DP tuner question

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Jun 1, 2009 | 01:19 PM

#16

gasgrunt88

Elder User

Joined: Jan 2008

Posts: 837

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From: Newark, Delaware

Just out of curiosity, what happens if the keys ARE in the ignition???

Jun 1, 2009 | 01:32 PM

#17

wla6518

Senior User

Joined: Mar 2006

Posts: 434

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From: San Antonio, Tx.

you can potentially fry your PCM.
I disconnected both batteries just to be safe.

Jun 1, 2009 | 01:45 PM

#18

BillyBob69

Lead Driver

Joined: Jul 2003

Posts: 7,404

Likes: 52

From: Wheatland, Mo

Quote:

Originally Posted by gasgrunt88

Just out of curiosity, what happens if the keys ARE in the ignition???

When you out your key in the ignisiton, it actually does activate some things. Any "charge" or work that your PCM is doing when you unplug it or plug it back in can cause it to fry.

Jun 1, 2009 | 02:25 PM

#19

gasgrunt88

Elder User

Joined: Jan 2008

Posts: 837

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From: Newark, Delaware

Well it's a good thing that I kept my key out of the ignition. And yes, that little 10mm bolt on the harness is a pain in the @$$!

Jun 1, 2009 | 02:28 PM

#20

BillyBob69

Lead Driver

Joined: Jul 2003

Posts: 7,404

Likes: 52

From: Wheatland, Mo

Quote:

Originally Posted by gasgrunt88

Well it's a good thing that I kept my key out of the ignition. And yes, that little 10mm bolt on the harness is a pain in the @$$!

Interesting....I had a couple of scratches on my hand but nothing on my a$$. How were you trying to take it off?

Jun 1, 2009 | 02:42 PM

#21

HKusp

Lead Driver

Joined: Jun 2007

Posts: 7,760

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From: Hampton, Maryland.

The keys in the ignition is important for sure. The battery being disconnected is not an issue. I and several of us have taken the PCM out multiple times with Jody present and the batteries still hooked up. It isn't a problem at all.

Jun 1, 2009 | 02:46 PM

#22

gasgrunt88

Elder User

Joined: Jan 2008

Posts: 837

Likes: 0

From: Newark, Delaware

Quote:

Interesting....I had a couple of scratches on my hand but nothing on my a$$. How were you trying to take it off?

Ok well I must have been doing something WAY wrong...

Jun 1, 2009 | 10:03 PM

#23

devriesj39

Freshman User

Joined: Oct 2006

Posts: 43

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what have you guys heard about a ts performance chip. we use them on a couple tractors and our combine but i was just wondering what kind of numbers i could get out of a 7.3