im running a z6 in my 91 dx. i have the 91 si dizzy and ecu. i have the corrrect wiring to the ecu and sensors but still doesnt rev past 3300. do i need to change out the injectors? of so do i need the 91 si injectors. thanks

 

Sounds like you're in limp mode. Is the check engine light on, if so pull back the passenger side carpet and count how many times the red light flashes and report back to us.

 

What exactly is your setup? Which ECU are you using? Is it wired for OBD-1? What year/model is your car?

It's not letting you rev past 3k because 'limp' mode is on. Your check engine light should be on - see which code it's coming up with.

 

Just curious, when it's like that (limp mode), is it only when you neutral rev or does it also do that while driving?

 

yeah my check engine light is on...how the heck do i get it out of limp mode?

 

Pull the passenger floor carpet back, you will notice a metal plate with a hole in it. When you turn your key one click the red light will flash, how ever many times it flashes will tell you what's wrong.

 

Sounds like your MAP sensor is bad or not plugged in. You should have code 3 or 5....

 

i know what u problem its... look at the ecu and it should blink 4 times.. thats the crank angle sensor... that as a bitch to work on... i had that fixed by a perf shop;... they told me i had both crank angle cables switched...make sure that the crank angle sensor cables are correct. if they are, invert them real quick and try to start it after u reset the ecu again....

 

hehe, 3300rpm rev limit!

 

Hey at least he's saving gas.

 

i talked to lilgreenhonda last night and i think i figured out his problem, when he swapped his motor he left teh z6 injectors in and didnt putin the crx si ones so you cant run the z6 with the resistor box b/c they are not low impeadence, so whenever he changes them his troble will be gone.. end of story

 

I don't think that would cause that kind of problem. I had HF injectors(OBD-0) in my OBD-1 ZC and it reved all the way up to redline. I also converted the ZC to OBD-0 and used the OBD-1 injectors with and without the resistor box and it still went to redline, although extended use WILL fry the incorrect injectors. Not that splicing out the resitor box would be a big deal for your friend, I just don't think that will solve his problem. I still vote for a MAP sensor problem.

 

yes. its either not wired properly or the dizzy is ****. recheck your wiring.

 

well today i was playing with the harness and heard the injectors turn on and off by jiggling the engine harness....so i think the guy who made my harness phucked up....and for the record im throwin 20 and SOMETIMES 4... thanks

 

u trowin an electric load and crank angle sensor..
check and grind all ur gnds.. and check that ur wiring for the dizzy its right... i canbet 10 bucks everything relies in those 2 things//

 

What are all the ground on the CRX, I know there is one to the valve cover and one to the trans.

 

this happened to my rex when I was bringing it home... I didnt want to turn it off cause the battery was not charged so when I got home i turned it off and turned it back on and it was fine and still is fine... I assumed that it was a fuel pressure problem so I cleaned the fuel system and then did a tune up, which it needed anyway. This only shows that it could be a number of differnet things...