Rev limiter
 

What govern's the rev limiter, ECU?
I cant rev past 5000. PR4 (integra LS) ECU on a JDM D15b non vtec, CRX HF.

Re:Rev limiter
 

yuppers

Re:Rev limiter
 

yuppers?

Do you have a CEL?

Sounds to me like you're in LIMP MODE.

Re:Rev limiter
 

yeah, that would be my guess^^^^

Re:Rev limiter
 

Nope, no cell whats limp mode?

Re:Rev limiter
 

limp mode is how your ecu runs if you have a cel, check to see if you have any codes anyways, sometimes you can be throwing codes without the cel coming on. if there is a problem, the ecu will run in "limp" (safe) mode so as not to harm the engine, usually it will idle kind of high and run rich along with not being able to rev over 5k

Re:Rev limiter
 

What a coincidence, my idle is ------- crazy. When I start her up she idles at about 1500 and slowly climbs all the way up to 2000, I need to get that ---- fixed, I probably need a new EACV. whats crazy is that in nuetral, if I give it some gas she'll rev all the way to 5000 from 2000, but in gear she drops to about 1500 and then goes up WTF? after a while she'll idle at about 1000 and a little over, and sometimes I see it as low as 300. I have noticed a CEL, but only for a couple of seconds, then it turns off. I figuered that the road bumps cause my lights jiggle on and off. I also have a hand brake light that wont ------- turn off. I dont know, what do you guys think?

Re:Rev limiter
 

CEL or not, you're in limp mode buddy. Limp hard idles the car @ 1500 rpm (full IACV duty cycle) and rev limit = 5000.

Re:Rev limiter
 

How the Hell do you get out of limp mode?

Re:Rev limiter
 

check the codes.. can't hurt, then reset ecu.

Reset ecu: In the engine fuse box pull the fuse labelled hazard to 15-20 sec. Re-insert fuse, and voila! ecu is reset.