I have an 08 Yukon XL with a bad PCM. Due to the fact that I did an engine swap and put straight pipes on it a few years ago, I had to get some computer reprogramming done. Is there any company out there that can take and fix the PCM since it is already programmed for the engine that is in it? Or is there a company I can buy a new PCM from that can program the computer with what is needed before they send it to me? Thanks for your help.
PCM problems :(
- Thread starter JasonD08
- Start date
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strutaeng
Full Access Member
How was the PCM diagnosed as bad? Very rare that they go bad, but anything is possible.
I usually see guys having some issues, firing the parts cannon, then concluding it's a bad PCM after that approach fails. The issue usually lies somewhere else... I'm just saying here...
I usually see guys having some issues, firing the parts cannon, then concluding it's a bad PCM after that approach fails. The issue usually lies somewhere else... I'm just saying here...
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Marky Dissod
Full Access Member
It's more likely that whatever made the pcm look or even actually go bad,
will do the same to the replacement pcm.
Usually but not always applies to wiring / connector issues.
Example: under a year ago I replaced my knock sensors under the intake manifold.
This morning my Tahoe threw the exact same codes.
While it's certainly possible that the new knock sensors are the problem (GM OE ain't what it used to be),
it's more likely the wiring / connectors are at fault; I should look into some kind of GM OE upgrade.
