Page 1 of 1
wierd new lean problem.... again :)
Posted: February 18th, 2008, 10:07 pm
by se7en
okay, this is wierd.
i run perfect A/F ratios when I first start up the car and go boosting, but after about 35-40 seconds, it really runs lean under boost.
what the heck ?? i think the computer when it warms up, it thinks that it should run lean for some reason. I don't know why though... you would think the computer would run richer if there was any problems....
anyone have any ideas?
7
Re: wierd new lean problem.... again :)
Posted: February 19th, 2008, 6:04 pm
by Flinch
lol man when i can down there we whould have tried my extra K8 ecu. i though all cars ran richer when you first start them up cold untill they warm up totaly.
Re: wierd new lean problem.... again :)
Posted: February 22nd, 2008, 3:25 am
by tehbrookzorz
I think I'm gonna be bugging you guys for help when I get my KL installed. Know MSnS V3?
Re: wierd new lean problem.... again :)
Posted: February 22nd, 2008, 1:42 pm
by EZ_4_FUN
Are you boosting on the stock ECU???
Re: wierd new lean problem.... again :)
Posted: February 22nd, 2008, 1:51 pm
by se7en
ya lol, I am getting a MSnS soon(week), but for now, I use an FMU(vortech), which some people seem to be having good luck with.
Re: wierd new lean problem.... again :)
Posted: February 25th, 2008, 2:52 am
by EZ_4_FUN
Thats why your leaning out. Your stock ECU has no idea your running boost. The FMU is not enough to add the required fuel for 7 psi; not even close. There are some calculations you could do to determine how much fuel you need. You'd probably find that its more than the injectors your running can physically handle.
Dont tell me your running stock fuel injctors as well???
Did you get a copy of Corky Bell book?
Re: wierd new lean problem.... again :)
Posted: February 25th, 2008, 10:14 am
by solo_ryder
He's running 220cc DE injectors on his K8 with a AFPR as well FYI
Re: wierd new lean problem.... again :)
Posted: February 25th, 2008, 11:54 am
by se7en
EZ_4_FUN wrote:Thats why your leaning out. Your stock ECU has no idea your running boost. The FMU is not enough to add the required fuel for 7 psi; not even close. There are some calculations you could do to determine how much fuel you need. You'd probably find that its more than the injectors your running can physically handle.
Dont tell me your running stock fuel injctors as well???
Did you get a copy of Corky Bell book?
some people here had plenty of success(andy,antwan, and others) with the fmu setup. and yes. I upgraded my injectors, and I have read corky bell's book
5 more days till I get my MSnS.
7