Nomad4g63

iTrader: (16)

I have recently had an install of Kellford 272 cams, and since then i have been having this problem where @ idle, and while cruising my car will randomly shoot to 10.0 AFR and make my car stutter. I usually get off the gas and back on and it goes back to normal AFR range.

I have tried switching out BOVs but it seems to happen with every BOV i try.

Including:
-APS BOV
-FORGE DV
-Stock
-Tial Q

I don't know what could be the cause of this.

I have been attempted to be tuned by Jestr multiple times on this issue, but it seems as tho tuning is not the issue, b/c he has leaned out the map, and richened the map and it still has no effect.

What could be the cause

Nomad4g63

iTrader: (16)

Too add to this as well:

When i turn on my A/C or Fog lights.

The car has 1 hell of a time trying to idle. With the A/C as long as the second fan turns on the car idles, the second it shuts off, the car pretty much drops rpm to stall.

turbolarry

iTrader: (1)

The idle problems from big cams can be adjusted for in ecuflash; Desired idle RPM and Desired idle RPM with AC on.
I don't have your 5th gear solution. You might have to log the event to see if it's really a tuning issue; load, timing, and fuel.
How old are your spark plugs?

Ev0cRaZy

iTrader: (24)

Check for boost leaks too. I had an issue similar and ended up being throttle body seals.

SuPeRNeT

iTrader: (13)

It could be you injector settings!!! Try logging STFT and MTFT. And see if there with in 10%

Nomad4g63

iTrader: (16)

Well heres where it gets interesting.

The car will idle fine perfect 1100rpm idle no problem. But lets say im racing and i slam on the clutch and the BOV goes SWOOSH the rpms will fall to FLAT out 0 (Stall). Or if im a @ idle and its idling perfect @ 1100 and i rev up to 2 step and let off the gas it stalls as well. I have to give it a little gas to help it stabalize and idle again.

We recently did a boost leak test and found no problems. The spark plugs are brand new

idriveanevo

iTrader: (30)

maybe your still getting a boost leak somewhere.... i know you said you have tried all those valves, but make sure they are all 100%

s.e.a.n.

iTrader: (10)

Should have had Cwill tune your car lol j/k

Good luck

awdboosted

iTrader: (30)

Sound like a boost leak.. That Q vent back into the intake??? The BOV might be opening when it's not suppose to. That or you tune might have rich spots. You can't cruise with 10 afr for too long or you will cause engine damage due to oil dilution.

1d10t

iTrader: (19)

Have an aftermarket intake? You may need to scale your MAF. Hard pipes transmit vibrations to the MAF which can cause idle issues.
Definitely need to log during the rich a/f events.

EvoAlex48

you venting to atmosphere?

EvoAlex48

no matter what bov, venting to atmosphere always makes the car stall after you rev it even if it idles fine, whenever you downshift to slow down at say a red light or stop sign ect. or whenever you rev it stalls after the revs go back down, sounds like you need to recirc or get a flash

Nomad4g63

iTrader: (16)

i have recirculating setup on all BOVs except the Tial Q which i have a separate IC pipe for.

kanyonkid

iTrader: (33)

my buddy has the same issue on hks 272's and synapse bov.. we boost leak tested his car and the bov isnt sealed... hasnt got a new one yet, but im thinkin thats the problem... happend to another buddy on the stock bov, didnt boost leak test tho,threw on a forge rs and it was fine... Let us know when u solve the issue

kanyonkid

iTrader: (33)

oh i jus read u boost leak tested it... none of my buddies have scaled mafs and we all have hardpipes... im curious to this problem as well