2004 Honda S2000, USDM

I had a small spin during autocross a couple weeks ago. I was able to finish my run, car ran fine. After I returned to the pits, I turned off the vehicle. The car would no longer start.

I trailered the car home, let it sit with the battery disconnected and tethered the battery to maintain charge for about a week, and resumed diagnostics when I had time.
I did check and adjust valve clearances and timing of the vehicle at this time, I do this annually. I also replaced the engine mounts at this time -- one was sheared in half. Replaced with another set of Ballade's finest engine mounts.
Engine does have fuel, 2/3rds full.
Car does not start with new battery even with jump pack connected. Engine cranks over just fine without issue, ruling out battery.
RPMs can be seen on dash during start and engine can read the RPMS ruling out crank position sensor.
The vehicle does have and spit fuel. I removed the spark plugs and coil packs and tried starting the vehicle, fuel can be observed spewing from all 4 cylinders. Rules out fuel issue.
Tested the spark plugs for spark by both trying to crank the vehicle and connecting the spark plug end to a fuel rail bolt -- no spark.
Tested spark plugs again by connecting a copper wire and tying it from the negative terminal of the battery directly to the end of the spark plug tip. No spark.
Using a brand new set of spark plugs, no spark is generated.
I did use a different set of replacement cam sensors to see if the cam sensors were damaged.
Checked Fuse Box near battery and Fuse Box near driverside area.
Checked Fuses by driver side dead pedal, Ignition Coil Fuses.
Using wiring diagram from both ProDemand and S2000 club, checked for continuity of the coil packs. Continuity is good.
Disconnecting the Greddy eManage ECU, and using the OEM ECU, checked for continuity again, which remains good.

Edit: I didn't cross check the cam timing to the crank timing. Thus, I did not check timing correctly. Seems to be off about one tooth.

At this point, I can't figure out where to search anymore. Maybe I'm missing a fuse that I should be checking or perhaps there's something else that's really obvious which I'm missing. Thanks.

 

OEM ECU won’t fire the coils if the timing chain is out of time.

 

This is an odd one given the car ran through the rest of the run. May be good to check the timing though as mentioned above. I would expect if you didnt get the clutch in during the spin and forced the engine the wrong way it would have died and not finished the run, but a good thing to check to be sure here.

 

Is the clutch pedal stopper still present?

 

It wont operate the starter if the clutch safety is broken.

 

Will double check timing, though I did the valve intervals and the cams appeared in time, but I can check for compression to see if the chain may have slipped.
Clutch Pedal safety is present.

I keep getting asked if the S (USDM 2004) has some type of crash safety shut off, which I assume it doesn't.

Edit: Double checked the timing and timing was off. Took a while because I took a week off to help run the Brunswick ProSolo & National Tour.

 

Can you hear the fuel pump? Inertia safety switch. if there is one, normally cuts electrical power to the fuel pump.

This may help (notes it's common to activate it in a spin:

https://www.s2ki.com/forums/uk-irela...switch-616062/

-- Chuck

 

yeah I think you have to stick your arm up to your elbow under the dash to find it I believe it is only a fuel cutoff though and it sounds like you are seeing fuel pressure. But I guess worth a quick check.

One of these switches left me scratching my head a bit back in college on my fox body when it decided to just start randomly triggering over big bumps Those were right there in the trunk though so easy to find

 

Vehicle appears to be off timing by about one tooth. What would the recommended fix be? Replace TCT and realign chain? Or is it more invasive? ie. replacing the chain all together.

 

Do you have an idea how the engine got off one tooth?

Thanks!