I got my email tune from Ion today and tried to install it tonight and it kept saying: error code...cannot communicate w/PCM
then the fans will come on w/only the key to on position and i tried to start the car and it wont start..its like the PCM is fried???what do i do??i emailed Ion but i think hes away from the computer...im freaking out

 

Do you have a free scan tool (or one you bought)? Will it connect?

With the fans operating but you getting an error code... doesn't sound good

 

The same thing happened to me when I did my PCMforless tune. If the flash goes wrong, the two small chips inside become corrupted. I got my fix by paying for an exchanged PCM from ION (madwolf) with a ZIF socketed board to future proof myself against a bad flash. The ZIF sockets allow you to replace the corrupted chips yourself. So basically, you need to get in contact with ION and do a PCM swap.

Hammer

 

no...heres what happened..my laptop bonked out during the READ of the stock PCM...so i popped off the negitive terminal on the battery for 10 min...hooked it back up..then the car ran...then i tried again and got through (this time i connected the labtop into the wall for backup) then i ran both read and write programs and walaaaa it worked....i had a big scare though...Ion helped me through it he is a good guy......tune is nice as well...shift firmness is perfect among others...

 

yep, i've had the same thing happen before during a read. it can be plain scary when the car doesn't start afterwards. i always do a read before i attempt to flash the pcm. glad it worked out.

 

Ahh... that is a HUGE difference than it crapping out on you during the WRITE which is what it sounded like happened from what you said in your original telling of the tale Had you mentioned it happened during the READ, I would have told you to just pull the PCM fuse for a minute

 

ya my bad...i thought i was ****** when brent didnt know what to do

 

Well, I just happen to have experience in this area and know that most all the time a failure on a READ is no biggie and can be easily "fixed" by resetting the PCM. However, a failure on the WRITE is a different story