i have a p06 that had a boosted z6 on it now i got a z6 with a y8 head.i have idle surging when its warm and it shows code 14.i was told that i might just need a dif. ecu
...i bought a p30 to try it out for ***** or so i can trade for a p28.so i put in the p30 and it has a different tone and it doesnt have white smoke coming out the tail pipe any more.but does have a lil bit of black when reved high.witch was to be expected on account its a dohc ecu.but with this ecu in it also has a less aggresive surge and no cel blinking.and when i drove it a lil it feels better. do i need a ecu or is my problem else where

 

plz help

 

Is your car still boosted? If not you need to re-tune the P06 to run what you have in your car now.

 

no its not now it has a z6/y8.were would i get a chip at and what fuel map would i use the y8 or z6

 

Xenocron.com
Phearable.net

Ether of these retailers will be able to give you a base map for your setup. Tell them what you have and they will create a base map to match it. Honestly though, if you have a tuner in your local area. Find out how much it would cost to put your car on the dyno for a properly tuned set of fuel & ignition maps.

 

If its really white, that is coolant. Shouldn't have anything to do with the ECU.

 

Yeah, you might wanna go over and check the health of your car before looking at the ECU.

 

Thanks for sending him to us :-)

 

but the thing is that it went away when i plugged in a p30.(just to see what would happen)and just a puff of black when i revved it.

 

how much does a ecu run about.

 

ok been running the car for 2 hours now,no smoke on start up and it idles fine when its cool but when it gets warm its still bouncing 400 rpms.can this be caused by a bad rotor cuz i dnt have a cel flashing any codes.its just solid....

 

Could be an air pocket trapped in the coolant system. This could in turn send false signals from the ECT sensor to the ECU. Remedy = Bleed the coolant system of any air.

Do you have your fast idle thermal valve hooked up? Could be that or your IACV. REmedy = Clean the IACV and or clean and adjust the FITV if your engine is equipped.

Or it could be a vacuum leak, however a vacuum leak usually surges no matter what the engine temperature is, cold or warm.

 

if you still have my number give me a call, I will burn a new chip for your setup.

 

**** that would be bad *** but i dnt got your number......and i was looking at my tb it has the hoses that go through the sides but it dnt look like my other one that has the fast idle valve,i cleaned the iac screen it had **** but not major.and when i turn the car off i hear a whistle like a bov but not as loud.also,i checked for vacum leaks with tb cleaner and even starting fluid but nope nothin...ill try to bleed the colant system....hey thanx everyone for the input i really appreciate it

 

ok so i got a p28 and i put it in.i started the car and it sounds different.1stdeeper tone.2nd it idles rough.kinda like a helicopter but not when i rev the engine,it sounds fine.it was night time but i seemed to smoke a lil more,im not 100% but ill check in the morning.also it seemed as if it was spitting water or something from the tail pipe....should i just change the head gasket.

 

If your still running rough with white smoke, I would check the head gasket. As stated above an ECU isn't going to stop that.

 

that **** was chipped.o well back to the p06.BUT i found out that when i plug my fan in it draws to much power from were ever it was spliced causing it to idle messed up AND make it hard to start.so i guess im just figureing out how to wire my fan in....any suggestions.

 

i have a 93 del sol harness by the way

 

woo wee i made that fan my bitch.wired it to a toggle switch that i think use to be for the fog lights...i think...but i think i need to turn the distributer cuz it idles at 600 rpms and i dnt feel like theres as much power.