Still high BLM at idle.

[Slowhawk]

I replaced all of the vacuum lines,check valves and reset the computer. BLM count works it's way to 160 still. This only happens at idle.Cruising it is at 136 or so.WOT it locks at 128 (A/F at .820)

What else should I be looking for?I'm running out of idea's

 

[Dan Thompson]

Is your boost gauge on that has vacuum and boost? If so what is your vacuum at idle in Park and at idle in gear?

Mine was about 14-15 in Park and about 18-19 in gear. My engine is stock.

 

[Slowhawk]

The vacuum is 14-15 inches which seems fine with the cam to me.

 

[77tech9]

Mine was doing this with a header to turbo leak. I guess cold air was getting onto the O2 sensor or something.

Had a lot of trouble getting it to seal, but finally replaced studs in turbo and sanded perfect and my blms now idle ~136 or so with my RA chip.

If they MOVE thats when you have a problem with the AF ratio. Try looking for a leak somewhere or change your O2. Or have you checked the simplest thing like fuel pressure?

 

[Slowhawk]

It only does it at idle when stopped in or out of gear.I ended up setting my chip to open loop idle and locked it at 128blm.Now there is no smoke out of the exhaust at idle,,well so far.