Killed my PCM..
Thread Starter
|
Elder User
Joined: Jan 2005
Posts: 561
Likes: 2
From: Willow River B.C.
Killed my PCM..
Picked up a TW 6 position chip from a previous owner of my truck. Strange coincidence, anyway I went to install it tonight and pulled the pcm, cleaned up the contacts and plugged in the chip and tried it before re-assembling everything. High idle etc all seemed to work fine so I installed the pcm and ran the wiring up to the a-pillar, started the truck up and the high idle wasn't working.
I could switch through all positions and it seemed to be working right excedpt no high idle so I thought maybe the plug became dislodged while I was installing it or running the wires. Removed the park brake and the plug was fully seated in the pcm. started it up a few times wiggling connections between starts then on the 3rd or 4th try the truck started up and died then would not restart.
Tried removing the chip, fuses are all good, removed and re-installed the pcm connector, no wts light, cel is on, and scanner can not communicate with the computer.
Did this chip kill my PCM? Where is a reputable place to buy another one?
I could switch through all positions and it seemed to be working right excedpt no high idle so I thought maybe the plug became dislodged while I was installing it or running the wires. Removed the park brake and the plug was fully seated in the pcm. started it up a few times wiggling connections between starts then on the 3rd or 4th try the truck started up and died then would not restart.
Tried removing the chip, fuses are all good, removed and re-installed the pcm connector, no wts light, cel is on, and scanner can not communicate with the computer.
Did this chip kill my PCM? Where is a reputable place to buy another one?
PREMIUM SPONSOR
Joined: Dec 2012
Posts: 750
Likes: 0
From: Oakdale, CA
It sounds like it very well could have fried the PCM. The no WTS light and unable to communicate with the PCM are tell tale signs of fried PCM's if the fuse is not blown. Wiggling the chip/connections with the key in the ignition is usually what causes it.
You can get them from auto parts stores, Ford, or search the classifieds on these forums.
You can get them from auto parts stores, Ford, or search the classifieds on these forums.
FOREIGN GURU
Joined: Jul 2006
Posts: 7,655
Likes: 7
From: Celaya, Gto. MX
It sounds like it very well could have fried the PCM. The no WTS light and unable to communicate with the PCM are tell tale signs of fried PCM's if the fuse is not blown. Wiggling the chip/connections with the key in the ignition is usually what causes it.
You can get them from auto parts stores, Ford, or search the classifieds on these forums.
You can get them from auto parts stores, Ford, or search the classifieds on these forums.
Thread Starter
|
Elder User
Joined: Jan 2005
Posts: 561
Likes: 2
From: Willow River B.C.
Well I guess I am looking for a used one. parts stores have nothing available, all back ordered. Diesel shops say to check ebay they don't even have a source for them.
I had a 99 7.3 at work for a while and the chip used to come loose regularily but I just had to wiggle it and the truck would start right up, never wrecked anything.
I had a 99 7.3 at work for a while and the chip used to come loose regularily but I just had to wiggle it and the truck would start right up, never wrecked anything.
FOREIGN GURU
Joined: Jul 2006
Posts: 7,655
Likes: 7
From: Celaya, Gto. MX
Well I guess I am looking for a used one. parts stores have nothing available, all back ordered. Diesel shops say to check ebay they don't even have a source for them.
I had a 99 7.3 at work for a while and the chip used to come loose regularily but I just had to wiggle it and the truck would start right up, never wrecked anything.
I had a 99 7.3 at work for a while and the chip used to come loose regularily but I just had to wiggle it and the truck would start right up, never wrecked anything.
FOREIGN GURU
Joined: Jul 2006
Posts: 7,655
Likes: 7
From: Celaya, Gto. MX
Postmaster
Joined: Nov 2005
Posts: 3,168
Likes: 10
From: San Ramon Ca.
You could try sending the unit to Python Injection and see if it can be repaired. Good outfit. Might be worth a try.
Trending Topics
Thread Starter
|
Elder User
Joined: Jan 2005
Posts: 561
Likes: 2
From: Willow River B.C.
Well after arguing with a guy at the autowrecker today for 15 mins I got him to sell me a rebuilt/reflashed PCM from a 97 auto for $100. Employee there sent it out and the truck got wrecked before it came back. Truck runs fine, cruise still works too.
Gonna send the T&S chip out to someone to have it check and probably some new tunes before I try it again.
Gonna send the T&S chip out to someone to have it check and probably some new tunes before I try it again.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
Cargo Master
Joined: Nov 2006
Posts: 2,171
Likes: 20
From: Denton, TX
Can PCMs be swapped like IDMs can...meaning the newer/higher voltage the better? Or if a spare PCM is being hunted what needs to be the same....auto/manual trans I suspect is mandatory. Same year?
Thread Starter
|
Elder User
Joined: Jan 2005
Posts: 561
Likes: 2
From: Willow River B.C.
So far the 1997 auto pcm is workin fine with my 1994 5spd. Havent tried the chip again...
Thread
Thread Starter
Forum
Replies
Last Post
Spool&Go
1999 - 2003 7.3L Power Stroke Diesel
1
Oct 29, 2014 10:35 PM
John7894
1999 - 2003 7.3L Power Stroke Diesel
5
Mar 25, 2006 10:33 PM