So i was driving down the lovely NJ Turnpike at about 5500 RPM (damn si trannies!) when all of a sudden my car stuttered, then bogged to about 4500rpm. feels like a fuel problem, i definitely lost power through every gear. Could it be that i fried the ECU? (fuel delivery?) damnit, im so mad.

 

i don't think its the ecu..i could be fuel filter..and alot of things..are you throwing any codes?

 

nope no codes...but the ecu was chipped to have no rev limit...could a modified ecu become a weak target at high rpm?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ILoveMyED6 &raquo;</TD></TR><TR><TD CLASS="quote">nope no codes...but the ecu was chipped to have no rev limit...could a modified ecu become a weak target at high rpm?</TD></TR></TABLE>

Chipped? How?

And Si transmissions at 5500 rpm means you were doing 110 mph or so. Slow down.

 

i dont know the tranny code but its on my Dohc ZC motor, and no i wasnt doing 110 maybe around 80. i also dont know how the ecu was chipped, it came with the car when i got it

 

I'm willing to bet, since you say you have no rev limit, that you have some shitty chip. Like some ebay chip. which is pure crap. I would open up your ecu and put the stock chip back on unless if you have some EXTENSIVE mods (like turbo or a high compression motor). And if you do have some mods like that, chip it with uberdata or crome.

Wait a second, you are running a DOHC ZC (130hp d-series) with a p75 ecu (type-r ecu, b-series 195hp). Is that correct?

EDIT: someone confirm p75 is a type-r ecu, i forget exactly which it is.

 

p73 is type are, p75 is b18b obd1 non vtec

 

Does it always suck *** above 5500 or does it feel like it started to suck *** all the time no matter what?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SVOboy &raquo;</TD></TR><TR><TD CLASS="quote">p73 is type are, p75 is b18b obd1 non vtec</TD></TR></TABLE>

A b18b ecu running a dohc zc just doesn't seem right. And if its chipped like Ilovemyed6 says (especially with a shitty ebay chip) its going to flood fuel into the combustion chamber.

 

Well if it's chipped we have to know what's in the chip before we know anything about how well or not it is fueling the engine.

 

its a non vtec ecu, i still dont know how its chipped.. it used to have a turbo b4 i bought it, maybe its modified more than i know.. and it only started to suck *** that one day, it seems to run ok now, but should i just buy a pm7 ecu?

 

My Si tranny goes like 110 mph on 5th gear 5500 RPM. But I have a SOHC D15B with a LS(PR4) ECU.

I'm pretty sure that it's not the ECU.

Did to reset your ECU by any chance?

 

no i didnt, just turned the car off and sat on the turnpike for about 30 minutes. runs fine now..ill never know what happened..