Injector Help

sti752 · 07-07-2006, 04:18 PM

Hello,

I installed a set of JEC 720cc injectors today. I used a scale of 3730 with Wolf's posted latencies from WitchHunter. The car starts and idles perfect but my LC1 says it is idling at 12:1. I wonder if the wideband sensor is busted. Also, I have an APS 65mm CAI and thought I had tuned it well but maybe not. My immediate trims were crazy high 24's or so. The long term trims were at ~1.9. Any help with this would be greatly appreciated.

Thanks,
Brian

jays05 · 07-07-2006, 04:36 PM

The latencies recommended by Cobb for the Jecs 730cc injectors are 4.62, 2.35, 1.27, 0.88, 0.67 and the Nismo 720cc injectors are 4.68, 2.38, 1.29, 0.92, 0.67 (not sure which one you actually have)

Not sure if this jives with the numbers that came from witchhunter, but I can tell you that the witchhunter numbers for the pe850cc injectors did the same thing and the recommended latencies from cobb worked great for me.

sti752 · 07-07-2006, 05:17 PM

Thanks Jay. The Cobb JEC latencies you gave me worked perfectly. I guess I had way too much latency at ~14 volts and the injectors were firing too long.

07-07-2006, 04:18 PM	#1
sti752 Senior STI Driver Car: 05 Subaru WRX STi Fav Mod: Exige Location: Starkvegas, MS Posts: 379 Join Date: Jul 2005 Trader Rating: (6)	Injector Help Hello, I installed a set of JEC 720cc injectors today. I used a scale of 3730 with Wolf's posted latencies from WitchHunter. The car starts and idles perfect but my LC1 says it is idling at 12:1. I wonder if the wideband sensor is busted. Also, I have an APS 65mm CAI and thought I had tuned it well but maybe not. My immediate trims were crazy high 24's or so. The long term trims were at ~1.9. Any help with this would be greatly appreciated. Thanks, Brian This ad is not endorsed by this member. Please register or login to hide this ad.

07-07-2006, 05:17 PM	#3
sti752 Senior STI Driver Car: 05 Subaru WRX STi Fav Mod: Exige Location: Starkvegas, MS Posts: 379 Join Date: Jul 2005 Trader Rating: (6)	Thanks Jay. The Cobb JEC latencies you gave me worked perfectly. I guess I had way too much latency at ~14 volts and the injectors were firing too long. This ad is not endorsed by this member. Please register or login to hide this ad.

07-07-2006, 04:36 PM	#2
jays05 Spec C Club Fav Mod: when it's not blown up Location: Upstate NY Posts: 1,591 Join Date: Nov 2004 Trader Rating: (0)	The latencies recommended by Cobb for the Jecs 730cc injectors are 4.62, 2.35, 1.27, 0.88, 0.67 and the Nismo 720cc injectors are 4.68, 2.38, 1.29, 0.92, 0.67 (not sure which one you actually have) Not sure if this jives with the numbers that came from witchhunter, but I can tell you that the witchhunter numbers for the pe850cc injectors did the same thing and the recommended latencies from cobb worked great for me.