LQ4 to carb and now wanting FI - The 1947 - Present Chevrolet & GMC Truck Message Board Network

justdueitt123 · 04-20-2011, 02:33 PM

Kind of an interesting situation. I picked up a LQ4 out of a totalled 2006 Yukon about a year ago. For simplicities sake, I decided to go with a carb setup since the intake that was on the motor was shot anyways. Got it installed and it runs like a champ... My only issue is this past winter reminded me how nice it is to have a fuel injected setup.

So my question is:
Would there be an easy way to get this thing converted to FI? Anyone that makes an entire setup... intake, fuel rails, computer, harness?

HARJO · 04-20-2011, 02:40 PM

Quote:

Originally Posted by justdueitt123

Kind of an interesting situation. I picked up a LQ4 out of a totalled 2006 Yukon about a year ago. For simplicities sake, I decided to go with a carb setup since the intake that was on the motor was shot anyways. Got it installed and it runs like a champ... My only issue is this past winter reminded me how nice it is to have a fuel injected setup.

So my question is:
Would there be an easy way to get this thing converted to FI? Anyone that makes an entire setup... intake, fuel rails, computer, harness?

In the summit catalog there are a handful of choices that are all inclusive TBI type replacements for carbs. Holley, Edelbrock and Professional Products are th main ones that come to mind.

I have my eye on the professional products one (Summit part PFS-70020)

68Stepbed · 04-20-2011, 02:54 PM

Fast EZ EFI

You could also just get an intake, throttle body, ECM, and wire harness from a salvage yard. Nelson Performance makes a wiring harness made to adapt to older vehicles.

HavinSomeFun · 04-20-2011, 02:59 PM

I have an extra intake with rails and a DBW TB if you want to do some swapping.. I don't have the harness. However, several companies make them to spec.

justdueitt123 · 04-20-2011, 04:44 PM

I wasnt really considering the carb replacement efi systems... would rather go with something closer to factory.

I was originally looking to do an entire 6.0 with harness swap but in all honesty I was a bit overwhelmed with the wiring portion. Could of had something to do with the fact that I replaced the entire chassis harness at the same time of the motor swap. One more thing to troubleshoot might have sent me over the edge! Plus i came across a good deal on my lq4 that had a bit of fire damage and melted the intake.

Any ideas on how much that Nelson Performance harness would run me? Would still need an ecu i'm assuming?

Seems a shame to ditch it

.... looks mighty good sitting on top
Name: IMG_0372.jpg
Views: 233
Size: 55.9 KB

04-20-2011, 02:33 PM	#1
justdueitt123 Registered User Join Date: Jul 2007 Location: Starkville, MS Posts: 4	LQ4 to carb and now wanting FI Kind of an interesting situation. I picked up a LQ4 out of a totalled 2006 Yukon about a year ago. For simplicities sake, I decided to go with a carb setup since the intake that was on the motor was shot anyways. Got it installed and it runs like a champ... My only issue is this past winter reminded me how nice it is to have a fuel injected setup. So my question is: Would there be an easy way to get this thing converted to FI? Anyone that makes an entire setup... intake, fuel rails, computer, harness?

04-20-2011, 02:54 PM	#3
68Stepbed Registered User Join Date: Mar 2005 Location: 10-Uh-See Posts: 5,609	Re: LQ4 to carb and now wanting FI Fast EZ EFI You could also just get an intake, throttle body, ECM, and wire harness from a salvage yard. Nelson Performance makes a wiring harness made to adapt to older vehicles. __________________ Matt 68 C10 stepside, LS1/700R4, TCI Engineering suspension system

04-20-2011, 02:59 PM	#4
HavinSomeFun Still Just Havin Some Fun! Join Date: Jun 2007 Location: Piedmont, Oklahoma Posts: 1,145	Re: LQ4 to carb and now wanting FI I have an extra intake with rails and a DBW TB if you want to do some swapping.. I don't have the harness. However, several companies make them to spec. __________________ a green one with some stuff done to it....

04-20-2011, 04:44 PM	#5
justdueitt123 Registered User Join Date: Jul 2007 Location: Starkville, MS Posts: 4	Re: LQ4 to carb and now wanting FI I wasnt really considering the carb replacement efi systems... would rather go with something closer to factory. I was originally looking to do an entire 6.0 with harness swap but in all honesty I was a bit overwhelmed with the wiring portion. Could of had something to do with the fact that I replaced the entire chassis harness at the same time of the motor swap. One more thing to troubleshoot might have sent me over the edge! Plus i came across a good deal on my lq4 that had a bit of fire damage and melted the intake. Any ideas on how much that Nelson Performance harness would run me? Would still need an ecu i'm assuming? Seems a shame to ditch it .... looks mighty good sitting on top



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.