Help! Need someone to reprogram a GM ECM - Lateral-g Forums

ProTouring442 · #1 07-10-2007, 03:21 AM

Hey guys!

Doing a little upkeep on my Dad's car;

Back when we built it, we used Howell Engineering for the harness and ECM. Big mistake! Their customer service sucked! After correcting a missplaced wire (ok, that happens), we still had problems. After double checking EVERYTHING, I came up with a bad ECM. The car would, while in closed loop, suddenly run so rich it would bellow black smoke, and hardly run. Then, just as quickly it would clear! Never set a code, and all perameters looked good. After arguing that "it can't do that," I finally got them to agree that it must be the ECM. But when they sent the replacement (and that took a bit of arguing!) it idles too high.

My point:

I need to get the ECM reprogrammed. It's a pre-OBD2 (not an OBD-2) ECM from an LT-1 running an LT-4 Corvette assembly-line engine. Can anyone reccomend a good place to get this done?

Thanks!
Bill

**130fe** · #2 07-10-2007, 04:29 AM

I use these guys for my pcm reprograms:
Bryan Herter
Lead Programmer of 94 and newer cars and trucks for
WWW.PCMFORLESS.COM
724-349-4431 M-F 9AM to 7PM Eastern

They provide a wide range of pcm/ecm programming for different years. They have great customer service and fast service!

ProTouring442 · #3 07-10-2007, 05:03 AM

Super! Thanks!!

Shiny Side Up!
Bill

69Lt4 · #4 07-10-2007, 08:29 AM

Agree with 130FE. Bryan is great to work with.
Kevin

HAULNSS · #5 07-10-2007, 11:36 AM

I also run a PCMforless tune from Bryan Herter in my Impala.

I have since had a local guy do a little tweaking to it, but Bryan is the main guy all the Impala SS crowd uses.

Good luck,
Randy

ProTouring442 · #6 07-10-2007, 08:12 PM

You guys rock!

Shiny Side Up!
Bill