NEED PCM CODE BHMX

[94singlecab350]

Hi I have a 1994 Silverado 5.7 and I need a prom chip code BHMX. The problem is I can’t find it anywhere I’ve been looking and I can’t find it can anybody help me find one or sell me one.Thanxs

 

[PlayingWithTBI]

I have a 1994 Silverado 5.7 and I need a prom chip code BHMX.

There's a couple on www.gearhead-EFI.com/bin - you may have to join to gain access.

You must be registered for see images attach

 

[94singlecab350]

I can buy one there ??the link doesn’t work brother

 

[1998_K1500_Sub]

I can buy one there ??the link doesn’t work brother

You download the binary file and then "burn" it into a an EPROM / ROM. That's how it works.

Then you need to mount the EPROM / ROM in a carrier that plugs into the ECU, like this one pictured:

You must be registered for see images attach

That's how I do it anyway.

The EPROM / ROM plugs into the socket on the left side of the picture.

And your old MEMCAL plugs into that bank of pins on the right side of the picture.

Easy-peasy.

 

[94singlecab350]

Does anyone know how to do that ?? Or is there. Tutorial

 

[PlayingWithTBI]

Does anyone know how to do that ?? Or is there. Tutorial

What I posted above was a screenshot to show you.

Here's some light reading
www.gearhead-efi.com/Fuel-Injection/forumdisplay.php?27-TunerPro-Tuning-Talk

TunerPro Tuning Talk

Tutorials, Write Ups, Tips and Questions!

www.gearhead-efi.com

 

[1998_K1500_Sub]

Does anyone know how to do that ?? Or is there. Tutorial

Many of us here do.

 

[94singlecab350]

You download the binary file and then "burn" it into a an EPROM / ROM. That's how it works.

Then you need to mount the EPROM / ROM in a carrier that plugs into the ECU, like this one pictured:

You must be registered for see images attach

That's how I do it anyway.

The EPROM / ROM plugs into the socket on the left side of the picture.

And your old MEMCAL plugs into that bank of pins on the right side of the picture.

Easy-peasy.

Ok where do I get a Carrier at??

 

[MIHELA]

BoostedNW might get them back in stock at some point. You need this: G1 adapter. OBD1 stuff is getting harder to find since Moates went out of business. Alternatively you can solder a 27FS512 chip in place of the original ROM inside your memcal but that is not especially easy unless you are good at soldering. 27FS512s are getting very scarce nowadays since they've been out of production for years so if you have no intention of burning the chip multiple times you can use a EPROM. Then you can burn the chip on a chip burner like my XGecu T48 and a memcal adapter to burn the chip. Finding an original memcal from a 94 or 95 truck from the junkyard might be easier!

 

[PlayingWithTBI]

Ok where do I get a Carrier at??

I would suggest you do some reading and research before you decide what route you wanna go or, you'll waste time and money changing directions midstream.