Re:Rev limiter
 

I know ---- all about obd0, but I promise you limp mode on OBD1 only allows 5000 rpm, idles @ 1500 and generally runs like total ----.

Re:Rev limiter
 

Hmm, explain what code or what type of situation you would be in to get into "limp mode" and get this "low rev limit" I'd like to reproduce it. If you get a Map or TPS cel you will still be able to rev over 5k, same with a IACV code. The car will run like complete ass and stumble, but should be able to rev.

Re:Rev limiter
 

knock sensor, checksum invalid (or not disabled) on a rom, code 13 (PA sensor), injector test and a few other things that arent on the top of my head. the ecu has a backup microcontroller which is what takes over in the event of a limphome situation. at that point it is NO LONGER running off the main MCU... therefor its not using the main MCU's program if its internal rom or the external rom.


I agree, and I now don't think this is his problem after saying he didnt have a solid CEL on the dash (assuming this is a OBDI car). Maybe he has his distributor at full advance... I did that once accidentally and got results like hes reporting :) Or maybe its got sensor problems like you also suggested.

Re:Rev limiter
 

i got the solid cel on broke the second sensor while putting the kit on 2 years ago. too lazy to fix and normally to drunk to care. fucker still revs and pulls like a beotch no limp dick here

Re:Rev limiter
 

You guys arent hearing me, solid CEL doesnt mean limp... it just means trouble. If you wanna experience limp and have a socketed ecu, pull the ROM and then run the car. Then you'll know limp :)

Re:Rev limiter
 

Re:Rev limiter
 

OK, here is my $0.02 on this thread (which, by the way, is getting way out of control):

Facts:
Limp mode OBD0 will have these characteristics, solid CEL (doesn't mean solid CEL = limp mode, but limp mode will haev a solid CEL), 3333 rev limit (based the code from the DASM), rough revving, between 1000 and 1500rpm idle.

Your problem: Cam timing is off. Check it, I bet your belt slipped.

CYP sensor will not cause improper rev limit, will however, cause misifing/detonation.

Re:Rev limiter
 

Okay no CEL codes, I reset the ECU (ODBO) and got the same results. I then hooked up to a PM6 and was limited to 6000, went back to PR4, still at 5000. No CEL codes on either.

Re:Rev limiter
 

Cam Timing.

I'm positive that is your problem, check it. Tell me I'm wrong. ::) You're probably a tooth, or a tooth and a half off.

Re:Rev limiter
 

Ahh mannn.....I dont have a timing gun >:(