Hello from MO

[JoeTexan1962]

Hi, everyone. My name is Joe Henderson and I live in the Kansas City area. I have a 1989 Suburban V2500 with a 5.7L / TH400. I'm currently using an Android phone with ALDLdroid to do some diagnostics, but I'm also interested in learning how to burn my own PROM.

[dave w]

gearhead-efi link for the 1227787 ECM - http://www.gearhead-efi.com/Fuel-Inj...Information-4F

gearhead-efi link for the 1227747 ECM - http://www.gearhead-efi.com/Fuel-Inj...Information-42

There are several options for burning TBI chips. One possible option is to convert the TBI computer to use a "Flash Chip" - http://www.gearhead-efi.com/Fuel-Inj...sion-(27SF512)

The original 2732 chip requires an ultra violet light to erase the chip before reprogramming. The 27SF512 "Flash Chip" is electronically erased and can be erased / reprogrammed using a Moates.net Burn 2 - https://www.moates.net/burn2-chip-programmer-p-197.html The Burn 2 Can Not program a 2732 chip.

dave w

[PlayingWithTBI]

gearhead-efi link for the 1227787 ECM - http://www.gearhead-efi.com/Fuel-Inj...Information-4F

gearhead-efi link for the 1227747 ECM - http://www.gearhead-efi.com/Fuel-Inj...Information-42

There are several options for burning TBI chips. One possible option is to convert the TBI computer to use a "Flash Chip" - http://www.gearhead-efi.com/Fuel-Inj...sion-(27SF512)

The original 2732 chip requires an ultra violet light to erase the chip before reprogramming. The 27SF512 "Flash Chip" is electronically erased and can be erased / reprogrammed using a Moates.net Burn 2 - https://www.moates.net/burn2-chip-programmer-p-197.html The Burn 2 Can Not program a 2732 chip.

dave w

Can you replace the OE EPROM with the 27SF512 or do you need an adapter?

[dave w]

The original 2732 TBI chip is 24 pins.

The Flash Chip 27SF512 is 28 pin.

The are multiple options / modifications that allow using the 27SF512 chip in a TBI computer. To the best of my knowledge, there IS NOT plug-n-play option for installing the 27SF512 chip into the TBI computer.

The ULTIMATE LOW COST option allowing the 27SF512 chip into a TBI computer unitizes intermediate soldering skills.

Many members consider working with the original 2732 TBI chip a PAIN IN THE A$$ (wallet)

dave w