So just like the title says, I bought a used s2000 with a p0335 check engine light. The car was in limp mode.

1. I pulled the existing crank position sensor, and replaced it with a new one.
2. I reset ECU by pulling 7.5 fuse.
3. Made sure to reset CEL codes with scanner.


I drove the car after replacing the sensor, but car ran sluggish and felt like it had 2/3rd the power of a normal s2000 even punching it in second gear with vtec. 2 days later, the CEL came back on.


I would love your input/feedback on this matter as this is my first s2000. Clearly it's not the sensor. Is it a possibility that the harness itself is bad? Could something else be the cause of the P0335 reading? (yes, I have used the search function on both this site and google)

 

Doubt it's harness problem. Google ecu pin out and get a volt meter, make sure voltage is getting to the ecu by running the car and seeing if voltage is present at the ecu harness.

 

Timing chain slack can cause this. More common in engines with a timing belt but not unknown with a timing chain. Removing the valve cover is fairly simple and there are marks on the valve gear that show where they should mesh. I'm not sure where the bottom mark is.



-- Chuck

 

Agreed, your cam timing sounds out of time.

Contrary to original info, this engine will run with the cams out of time.

I have never seen a bad crank or cam sensor to date.

It is near impossible for the cams to jump time unless the TCT is completely removed. It was likely assembled like this.

Which also means the plot can thicken.

 

After some resesarch and calling around, is it a possibility that the Timing Chain Tensioner needs to be replaced?

 

Check your timing chain and report back.