I'm working on my neighbor's 2003 1.8T w/ 140K miles. Both the Check Engine and ESP lights were on - I pulled P0321 and P0322 error codes which certainly seems to indicate a failing Engine Speed sensor.
But I also pulled the following codes:
P1931 Coolant Fan Control Module J293 Resistance too Small
P1290 ECT resistance too large
P0420 Cat efficiency
01119 Sporadic Gear Recognition Signal
Just wondering if I should be looking at something else (a marginal ground perhaps), that might be related to all of these.
Any thoughts?
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