the key off while holding the pedal down.
Otherwise- if your scan tool requires the 3-digit number for the readiness test, the one for the throttle is 060, and to set kickdown for the transmission (if automatic) is 061
well this jetta wont accelerate very much.It tells me codes that i cant understand like 16990,17953,17966,17976. and my cheap code reader says p0638
my genisys otc tells me the first 4 codes
It sounds to me like it is saying the throttle body itself is faulty- mechanical malfunction, throttle drive problem- the weird one is the 16990, which means the module (ECM) is itself defective (but VW has had some issues with these faults before, I would replace it as the last repair, after replacing the throttle body. Usually the throttle body will only throw an "adaptation limit" fault if it is dirty and needs to be cleaned and adapted.
It could potentially be the wiring, so make sure to check the contacts of the wiring at the throttle body AND at the ECM itself, to make sure it is not due to some kind of corrosion on the pins.
one last question wher did you get the 3-digit number for the readiness test? I use prodemand
hello can you still helpme or do i need a different expert?