Flagship One pcm

[PlayingWithTBI]

Don’t, at least reputable manufacturers, come with the correct compound?

The ACDelco D1984A comes with a little tube of the stuff. I use Arctic MX4 compound which is commonly used in computer heat sinks.

Edit: after looking at your last post, IDK for sure anymore. I know some people insist dielectric grease works fine too. I'll stick with the MX4 compound...

 

[Caman96]

Isn’t this the correct part? GM 19352931/Acdelco D579

 

[PlayingWithTBI]

Isn’t this the correct part? GM 19352931

It probably is, for the Vortec. I was talking about the TBI ICM which is mounter inside the distributor, sorry.

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[Agibson]

Cutting in and out while driving down the road and you're getting a low voltage code for the ICM? Check your battery connections. Side terminals are horrible for loosening a little and causing stalling.

I'll check those and the connection on the starter too

 

[Agibson]

Checked connection all good new Delphi icm no more low voltage code still stumbling and no codes.

 

[evilunclegrimace]

Checked connection all good new Delphi icm no more low voltage code still stumbling and no codes.

Try and force a code and see if the PCM can recognize the malfunction, What I mean is unplug a sensor that will cause a code to be set and see if the PCM will set the corresponding code. if it will not there is a good chance it has failed. If it set the correct code try a second time with a different sensor just to have some redundacy. If it set the correct codes your problem most likely is some thing else.

 

[Agibson]

I was able to force codes pcm was reading the proper one's.

 

[evilunclegrimace]

Now I would suggest getting ahold of a Fuel and driveability manual for your year truck

 

[Agibson]

I just received a like to some manuals I'm going to look at them after work today.

 

[Rusty_nail59]

I had this problem on my 96 k2500 with the 350, the ICM was fine, I had to replace the pigtail to the ICM. There was a broken wire near the weatherpak connector