Car shutters @ 50mph and has a CEL code P0670

StockRocket

Veteran Member
Joined
Nov 9, 2006
Location
Sykesville, MD
TDI
02 Jetta
I've been noticing some problems with my 02 jetta and I'm wondering if they could be related.

Symptoms:

-For the second time in a month my CEL came on and the code was P0670 (glow plug code). Outside temp was ~40f. My fuel filter has 11k on it, but I'm going to change it out since I have an extra and that was a suggestion in the past for the P0670 code.

-I've had an ongoing problem, while slowly excellerating once i get between 45-50mph (typically closer to 50) the car shutters until I excellerate beyond 50mph. The shutter feels like I'm running over a short rumble strip. When the card shutters nothing odd happens with the tachometer. If I'm paying attention and I excellerate at a "moderate" or fast pace through 45-50mph the car doesn't shutter. The trans is an FDB.
Any thoughts.
 
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