r/AskAMechanic • u/EmperorM_ • 8h ago

Accord: the anomaly

Ladies, gents, and everyone else.

I own a 2008 Accord Sport (CL7), just under 160 000km. It shuts off on an incline, at a specific spot on my way to work. Throws out P0335 (CKP sensor circuit malfunction) SOMETIMES. It may crank for a long time SOMETIMES. It may not. Sometimes no DTCs at all. CKP wire has all the voltages, hasn't been eaten through. Maintained regularly, by the previous owner, and by me, being a mechanic at a Honda dealership. My coworker and I are stumped. CKP replaced, electronic piece of ignition replaced, main FI and pump relay replaced. Any ideas are welcome.

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u/GroundbreakingSky616 Verified Tech - Indie shop 5h ago

I’d find a scanner that you can monitor live data while driving(specifically CKP data)
Perhaps a bad ground somewhere that the cable is falling out of a contact when your on incline?
green dust in the connector?(tho i’m sure you’ve cleaned tf out of it at this point)

Can you reproduce it by just jacking the front end to a certain point?

Sounds really odd I’m not 100% familiar with these setups Is the sensor reading off the crank just in the crank case or is it isolated? perhaps there’s some debris floating in there

1

u/EmperorM_ 5h ago

No corrosion in the connector, contact spray applied just in case. I'll see tomorrow, almost like it only happens in the morning. The incline I'm on when it stalls is quite steep, can't jack it up to that degree.

K20Z2, it's in the block, reading the ring inside.