10.0 afr at idle?

Seth V · 07-22-2008, 01:52 PM

so i recently instaled my fp green tgv deletes and fuel system, agency power rails and agency power 816 cc injectors. also a walbro 255 pump.

i ordered a mail in flash from pdx to temporarily allow me to drive the car to get tuned.

heres the prob. i upload the tune, flash it to the car start the car up and the car goes to 10.0 afr even at idle. sometimes bouncing up to 10.1 before i shut the car down b4 smtn happens.

Afr's 10.0
Fuel pressure. 41 psi
vacume -15 (small leak i have to find)

Does anyone think they know what this could be? could the flash is just horrible. any input is appreciated.

Seth V · 07-22-2008, 02:46 PM

anyone.....................

***Turbineguy*** · 07-22-2008, 03:06 PM

Possible issue with your injector scaling. I'd call them up and have them verify what they used for the scaler.

***Turbineguy*** · 07-22-2008, 03:12 PM

You also may need to allow it to run for a spell to get out of the warmup open loop and also let the ECU start adjusting your trims.

***JDM-STI*** · 07-22-2008, 04:45 PM

What are you using to take your AFR readings?

***Turbineguy*** · 07-22-2008, 04:55 PM

Quote:

Originally Posted by JDM-STI

What are you using to take your AFR readings?

Agree. Are you using an previously installed AFR gauge or something else?

Seth V · 07-22-2008, 05:21 PM

aem wideband 02 is used for afr's and 10.0 is as rich as it reads so i can only guess its worse

Seth V · 07-22-2008, 05:22 PM

had it when i was stage2 and idled at 14.7-14.9

ninjaboy76 · 07-22-2008, 05:35 PM

The map is probably just a limp tune.

***JDM-STI*** · 07-22-2008, 05:40 PM

Quote:

Originally Posted by ninjaboy76

The map is probably just a limp tune.

Even if so, that is WAY too rich at idle. He's washing the cylinder walls down while at idle.

ninjaboy76 · 07-22-2008, 05:56 PM

Yes, but the injectors most likely aren't even scaled. That would be the problem.

***Turbineguy*** · 07-22-2008, 05:59 PM

Quote:

Originally Posted by ninjaboy76

Yes, but the injectors most likely aren't even scaled. That would be the problem.

Thats my feeling as well.

jays05 · 07-23-2008, 04:39 AM

Get a real tune or call PDX and tell them to fix it. I've seen another STI with a PDX mail-in tune that barely ran, wouldn't idle, and threw CELs for things that are not even present in an STI (like the idle air control valve, lol). After they went back and forth with PDX once or twice it ran OK enough to limp the car onto and off a trailer.

***gabedude*** · 07-23-2008, 04:58 AM

Its the injectors. I never have had a chance to tune those guys yet (agency power)??? Are you sure you are not talking about PE injectors? They require a bit more latency IIRC than most.

Seth V · 07-23-2008, 11:54 AM

yea they are agency power modified stocker

pdx is on the black list for me now! i know its hard to tune the car without it being there but i figured it would at least idle ok. well.... lesson learned.

i think im just gunna put some fresh oil and the stock inj and intake back on flash it back to stage 2 and find my vac leak then either swap the inj and maf plug. or tow it to the tuners.

Thanks everyone for helpin me out.

07-22-2008, 01:52 PM	#1
Seth V Amateur STI Driver Car: 04 Sti Fav Mod: exhaust Location: new jersey Posts: 38 Join Date: Oct 2006 Trader Rating: (0)	10.0 afr at idle? so i recently instaled my fp green tgv deletes and fuel system, agency power rails and agency power 816 cc injectors. also a walbro 255 pump. i ordered a mail in flash from pdx to temporarily allow me to drive the car to get tuned. heres the prob. i upload the tune, flash it to the car start the car up and the car goes to 10.0 afr even at idle. sometimes bouncing up to 10.1 before i shut the car down b4 smtn happens. Afr's 10.0 Fuel pressure. 41 psi vacume -15 (small leak i have to find) Does anyone think they know what this could be? could the flash is just horrible. any input is appreciated. This ad is not endorsed by this member. Please register or login to hide this ad.

07-22-2008, 02:46 PM	#2
Seth V Amateur STI Driver Car: 04 Sti Fav Mod: exhaust Location: new jersey Posts: 38 Join Date: Oct 2006 Trader Rating: (0)	Re: 10.0 afr at idle? anyone.....................

07-22-2008, 03:06 PM	#3
*Turbineguy* Non-Reformed Meth Addict Car: '06 WRB Fav Mod: A laptop and tuning software. Location: Swampbilly Central Posts: 2,300 Join Date: Feb 2006 Trader Rating: (7)	Re: 10.0 afr at idle? Possible issue with your injector scaling. I'd call them up and have them verify what they used for the scaler.

07-22-2008, 03:12 PM	#4
*Turbineguy* Non-Reformed Meth Addict Car: '06 WRB Fav Mod: A laptop and tuning software. Location: Swampbilly Central Posts: 2,300 Join Date: Feb 2006 Trader Rating: (7)	Re: 10.0 afr at idle? You also may need to allow it to run for a spell to get out of the warmup open loop and also let the ECU start adjusting your trims.

07-22-2008, 04:45 PM	#5
*JDM-STI* Platinum Member Car: 2005 & 2008 STI Fav Mod: UR 35R and Hydra tune by Scott Siegel :) Location: Columbus, GA Posts: 1,894 Join Date: Mar 2005 Trader Rating: (11)	Re: 10.0 afr at idle? What are you using to take your AFR readings?

07-22-2008, 05:21 PM	#7
Seth V Amateur STI Driver Car: 04 Sti Fav Mod: exhaust Location: new jersey Posts: 38 Join Date: Oct 2006 Trader Rating: (0)	Re: 10.0 afr at idle? aem wideband 02 is used for afr's and 10.0 is as rich as it reads so i can only guess its worse

07-22-2008, 05:22 PM	#8
Seth V Amateur STI Driver Car: 04 Sti Fav Mod: exhaust Location: new jersey Posts: 38 Join Date: Oct 2006 Trader Rating: (0)	Re: 10.0 afr at idle? had it when i was stage2 and idled at 14.7-14.9

07-22-2008, 05:35 PM	#9
ninjaboy76 Spec C Club Car: 08 CBR1000RR Fav Mod: None Location: Kansas Posts: 2,396 Join Date: Jun 2004 Trader Rating: (6)	Re: 10.0 afr at idle? The map is probably just a limp tune.

07-22-2008, 05:56 PM	#11
ninjaboy76 Spec C Club Car: 08 CBR1000RR Fav Mod: None Location: Kansas Posts: 2,396 Join Date: Jun 2004 Trader Rating: (6)	Re: 10.0 afr at idle? Yes, but the injectors most likely aren't even scaled. That would be the problem.

07-23-2008, 04:39 AM	#13
jays05 Spec C Club Fav Mod: when it's not blown up Location: Upstate NY Posts: 1,593 Join Date: Nov 2004 Trader Rating: (0)	Re: 10.0 afr at idle? Get a real tune or call PDX and tell them to fix it. I've seen another STI with a PDX mail-in tune that barely ran, wouldn't idle, and threw CELs for things that are not even present in an STI (like the idle air control valve, lol). After they went back and forth with PDX once or twice it ran OK enough to limp the car onto and off a trailer.

07-23-2008, 04:58 AM	#14
*gabedude* OpenSourcerer Car: 2007 UGM WRX STI Fav Mod: ECU Location: Austin Posts: 795 Join Date: Apr 2007 Trader Rating: (0)	Re: 10.0 afr at idle? Its the injectors. I never have had a chance to tune those guys yet (agency power)??? Are you sure you are not talking about PE injectors? They require a bit more latency IIRC than most.

07-23-2008, 11:54 AM	#15
Seth V Amateur STI Driver Car: 04 Sti Fav Mod: exhaust Location: new jersey Posts: 38 Join Date: Oct 2006 Trader Rating: (0)	Re: 10.0 afr at idle? yea they are agency power modified stocker pdx is on the black list for me now! i know its hard to tune the car without it being there but i figured it would at least idle ok. well.... lesson learned. i think im just gunna put some fresh oil and the stock inj and intake back on flash it back to stage 2 and find my vac leak then either swap the inj and maf plug. or tow it to the tuners. Thanks everyone for helpin me out. This ad is not endorsed by this member. Please register or login to hide this ad.