PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

Fried ECM.... maybe

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Old Oct 22, 2013 | 06:47 PM
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blackbird formula's Avatar
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Default Fried ECM.... maybe

First off, id like to say, never try and detail an extremely dirty motor yourself. Pay a professional, it will be worth it.

Now to the real reason im posting. Last week, like you probably have figured out by now, i detailed my ls1. After i blew all the water out with compressed air and a leaf blower, i drove the car for 15 minutes or so. After i let it sit overnight i woke up to a car that had all electronics working, just nothing to the starter, no click, no hum, nothing.

After a little research on here i realized it could be a slew of things and with work didn't have time to mess with it, i took it to a local shop.

Today they tell me they're 99% sure i fried the PCM. I know this is Defcon 1 of things that could have gone wrong.

My question is, what price range should i be looking at to fix it.
They're immediate quote 1500-2k or more. Fair or Ridiculous?

I realize my post count is tiny, and my join date is recent. Trust me ive been following this site for years. Any help would be greatly appreciated.
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Old Oct 22, 2013 | 08:17 PM
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I doubt you fried the PCM. If it was that fragile, they'd be dying all over the place when driven in the rain.

Also, 1500-2000 for a PCM replacement is nuts.
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Old Oct 22, 2013 | 11:45 PM
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Originally Posted by blackbird formula
They're immediate quote 1500-2k or more. Fair or Ridiculous?
That depends on whether or not that includes the Vaseline.
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Old Oct 23, 2013 | 01:25 AM
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I paid just over $150 for a reman 411 PCM from gmpartsdirect.com after returning the core. That should give you an idea of how deep they are trying to get into you without the Vaseline lol.
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Old Oct 23, 2013 | 05:37 AM
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Used PCM go for $35 and a stock flash from a mail order tuner costs like $75. Spend the cash and move on.
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