I finally got my ZC started and now everytime I start it it revs up to 4000 rpm before settling down 1500, I'm not sure why? Also I plugged in my pm7 to see if that would help and I get a code 11.

----->It doesn't idle at 4000 rpms it revs to 4000 than drops to 1500 and then runs at a normal 750 rpm rev when warm. On warm starts, I start it and it jumps to 4000 rpms for a second then it drops to a normal 750 rpm. So basically it runs normal except for the damn startup.


Modified by SwissChEz82 at 2:52 AM 2/3/2005


Modified by SwissChEz82 at 2:53 AM 2/3/2005

 

Need quick help!!!

 

check your cam timing, and code 11 means you got a shitty EDM ecu, that uses a CO pot sensor instead of an o2 sensor...

 

cam timing for what? how can i fix the ecu?

 

to see if you set cam timing wrong...you cant fix the ecu, you have to use a different one...

 

what the hell is a CO pot sensor, can I bypass it?

 

no you cant, you have to get a different ecu...

 

I originally thought it was my EACV and now I'm leaning more towards possibly having plugged the wrong harness into the plug. I replaced the EACV with the one from my Si engine and got rid if the idle surge but I still have the initial start, 4000 rpm rev.

 

dude, just try a diff ecu, and it just might work right.

 

tried 2 different ECUs

 

the wiring is right, does anyone have any other ideas as to why my car revs up to 4000 when i start it???

 

did you check your timing like i said? cause that happened to me, the intake cam was off a tooth and it would idle at like 1500-2000...

 

i was just reading this on http://www.thezcr.com ...its the EACV they were saying. You have to take it off then adjust the idle screw then...well here is the link

http://www.binghamtonlife.com/...1.jpg

and if that isn't it here is the other

http://www.binghamtonlife.com/...7.jpg

 

It doesn't idle it revs to 4000 than drops to 1500 and then runs at normal rev (750)when warm.

 

oh ok, sorry thought i could help

Good luck and you might want to check out that ZC site though

 

I already replaced the EACV and got rid of one problem but still have the startup problem. Thanks anyway.

 

Could this be my problem???

 

That did it, I took the one off my Si engine put it on the ZC and it turned over just fine. Thanks for the help.