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s13 @ fullboost
07-15-2013, 01:43 AM
My afr idling in the 11's WOT 10 flat. I only see 14's under light load at cruising speeds. boost gauge showing 20 at idle witch seems good. looking to get my idle back to what it used to be along with my afr at WOT, not sure what changed to cause this to happen. Car used to idle at 14.8-15.3 fullboost used to be 11.6

Mods
S15 turbo
HKS 740
Freddy intake
Circuit sport fuel rail
Fmic
Z32 maf
Recirculated bov
Full exhaust

Any ideas ?

tobroketobuildarealcar
07-15-2013, 04:22 AM
Boost leak test your car and make shure your bov is sealing up 100% chances are there is a leak somewhere you don't know about

s13 @ fullboost
07-15-2013, 10:57 AM
So I found a possible issue the vacuum line from the fpr to the intake mani is super super soft it's prob collapsing when I played with it I saw my idle go from a 11.3 to a 14.9 I have my bets on this being it the corporate! Well see i will be replacing after work

steve shadows
07-15-2013, 01:59 PM
My afr idling in the 11's WOT 10 flat. I only see 14's under light load at cruising speeds. boost gauge showing 20 at idle witch seems good. looking to get my idle back to what it used to be along with my afr at WOT, not sure what changed to cause this to happen. Car used to idle at 14.8-15.3 fullboost used to be 11.6

Mods
S15 turbo
HKS 740
Freddy intake
Circuit sport fuel rail
Fmic
Z32 maf
Recirculated bov
Full exhaust

Any ideas ?

What is your base fuel pressure also?

Worth making sure this is correct also.

s13 @ fullboost
07-15-2013, 02:01 PM
Vacuum source unplugged fpr is at 45

jr_ss
07-15-2013, 05:06 PM
So I found a possible issue the vacuum line from the fpr to the intake mani is super super soft it's prob collapsing when I played with it I saw my idle go from a 11.3 to a 14.9 I have my bets on this being it the corporate! Well see i will be replacing after work

While it may be corporate, I think it is your culprit...

Replace the line and check your ignition timing, adjust as necessary.

s13 @ fullboost
07-15-2013, 06:14 PM
Lol good catch using my iPhone siri takes what I say with a grain of salt lol

jr_ss
07-15-2013, 08:27 PM
Lol good catch using my iPhone siri takes what I say with a grain of salt lol

No worries, she fucks me all the time...

s13 @ fullboost
07-15-2013, 10:20 PM
Think the maf sharing a ground with the e fan could do it? I just bought this car a few months ago I have been slowly but surly going through it trying to get everything de janked

shift_5
07-16-2013, 08:01 AM
I'd put them on separate grounds to be safe, even if it is not the issue. MAF ground by itself, fan ground can go with the chassis ground.

Think the maf sharing a ground with the e fan could do it? I just bought this car a few months ago I have been slowly but surly going through it trying to get everything de janked

tobroketobuildarealcar
07-16-2013, 09:48 AM
Maf ground must always be seperate to avoid interference

Mikester
07-16-2013, 09:56 AM
^^He's lying. Everyone knows that everything under the hood should be tied into the MAFS ground.

But seriously, hope the vac line fixes her.

BCHLR240SX
07-18-2013, 07:45 PM
I had the same issue with my enthalpy ecu, it's the tune itself. I just used an safc to correct it

tobroketobuildarealcar
07-18-2013, 08:11 PM
I have not personally seen one bad enthalpy tune. make shure every thing else is 100% b4 blaming the tune for instance you can havd a vacuum leak and not know it or where it is and think the tune is off. so you install a safc and make the afrs better but you never fixed the problem just made it look better

Mikester
07-19-2013, 07:44 AM
Enthalpy tune... Cool.

SAF-C- NOOOOOOOOOOOO!

zurud
07-19-2013, 09:22 PM
Well I got bad enthalpy tune. On the map he send me its pretty generic. He put enrichment in my cruise are that should be close loop. TP value above 45 is all 30. 5 to 15 TP is close loop till 4500 rpm. I am running rich everywhere except idle and below 30 mph.

tobroketobuildarealcar
07-19-2013, 10:10 PM
Maf based tunes are all generic the maf does all the work