Help car went Nuts!

talon187 · 07-02-2009, 07:43 PM

ok I was going up the road all fine and dandy. all the sudden i went to give it gas it boged saw 10.0 on a/f so i let off figured i need to take away fuel with the new setup. I look over at the rpm gauge its at 0 i got it up the road maybe a half mile pulled over. shut it off. started it again still same thing. Also the fuse for my blower motor poped. I let it still for alittle started it the rpms would go up to 1200 fall falt on its face. id give it gas for a second and then it would fall falt on its face again i let it still for a few more mins and it started normal i got it across the street and up the hill to a family members house and left it there. Im wondering how do you tell if a map sensor is bad? I dissconnected mine and the car idled perfect but went lean so i shut it off. Also the car has a fresh motor and head with a sbr 30r dual ball bearing turbo. im running 780 injectors with a stage 3 chip from jeff at dsm chips and im using a maf pro to tune with converted to speed density please help!

GSXDNA · 07-02-2009, 08:31 PM

It's a long shot, but is there any chance you blew an intercooler coupler off? That would cause idle behavior similar to what you're experiencing, though it doesn't account for the blown fuse.

talon187 · 07-02-2009, 08:33 PM

nope intercooler piping is perfect

IEdroStarI · 07-02-2009, 08:57 PM

got me on this issue...a buddy of mine is having a similar problem... do you have any logs by any chance? MAF plugged in? id start with the simple stuff first and work your way to more complicated stuff

talon187 · 07-03-2009, 04:50 AM

Well its converted to speed density ive got a map sensor and air temp sensor. map sensor is pluged in. when i did unplug it the car idle perfect but went lean.im wondering if mine is bad anyone know how to find out ?

99gst_racer · 07-03-2009, 10:36 AM

Quote:

Originally Posted by bling5tatus

What are you using to run speed density?

You really should check user's mod lists before asking what they're using.

He's using MAFT PRO.

mike96 · 07-03-2009, 01:23 PM

how long have you been running this setup and how did you do your connections for your wiring? reason i ask is i had a similar problem only my car would go lean (16 - 17 AFR) for no reason, just driving along at cruse and pow lean.... both times fix turned out to be a bad connection somewhere in my wiring. but i had also shortened my wiring ALOT... might want to check yours out.