Help! Went to omni 4 bar now A/f very lean
something else i have noticed im not pulling as much vacuum as i use to. i only have 8-10 inches at idle when i used to have 22. could this be the cause of the car not wanting to idle when cold? after it warms up it pulls 14-16 inches and tries to idle around 1050rpm but sounds like its missing and rpm will drop and almost stall. would my timing being out cause this. i put in a new set of plugs 100 miles ago. i was using one step colder but wanted to try the stock temp plugs to see if i got more life out of them. i have checked for vacuum leaks and found none. so what would cause my vacuum to drop off? timing issue?
Last edited by heliarcpro; Mar 21, 2016 at 08:51 PM.
If you are drawing air at idle, that isn't metered by the MAF, then yeah..it would idle lean.
I once found a cracked vacuum line on the Evap or purge solenoid (i forget which). It took me a couple tries to find it.
I once found a cracked vacuum line on the Evap or purge solenoid (i forget which). It took me a couple tries to find it.
Oooh, SD. Hm....
It's been so long since I had a car without a MAF (especially with a vacuum leak), I honestly can't remember. I remember it hunting for idle, though.
I'll read back through your thread when I'm home. I'm distracted at work right now LOL
It's been so long since I had a car without a MAF (especially with a vacuum leak), I honestly can't remember. I remember it hunting for idle, though.
I'll read back through your thread when I'm home. I'm distracted at work right now LOL
so i did find a vacuum line off but after re attaching it the problems are still here. the car idles a little better but other then that nothing has changed. injectors all look good and are less then a year old. stock fuel rail but looks fine. the motor seems to be under load at idle because my turbo sounds like its spooling a little runing 1050 rpm at 8 inches of vacuum.







I'm out of ideas on this one.