Throttle Position Gremlins P0121 PO222

[eliwise]

I am still chasing these gremlins. We have replaced:

Throttle Body - New from VW
Throttle Rewire - New from VW per the TSB
Coils / Plugs / Battery

Still goes into limp mode every 50-200 miles or so. Seems intermittent. If I unseat and reseat the plugs is appears to get better for a few weeks.

Been 6 months since replacing the TB and now the same codes are back regularly.

Any Tips / Tricks to recommend?

 

[eliwise]

So the only solution according to the mechanic at this point is to replace the whole engine wiring harness.

 

[GTI's]

Try the TB again I have seen a few have to do this more than once.

 

[eliwise]

Cool - will give that a shot before the whole engine harness. TB isn’t that expensive… Getting tired of chasing this gremlin.

 

[GTI's]

Cool - will give that a shot before the whole engine harness. TB isn’t that expensive… Getting tired of chasing this gremlin.

When I used the term TB it was for Technical Bulletin again not to replace the throttle body again.

 

[eliwise]

Ahhh - sorry. So I can try replacing the harness again per the TB. Thanks - will give that a shot. For now, it is behaving. Had the wires re-connected on the harness to the throttle body.