Z6 Block Y8 Head HELP!!
 

Hey guys , im new on here, im on alot of diff forums but i havnt really got a definate answer so im asking on here. I drive a 90 4 door EX with a Z6 block an Y8 head, everthing else is stock on the car. Now, im running really lean in the higher rpms for some reason, i know other guys that have this setup an it runs ok. Any suggestions? Feels like im runnin rich down low too. Anyone help? Any ideas? Thanks

Re: Z6 Block Y8 Head HELP!!
 

are you using anything for tuning? stock ECU? I didnt even realize there was an EX in 90. What ECU does it have, we'll start there.

also, how lean? have you put this on a wideband?

Re: Z6 Block Y8 Head HELP!!
 

The ex's in 90 had the same engine an everyting as the Si's. So i have the PM6 ecu. Right now i have nothing tuning it, i have a feilds afc but its not hooked up yet, an its runnin really lean, i get pingin at around 5-6000

Re: Z6 Block Y8 Head HELP!!
 

how do you know this pinging is becasue of being lean?????

Sounds more like the igntion timing is fucked up.

Re: Z6 Block Y8 Head HELP!!
 

I jus assumed it was from running lean. seemed like the most likely thing. How do i adjust ignition timing? Or check it for that matter. What should it be set at? It idles fine .

Re: Z6 Block Y8 Head HELP!!
 

wait? you're running a d16z6/y8 combo on a non-vtec ecu and asking why it doesnt run right?

pretty obvious answer to your problem right there.

Re: Z6 Block Y8 Head HELP!!
 

Well waht should i do? I bought the car like this, im jus trying to fix it. I have a feilds controller for vtec engagment an to help with the fuel. Should i swap out ecu's, if so which one an what else would i have to do?

Re: Z6 Block Y8 Head HELP!!
 

put a proper ECU in it.

Re: Z6 Block Y8 Head HELP!!
 

did they make a 90 ex and also i thought the z6 came out later and the y8 is a vtec head isnt it?