Bay Runner

Need some help to figure out why I'm getting these codes! Quick background, I powered washed the engine while back and since then have been getting these codes while cursing around 70 mph. in a freeway. It is not always cylinder 1, 3, 6, then I clear it and it moves to 1,2,6, or 1,3,5,6. Here are things I have done so far, changed the MAF, coils, wires, and spark plugs, but sill getting these codes.

Before the check engine lights up, I feel couple engine hesitation or bumps then 10 min later the engine lights, so now I think crank shaft sensor perhaps or maybe the valve spacing. Any suggestions???

Appreciate your help here, the trunk was running flawlessly with my URD kit (non 7th injector) before the power wash, even the car wash said don't do it, since he has seen it over and over that people blow out engines but I still did it.

Thanks in advance.

75w90mantraN

Did water make its way in past firewall into sensitive electronics like the ECM/PCM?

Bay Runner

I hope not, I can write to the ECM and change maps so I assume it's k but how can I really check?

75w90mantraN

If no one chimes in about the location, I can look it up tomorrow and get back to you. On some vehicles, they tend to be in the passenger side near and behind the glovebox.

Basically checking for presence of water intrusion, which may have dried up for the most part, so perhaps trails of washed up dirt or sediment. Or corrosion on the metallic conductors.

Parts were changed after the wash? Any ignition arcing?

Crank sensor maybe...worth checking if just dirty, especially if water was directed there. Seems like you had history with that part from previous posts.

Bay Runner

I remembered the ECU location since I spliced the Split-Second controller to it and it is behind the glove box. I checked it tonight and it was try and no sign of water near or on it. I also check the log history of the codes and temp was good during the misfire but one thing was odd is that the RPM showed 14,000 which impossible and that make me think that crank shaft sensor gone bad.

I need to have my mechanic to change it along with timing belt. I hope this helps, but if not then he needs to check the valve spacing.

fierohink

Bay Runner

I have that in my to do list, if new crank Shaft sensor doesn't fix the misfire.