So I went to work this morning and left my lights on for the first time and killed my battery. So I got it jump started and my engine started but it was idling funny. At first I thought that it was just cause the engine was cold because it will sputter on cold starts sometimes. I go to drive and it felt all messed up at partial throttle, but WOT it was fine, until 4k when it seemed there was a rev counter, so I got it home by keeping it full throttle or no throttle as I was having no problems in either of those.

I am assuming that I am in limp mode. I think the cause of this would be that I am not currently running an O2 sensor and with the ECU rebooting from fresh saw that there was no O2 and put into limp mode instead of just a CEL.

I don't know if this is correct though since it ussually just throws a CEL.
I am running Hondata S300, and it is currently in closed loop, so I am going to put into open loop and reset the ECU, but I wanted to make sure I had assumed correctly.

 

You are in LIMP MODE if you dont have a hard on when you see a naked chick HAHA.

 

thanks.... you should go on tour with jokes like those, i mean seriously your funny

 

check the ecu out. on hondata ecu's, typically the s100 and s200, if u dont have the hondata s100 chip or s200 box in port CN2 of the ecu u will have a 4K rpm cut. im not too sure about the S300. check out the connections in the ecu.

if the ecu is in limp mode it usually cuts out at 3.5K