So I have posted before on my nightmare of this code 9 (cyp sensor) and still have no idea. As of most recently I sent my (2) socketed ecu's to Xencron Tuning Solutions with my S300 to be checked due to both ecu's throwing this code 9. Both were sent back and was told both ecu's performed flawless and if was not distributor (2nd new oem distributor) was in the wiring. From there I spoke with Ryan at Rywire and had him build me a custom milspec harness and now Iam still stuck with same thing. I still feel I have a ecu issue due to last year when I purchased my 2nd ecu it fixed car for a year/6k miles then threw code 9 again. Any input would be greatly appreciated!

 

s300 not to blame for your code 9
Cyp sensor is located inside of the distributor.
If you install a distributor from a vehicle which is not throwing a code and it still throws one then it is likely there is an issue with your wiring or ecu it's self.

Maybe Electrical burning something,
M&w pro causes issues sometimes

 

Definatly feel issue is not in wiring. Installed brand new oem dizzy and know thats not it. Do run m&w pro 10 which possibly could be causing issue have not eliminated it but did seperate m&w harness from engine harness. Both times code has popped I have been in boost/high rpms if that says anything.

 

Check the harness ends/pins for signs of burning and the wiring harness at the dizzy and make sure that the pins are the way they should be.

 

brand new oem honda? cyp issues usually come up with the crappy aftermarket replacement distributors.

 

Checking pins at m&w box are u refering to? Looks like only wire going to dizzy plug is for tach signal (blue wire), do have the T1 harness. As for dizzy it is a honda oem.

 

Wrote Tony at T1 and he said no way m&w pro 10 is causing the code 9 due to totally different circuit. Have someone in the drag race threads saying his tuner performed a update to his s300 and it fixed his code 9. Anyone else heard of this? Need to look into first Ive heard of.