.:HSTuners::

09-30-2003, 10:40 PM

i just installed dsm 450cc injectors on my ls/vtec.. i have a skunk2 ecu, skunk2 intake manifold. thats pretty much all the bolt ons i have.. my car idles like a big block with cams.. no matter what rpm i have the motor at, it does not have hardly any power...i know im running very rich and i need a vafc to control the air fuel.. but i have no idea how to tune my vafc.. if anyone has tuned theres after doing an install like this or just knows how to tune one, i would appreciate the help.. any comments or advice would be greatly appreciated.. thanx

*pdiggitydogg* · 10-01-2003, 09:54 AM

do you have an egt/a-f gauge to tell youre runnings?
Youre not gonna do too well of a job just guessing what the a/f ratio is if ya dont

10-01-2003, 11:24 AM

yeah i have an air/fuel gauge.. it runs rich.. but it always has ever since i have put the skunk2 ecu in.. the skunk 2 ecu delivers more fuel (especially when vtec engages). so it has always ran a little rich..

*pdiggitydogg* · 10-01-2003, 01:41 PM

ok...well if you have another ecu, just run that until you get it tuned (i know this is really simple stuff...but its the best I can tell ya w/o a afc of my own.).

your posts confusing...do you already have the afc? or are you planning on getting one?

nonovurbizniz · 10-01-2003, 08:24 PM

If you're already running rich then why would you get bigger injectors???

The whole point of upgrading injectors is because the stock one's can't deliver a stoich mix much less a rich one...

I'd recomend taking out those injectors.

if you're not turboed then there is NO need for 440's in a ls/vtec...

10-03-2003, 11:05 AM

i already have the vafc..its already hooked up and tuned.im leaving the injectors on there because its getting turbo'd soon and i will need those.. my ecu only made it run rich during full throttle.. but now i got it tuned and it runs fine.. thanks for the help

09-30-2003, 10:40 PM	#1
1fast5gen Posts: n/a	dsm injector/vafc tuning i just installed dsm 450cc injectors on my ls/vtec.. i have a skunk2 ecu, skunk2 intake manifold. thats pretty much all the bolt ons i have.. my car idles like a big block with cams.. no matter what rpm i have the motor at, it does not have hardly any power...i know im running very rich and i need a vafc to control the air fuel.. but i have no idea how to tune my vafc.. if anyone has tuned theres after doing an install like this or just knows how to tune one, i would appreciate the help.. any comments or advice would be greatly appreciated.. thanx

10-01-2003, 08:24 PM	#5
nonovurbizniz Registered User Join Date: Jul 2002 Location: ECUSA Age: 46 Posts: 2,693	If you're already running rich then why would you get bigger injectors??? The whole point of upgrading injectors is because the stock one's can't deliver a stoich mix much less a rich one... I'd recomend taking out those injectors. if you're not turboed then there is NO need for 440's in a ls/vtec... __________________ I am an A$$hole... take anything I say to heart at YOUR OWN RISK...

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10-01-2003, 09:54 AM	#2
pdiggitydogg Yahoo Watashi wa kattaze! Join Date: May 2002 Location: Meanwhile, up in The D... Age: 40 Posts: 10,579	do you have an egt/a-f gauge to tell youre runnings? Youre not gonna do too well of a job just guessing what the a/f ratio is if ya dont

10-01-2003, 11:24 AM	#3
1fast5gen Posts: n/a	yeah i have an air/fuel gauge.. it runs rich.. but it always has ever since i have put the skunk2 ecu in.. the skunk 2 ecu delivers more fuel (especially when vtec engages). so it has always ran a little rich..

10-01-2003, 01:41 PM	#4
pdiggitydogg Yahoo Watashi wa kattaze! Join Date: May 2002 Location: Meanwhile, up in The D... Age: 40 Posts: 10,579	ok...well if you have another ecu, just run that until you get it tuned (i know this is really simple stuff...but its the best I can tell ya w/o a afc of my own.). your posts confusing...do you already have the afc? or are you planning on getting one?

10-03-2003, 11:05 AM	#6
1fast5gen Posts: n/a	i already have the vafc..its already hooked up and tuned.im leaving the injectors on there because its getting turbo'd soon and i will need those.. my ecu only made it run rich during full throttle.. but now i got it tuned and it runs fine.. thanks for the help