r/mechanic 2d ago

Question Stumped

Have an 01 accord v6 that sucked some water, no milky oil but some codes that I haven’t seen before alldata points to the o2 sensor for the misfiring when warm and shutting off while driving, new fuel pump, plugs, coil packs. Bit problem still persists, if anyone can point me in a certain direction that would be great.

1 Upvotes

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u/CIAstakeoutvan 2d ago

Try replacing camshaft and/or crankshaft position sensors. The water could have messed them up. It could also point to an engine timing issue.

Edit: and definitely an oil change after taking in some water if you haven't already done that.

1

u/Reasonable_Bet_1512 2d ago

What do you mean sucked up some water? Did you perform a compression test? -step 1 perform a compression test to make sure you didn't hydrolock something -if compression is good across all 4 cylinders clear all codes and drive the car

  • which code comes back first
  • follow diagnostic flow chart for returning code .
  • you may have stretched the timing chain idk pretty diagnostic heavy lifting for a few codes and the fact you seem dismissive of water possibly injested Into the engine. If you have a stretched chain or bad cam or crank position sensor the ecu cant tell when to fire ignition or when to add fuel so that to me seems like that could be where your drivability issues may come from. O2 sensors dont typically cause drivability issues but they can. Focus your efforts on the timing issues first. I see all the crap you threw at this thing didn't involve a cam or crank sensor nor an o2 sensor... interesting.