new owner - 1999 V6 Engine light and weirdness

[derge808]

Hello,

I just bought a 1999 Passat V6 5-speed. The engine light is on. The engine when throttling up will pause and then surge a bit, giving the impression that I'm driving poorly. If you keep it out of gear and rev the engine, there is a pause at maybe 1400 rpm. It then catches up in kind of a slightly jerky manner. What are the most common causes of this behavior? I'm hoping on something inexpensive. Thank you.

[boschmann]

Most Advanced Auto Parts and Autozone type stores will check the codes for free, that's the best place to start.

[veedubmechanic]

Check the engine for broken vacuum hoses. Also check by the air box for broken vacuum hoses.

[derge808]

P0123 - Throttle position sensor circuit, high input

AND

P1544 - Throttle actuator sensor, signal high

what do you think it all means?

Thanks,

[veedubmechanic]

You will need a new throttle body.

[boschmann]

Ouch, that doesn't look good. Sorry, but I concur. $$! You can try checking for corrosion at the electrical connector, but it's a long shot. Unplugging it can cause other problems & it may have to be readapted to the ECM.