Jared,
Some info you might find interesting. On another thread, jpit (another member) threw the following code:
P2721 Pressure Control Solenoid “D” Control Circuit High
Now here's the interesting part. This is what jpit just posted:
Quote:
Originally Posted by jpit
Interestingly, I threw this code when trying to accelerate past the problem we are having with the Uprev cold start.
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I'm hoping that might be a good clue for your troubleshooting.