Fuel injection conversion

[martingmc86]

Has anyone installed a fintech 30003 on a gmc Sierra 305 v8 or similar I have an issue that my carb is electronic and has a electronic tps sensor what do I do in this case do I splice in the wire or what should I do

 

[justhorns]

My GUESS is all of that needs to go away. FITECH that is...

 

[Bextreme04]

Has anyone installed a fintech 30003 on a gmc Sierra 305 v8 or similar I have an issue that my carb is electronic and has a electronic tps sensor what do I do in this case do I splice in the wire or what should I do

The FiTEch would replace that system, but I'm pretty sure it is used for the ESC system on those 305's... probably not the same signal.

You DO know that you won't pass california smog with that system... right?

The only CARB legal Carb to EFI conversion I know of is the MSD Atomic EFI: https://www.jegs.com/i/MSD+Ignition...AGq781vzIugQbvP_blnLQeFNNGph7PpxoCWjAQAvD_BwE

 

[TotalyHucked]

I wouldn't touch anything FiTech with a 10ft pole, all of their stuff is junk. But, I would start by calling FiTech. They'll want to know your truck year and certain details. I would assume the TPS would be in the body to sense the opening of the butterflies/shaft movement and that would communicate to the computer, so that wire should go somewhere in the computer.

 

[DoubleDingo]

The FiTEch would replace that system, but I'm pretty sure it is used for the ESC system on those 305's... probably not the same signal.

You DO know that you won't pass california smog with that system... right?

The only CARB legal Carb to EFI conversion I know of is the MSD Atomic EFI: https://www.jegs.com/i/MSD+Ignition...AGq781vzIugQbvP_blnLQeFNNGph7PpxoCWjAQAvD_BwE

Interesting that the kit without the fuel pump is legal in CA, but the same throttle body kit with fuel pump kit included is not legal in CA. LAME!

 

[Bextreme04]

I wouldn't touch anything FiTech with a 10ft pole, all of their stuff is junk. But, I would start by calling FiTech. They'll want to know your truck year and certain details. I would assume the TPS would be in the body to sense the opening of the butterflies/shaft movement and that would communicate to the computer, so that wire should go somewhere in the computer.

86 is a Quadrajet with the electronic idle mixture valve. I think the TPS is only used for that and the ESC system... I don't think it has much of a "computer" like an 87 did.

 

[TotalyHucked]

86 is a Quadrajet with the electronic idle mixture valve. I think the TPS is only used for that and the ESC system... I don't think it has much of a "computer" like an 87 did.

I'm talking about the FiTech computer

 

[Bextreme04]

I'm talking about the FiTech computer

Maybe we are all confused on what is being asked here. I read his initial post as his original quadrajet has an electronic TPS and he doesn't know what he is supposed to do with the original wire going to that when he swaps the FiTech on there. It seems like the GM TPS signal has always been about the same(0.5v to 4.5v), but I have no idea what the FiTech one is.

 

[DoubleDingo]

The FiTEch would replace that system, but I'm pretty sure it is used for the ESC system on those 305's... probably not the same signal.

You DO know that you won't pass california smog with that system... right?

The only CARB legal Carb to EFI conversion I know of is the MSD Atomic EFI: https://www.jegs.com/i/MSD+Ignition...AGq781vzIugQbvP_blnLQeFNNGph7PpxoCWjAQAvD_BwE

I was curious, Holley has an Atomic TBI that is also legal in CA

https://www.holley.com/products/fuel_systems/fuel_injection/atomic_efi/atomic_efi_tbi/parts/2910

https://www.holley.com/products/fuel_systems/fuel_injection/atomic_efi/atomic_efi_tbi/parts/2900

 

[TotalyHucked]

Maybe we are all confused on what is being asked here. I read his initial post as his original quadrajet has an electronic TPS and he doesn't know what he is supposed to do with the original wire going to that when he swaps the FiTech on there. It seems like the GM TPS signal has always been about the same(0.5v to 4.5v), but I have no idea what the FiTech one is.

I went back and re-read, I think you're right.

 

[Bextreme04]

I was curious, Holley has an Atomic TBI that is also legal in CA

https://www.holley.com/products/fuel_systems/fuel_injection/atomic_efi/atomic_efi_tbi/parts/2910

https://www.holley.com/products/fuel_systems/fuel_injection/atomic_efi/atomic_efi_tbi/parts/2900

Holley owns MSD... it's the same one(even has the same part numbers). You can even see in the pictures that everything is labeled MSD and the TBI has MSD molded into the end of it.

 

[martingmc86]

The FiTEch would replace that system, but I'm pretty sure it is used for the ESC system on those 305's... probably not the same signal.

You DO know that you won't pass california smog with that system... right?

The only CARB legal Carb to EFI conversion I know of is the MSD Atomic EFI: https://www.jegs.com/i/MSD+Ignition...AGq781vzIugQbvP_blnLQeFNNGph7PpxoCWjAQAvD_BwE

I’m also worried about that what should I do with that connection since my distributor does have that connection

 

[martingmc86]

I don’t need it to be smog complaint I want to know if the TPS needs to be spliced in to the fintech and the ESC still need to be connected thank you guys for your help

 

[DoubleDingo]

Holley owns MSD... it's the same one(even has the same part numbers). You can even see in the pictures that everything is labeled MSD and the TBI has MSD molded into the end of it.

DUH!...lol... I was quickly looking and didn't see the details. Ironically, though, both kits on the Holley website are CARB compliant, but both are not on JEGS.

 

[DoubleDingo]

My apologies @martingmc86 for derailing your thread.