VCM flashed crapped out on me....
VCM flashed crapped out on me.... Well Ive seen all the threads about them failing and causing issues. Seen the ones from HPTuners and think, man I hope that never happens to me. So guess what? It happened to me today.
I did a write calibration file only, as I always do, and it always takes 28secs. So today I start it, set the laptop down on the passenger seat as I always do and just wait for it to finish and then notice about 1min later its still going and my dash keep throwing ALL kinds of errors messages, REDUCED POWER, LOW FUEL, SERVER ENGINE SOON, im like "WTF?" I look at the laptop and its only at 18% and I keep seeing it having issues and it keeps trying to write at low speed, it then writes a few percent like 2, then has issues again, like in a never ending loop, during this whole time, my dash keeps going wild with those errors constantly changing. I stayed calm and said, lets just abort it cause its been 3mins and its getting no where.
So Turn the ignition off, turn the ignition back on and try the write calibration file again. This time it says going into Recovery and writes the calibration in 28secs and done, start car, good to go.
THIS is why I love HPTuners. Defintely key to only do Write Calibration to avoid frying the VCM.
Dixit
I did a write calibration file only, as I always do, and it always takes 28secs. So today I start it, set the laptop down on the passenger seat as I always do and just wait for it to finish and then notice about 1min later its still going and my dash keep throwing ALL kinds of errors messages, REDUCED POWER, LOW FUEL, SERVER ENGINE SOON, im like "WTF?" I look at the laptop and its only at 18% and I keep seeing it having issues and it keeps trying to write at low speed, it then writes a few percent like 2, then has issues again, like in a never ending loop, during this whole time, my dash keeps going wild with those errors constantly changing. I stayed calm and said, lets just abort it cause its been 3mins and its getting no where.
So Turn the ignition off, turn the ignition back on and try the write calibration file again. This time it says going into Recovery and writes the calibration in 28secs and done, start car, good to go.
THIS is why I love HPTuners. Defintely key to only do Write Calibration to avoid frying the VCM.
Dixit
TECH Senior Member
Joined: Nov 2001
Posts: 7,036
Likes: 1
From: Lake Zurich, IL
The HP Tuners VCM Recovery option definetly owns 
They were the first ever to offer this functionality (I killed a PCM w/LS1 Edit or rather.. edit couldn't recover)
Just another example of why HP tuners is the best
They were the first ever to offer this functionality (I killed a PCM w/LS1 Edit or rather.. edit couldn't recover)Just another example of why HP tuners is the best
Without question. I think I pinpointed the problem. Seems like the connection on the box with the serial cable is somehow loose which maybe caused it when I put the laptop on the seat and the cable probably moved, even though everything is screwed down into the black box. Guess its time to send it in for the new USB Ive been waiting to do anyways.
Dixit
Dixit
wait a sec., so you dont need to do the "get pcm id", "read pcm", "write pcm"???, you can just skip to the "write pcm" and it only takes 27sec. instead of 3min., ..????
btw, I was stuck in my car for 45min. one day when it did that and I thought if I do anything I would loose the pcm, thank goodness I rolled my windows down a few inches before I started, around noon in a home depot parkinglot, lol...
btw, I was stuck in my car for 45min. one day when it did that and I thought if I do anything I would loose the pcm, thank goodness I rolled my windows down a few inches before I started, around noon in a home depot parkinglot, lol...
write cal only is whats recommended because you can recover...doing full rewrites everytime can cause vcm failure without recovery.
"Write Calibration Only" is the regular, safest and fastest way to rewrite the VCM. ALWAYS use "Write VCM" when making regular tuning changes."
strait from www.hptuners.com/help
"Write Calibration Only" is the regular, safest and fastest way to rewrite the VCM. ALWAYS use "Write VCM" when making regular tuning changes."
strait from www.hptuners.com/help
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