Sr running rich enthalpy tune - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

*s13 @ fullboost* · 07-15-2013, 12:43 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, 03:22 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, 09:57 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, 12:59 PM

Quote:

Originally Posted by s13 @ fullboost

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, 01:01 PM

Vacuum source unplugged fpr is at 45

jr_ss · 07-15-2013, 04:06 PM

Quote:

Originally Posted by s13 @ fullboost

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, 05:14 PM

Lol good catch using my iPhone siri takes what I say with a grain of salt lol

jr_ss · 07-15-2013, 07:27 PM

Quote:

Originally Posted by s13 @ fullboost

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, 09:20 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, 07:01 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.

Quote:

Originally Posted by s13 @ fullboost

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, 08:48 AM

Maf ground must always be seperate to avoid interference

Mikester · 07-16-2013, 08:56 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, 06:45 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, 07:11 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, 06:44 AM

Enthalpy tune... Cool.

SAF-C- NOOOOOOOOOOOO!

zurud · 07-19-2013, 08:22 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, 09:10 PM

Maf based tunes are all generic the maf does all the work

07-15-2013, 12:43 AM	#1
s13 @ fullboost Spirit Of Ecstasy Join Date: Dec 2007 Location: Simi Valley, CA Posts: 2,531 Trader Rating: (15) Feedback Score: 15 reviews	Sr running rich enthalpy tune 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 ? __________________

07-15-2013, 09:57 AM	#3
s13 @ fullboost Spirit Of Ecstasy Join Date: Dec 2007 Location: Simi Valley, CA Posts: 2,531 Trader Rating: (15) Feedback Score: 15 reviews	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 __________________

07-15-2013, 01:01 PM	#5
s13 @ fullboost Spirit Of Ecstasy Join Date: Dec 2007 Location: Simi Valley, CA Posts: 2,531 Trader Rating: (15) Feedback Score: 15 reviews	Vacuum source unplugged fpr is at 45 __________________

07-15-2013, 05:14 PM	#7
s13 @ fullboost Spirit Of Ecstasy Join Date: Dec 2007 Location: Simi Valley, CA Posts: 2,531 Trader Rating: (15) Feedback Score: 15 reviews	Lol good catch using my iPhone siri takes what I say with a grain of salt lol __________________

07-15-2013, 09:20 PM	#9
s13 @ fullboost Spirit Of Ecstasy Join Date: Dec 2007 Location: Simi Valley, CA Posts: 2,531 Trader Rating: (15) Feedback Score: 15 reviews	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 __________________

07-15-2013, 03:22 AM	#2
tobroketobuildarealcar Zilvia Junkie Join Date: Feb 2013 Location: Florida Posts: 508 Trader Rating: (0) Feedback Score: 0 reviews	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

07-16-2013, 08:48 AM	#11
tobroketobuildarealcar Zilvia Junkie Join Date: Feb 2013 Location: Florida Posts: 508 Trader Rating: (0) Feedback Score: 0 reviews	Maf ground must always be seperate to avoid interference

07-16-2013, 08:56 AM	#12
Mikester Nissanaholic! Join Date: Jun 2007 Location: Kathleen, GA Age: 50 Posts: 1,941 Trader Rating: (0) Feedback Score: 0 reviews	^^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. __________________

07-18-2013, 06:45 PM	#13
BCHLR240SX Leaky Injector Join Date: Apr 2009 Location: T.O. Posts: 62 Trader Rating: (3) Feedback Score: 3 reviews	I had the same issue with my enthalpy ecu, it's the tune itself. I just used an safc to correct it

07-18-2013, 07:11 PM	#14
tobroketobuildarealcar Zilvia Junkie Join Date: Feb 2013 Location: Florida Posts: 508 Trader Rating: (0) Feedback Score: 0 reviews	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

07-19-2013, 06:44 AM	#15
Mikester Nissanaholic! Join Date: Jun 2007 Location: Kathleen, GA Age: 50 Posts: 1,941 Trader Rating: (0) Feedback Score: 0 reviews	Enthalpy tune... Cool. SAF-C- NOOOOOOOOOOOO! __________________

07-19-2013, 08:22 PM	#16
zurud Zilvia Junkie Join Date: Aug 2009 Location: evansville, in Posts: 391 Trader Rating: (4) Feedback Score: 4 reviews	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.

07-19-2013, 09:10 PM	#17
tobroketobuildarealcar Zilvia Junkie Join Date: Feb 2013 Location: Florida Posts: 508 Trader Rating: (0) Feedback Score: 0 reviews	Maf based tunes are all generic the maf does all the work

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