Re: Sudden lean condition, need help.
 

those autometer gauges arent too acurate if you've got one. if ur running too rich it goes into the red area. check ur o2 also. see if its clean could possibly be dirty ???

Re: Sudden lean condition, need help.
 

Yeah, I'm stumped. I'm gonna get it on the dyno with the wide-band to see what exactly is going on. I might be in the market for some more DSM 450s if its a bad injector. I hope thats all it is. Or somethig cheaper. O0

Re: Sudden lean condition, need help.
 

those 1.5" underhood fuel pressure gauges don't last, I'm on #4, never another Autometer 1.5" gauge again! Marshall gauges have treated me well.

BTW anyone want a purple B&M modified 93 DX FPR with the TOO mod, I finally found the corner I threw it into!

$25 shipped (get this fucker away from me!)

Re: Sudden lean condition, need help.
 

I've been having the same problem with my B&M fpr at wot but with the exception that i'm still n/a. It seems to dog out hard at full throttle, fpr gauge goes red and then blank, but when you let off and ease back into the throttle, it works fine. It's gotta be a problem with the b&m's...cheap pos's :P

Re: Sudden lean condition, need help.
 

Im running the hack too and Im in a situation similar to this. THe upper rpm range it will hesitate at wot, but I find that if I set my vafc settings leaner in the upper rpm (more into the negative to about -43) it will smooth it out a good bit!? My autometer a/f gauge lights up the entire stoich spectrum and a little of the rich the whole time at WOT. How can you tell if your car is detonating or running lean???

Re: Sudden lean condition, need help.
 

read the plugs :)

Re: Sudden lean condition, need help.
 

just run WOT then shut the car off and pull em out right? what should I be looking for exactly, isnt a cinnamon brown color showing a good a/f mixture

Re: Sudden lean condition, need help.
 

if ur running a narrowband guage and ur reading slight rich when ur flooring ur car it means ur running really really lean

those guages are for NA cars not boosted cars

Re: Sudden lean condition, need help.
 

youmaybe maxing out your map sensor voltage. when i had the hack at around 10 11psi. keep boost at 10 psi orless and see if you have the same issue

Re: Sudden lean condition, need help.
 

Have put anything on the car lately or increased the boost?