pcm fried?
Thread Starter
TECH Regular
Joined: Dec 2011
Posts: 461
Likes: 0
From: Hastings, Nebraska
pcm fried? was trying to upload a tune with cats' flash utility and it erased the tune and then it gave me an error message. I switched the key off, unplugged the cord from the car and then tried again and it wouldnt even connect to the pcm. Tried to start the car after and it just cranked like it had no spark...
That is usually a voltage problem. I have actually seen guys at the race track listening to the radio while flashing their PCM! Hard to not ask "Are you retarded?" Everything off, and a fully charged battery. If you aren't sure about the battery, a trickle charger isn't a bad idea. Tunercat won't fry your PCM, but vehicle issues or operator error certainly will.
Btw, if that ever happens again, do NOT shut the key off! Pull the PCM fuses first! Much better chance of "recovering" the PCM. Turn the key off and you can kiss it goodbye.
Btw, if that ever happens again, do NOT shut the key off! Pull the PCM fuses first! Much better chance of "recovering" the PCM. Turn the key off and you can kiss it goodbye.
That is usually a voltage problem. I have actually seen guys at the race track listening to the radio while flashing their PCM! Hard to not ask "Are you retarded?" Everything off, and a fully charged battery. If you aren't sure about the battery, a trickle charger isn't a bad idea. Tunercat won't fry your PCM, but vehicle issues or operator error certainly will.
Btw, if that ever happens again, do NOT shut the key off! Pull the PCM fuses first! Much better chance of "recovering" the PCM. Turn the key off and you can kiss it goodbye.
Btw, if that ever happens again, do NOT shut the key off! Pull the PCM fuses first! Much better chance of "recovering" the PCM. Turn the key off and you can kiss it goodbye.
Thread Starter
TECH Regular
Joined: Dec 2011
Posts: 461
Likes: 0
From: Hastings, Nebraska
That is usually a voltage problem. I have actually seen guys at the race track listening to the radio while flashing their PCM! Hard to not ask "Are you retarded?" Everything off, and a fully charged battery. If you aren't sure about the battery, a trickle charger isn't a bad idea. Tunercat won't fry your PCM, but vehicle issues or operator error certainly will.
Btw, if that ever happens again, do NOT shut the key off! Pull the PCM fuses first! Much better chance of "recovering" the PCM. Turn the key off and you can kiss it goodbye.
Btw, if that ever happens again, do NOT shut the key off! Pull the PCM fuses first! Much better chance of "recovering" the PCM. Turn the key off and you can kiss it goodbye.
thanks for the fuse info, good to know
when i was taking my pcm out to get all the info off of it to order a new one, i noticed that the plastic clip thing on one of the connectors that plugs into the pcm is broke off. does anyone make them or should i get out the ductape? lol
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TECH Fanatic
Joined: Jan 2004
Posts: 1,157
Likes: 1
From: Kingfisher Oklahoma
Go to a salvage yard and save yourself some money. The Delco ECMs are close to 200$ at parts houses with other brands going for around 120 to 180$. I pick them up from salvage for 80$ plus core!! Remember the B-body computer will work as well (if l99 or LT1).
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TECH Regular
Joined: Dec 2011
Posts: 461
Likes: 0
From: Hastings, Nebraska
whats the years of caprice's and impala's that would work?
TECH Fanatic
Joined: Jan 2004
Posts: 1,157
Likes: 1
From: Kingfisher Oklahoma
Yep just flash it to your car and it will be fine.
You used to be able to get the unflashed ECM from parts stores for under 100$ but those days are past, they were of course not Delco ECMs.
You used to be able to get the unflashed ECM from parts stores for under 100$ but those days are past, they were of course not Delco ECMs.
