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?

Re: LQ4 to carb and now wanting FI
 

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)

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.

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.

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 :crazy:.... looks mighty good sitting on top
Attachment 735791