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Help! Went to omni 4 bar now A/f very lean

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Old Mar 19, 2016 | 11:15 PM
  #16  
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Originally Posted by Klaiceps
Those values are correct. Could you post up your ROM file here? I'll dive into it to see if I'm able to spot anything.
How do I post a file I see the insert image but can't do my rom file?
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Old Mar 19, 2016 | 11:32 PM
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Click on "attachments" from the "reply" menu tool bar. It looks like a paper clip.
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Old Mar 20, 2016 | 08:14 AM
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My rom file.
Attached Files
File Type: bin
read_image.bin (512.0 KB, 0 views)
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Old Mar 21, 2016 | 01:11 AM
  #19  
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Did you have a chance to look over my rom?
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Old Mar 21, 2016 | 01:26 AM
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Took a look and I can't spot anything out of the ordinary. I'm out of ideas on this one.
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Old Mar 21, 2016 | 11:26 AM
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Thanks for the help trying to figure It out.
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Old Mar 21, 2016 | 08:42 PM
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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.
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Old Mar 21, 2016 | 08:47 PM
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A vacuum leak would explain sluggish acceleration.
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Old Mar 22, 2016 | 12:04 AM
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What about not ideling and lean af? If the timing needed to be adjusted what what cause this?
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Old Mar 22, 2016 | 09:48 AM
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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.
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Old Mar 22, 2016 | 10:57 AM
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I'm running SD would a cracked vacuum line still make me run lean?
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Old Mar 22, 2016 | 11:06 AM
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Originally Posted by heliarcpro
I'm running SD would a cracked vacuum line still make me run lean?
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
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Old Mar 22, 2016 | 11:18 AM
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Ok thank you.
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Old Mar 22, 2016 | 11:47 AM
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At this point, in addition to any possible vacuum/boost leaks, try checking your fuel system: injectors, fuel pressure regulator, lines, fuel pump, etc.
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Old Mar 23, 2016 | 10:47 PM
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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.
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