i was autocrossing my b16 rex today and had a problem. when i was on a staight away i was getting alot of wheel hop and then all of my dashlights went on, oil, CEL etc. i look at the ecu for the code and it was a solid red light. when i shut the engine off and turned it back on it was fine, no cel, and perfect idle. i ran three runs fine and then it happened again in the same place. what could it be? i did just replace my clutch, t-belt, and water pump but i don't think that would have anything to do with it. oh, i also drove it home which is 1.5 hours away and it was fine.

 

any help?

 

how violent was the wheel hop? Maybe the vibration is hard enough to mess up your ECU for a moment untill you turn the car off then on to let it kinda reset. Sounds wierd to me.

 

i would say the wheel hop was pretty violent. i have stock suspension which probably makes it worse. its just weird because i have done around 7 autoX this year and it has never happened.

 

Probably a loose sensor wire or ground on the ECU.

 

^^any ideas what sensor or what ground on the ecu??

 

you said you just replaced your clutch, how many miles ago? did you break it in? get the flywheel resurfaced?

 

flywheel was resurfaced, clutch has around 250 miles on it.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by coot_er &raquo;</TD></TR><TR><TD CLASS="quote">^^any ideas what sensor or what ground on the ecu??</TD></TR></TABLE>

Something important like MAP sensor or the ground on the thermostat perhaps?

 

Check the ground on the thermostat housing.

edit: nfn15037 already said it