[s-cars] Fault code 2113

[Wylie Bean]

Patient - 92 S4
Have had the random "hiccup" for a few months, but not much else in the way of poor running.
Friday, a weird hard start, which I thought was because I let go of the key too early then tried to re-start too quickly and washed the cylinder walls. Took 3 tries to start, without any wait in between, but 5+ seconds of cranking each time.

Today, no hard-starting issues, but an episode of hard running (sluggish, like an O2 sensor going bad, and a check engine light (I was betting it was the O2 sensor code) twice on a 15 min ride home from the pool. Got home and pulled codes, and it's for the CPS. Didn't think that would affect a running engine but apparently it can, according to SJM's site?  Can also mean engine timing is off, which I hope not, considering it's been nearly 25K miles since the TB job, where a new crank gear was installed.
I have a BBA CPS from Ed's GB last year, and there's a BBA CPS on there now that was installed by the PO 4 years ago.  Guess I should start making plans now to R&R that?
Am I risking much by not doing a visual on the keyway in the crank gear?
Wylie Bean
TheRingmeister at triad.rr.com
90 cq
91 90q20v
92 UrS4
08 Q7 3.6
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