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Old Jun 25, 2005 | 06:36 PM
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Default Proprietary Tunes

I am having overheating problems with my car. The fans are not coming on to pull air through the radiator. Checked the fuses and they were fine. Had a forum member (Scooter) hook up his HP Tuner, check the mechanicals, and he could turn on the fans. However, while I am driving, I am getting temps of 235-245. My question, is the tune that is done by the vendor who installed my S/C proprietary, or can I have another tuner go in to the tune to change the temperature that the fans turn on?
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Old Jun 25, 2005 | 06:38 PM
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Who tuned it? Some tuners will lock your PCM, others not.
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Old Jun 25, 2005 | 06:41 PM
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I had my S/C and tune done at LPE.
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Old Jun 25, 2005 | 06:47 PM
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Usually, from my understanding they will lock your system. for liability issues. dont want anybody messin around with thier tune.
if not, and somebody changes something and goofs it up and then u try and blame it them..understandable...
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Old Jun 25, 2005 | 06:50 PM
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Does this mean that I have to send my car to them to reset my fan temperatures in my PCM.
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Old Jun 25, 2005 | 07:25 PM
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Originally Posted by DeJay
Does this mean that I have to send my car to them to reset my fan temperatures in my PCM.
No, give them a call they probably have a copy of your tune and at the most you will have to send them your PCM
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Old Jun 27, 2005 | 07:29 AM
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If someone else changes LPE's tune, you will void your warrenty. Did it just start doing this or has it done it since day one? Have you pulled codes to see if you have any? Some take a couple of events before it sets the mill. Have you checked to see if your fans are actually coming on when the car gets to ~175-180 deg ECT? I seriously doubt that it is in the tune. I think you probably have an issue with your fans. If your buddy looked at the tune with HP tuners, he should be able to see where they set the fans to come on at..

Jersey
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Old Jun 27, 2005 | 11:00 AM
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Originally Posted by Jerseyboy
If someone else changes LPE's tune, you will void your warrenty. Did it just start doing this or has it done it since day one? Have you pulled codes to see if you have any? Some take a couple of events before it sets the mill. Have you checked to see if your fans are actually coming on when the car gets to ~175-180 deg ECT? I seriously doubt that it is in the tune. I think you probably have an issue with your fans. If your buddy looked at the tune with HP tuners, he should be able to see where they set the fans to come on at..

Jersey


LPE locks your PCM for various reasons.
If you have had your car back for awhile it's not the tune.
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Old Jun 27, 2005 | 11:08 AM
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Originally Posted by jersey jay


LPE locks your PCM for various reasons.
If you have had your car back for awhile it's not the tune.
this may be true w/ your LPE, but 21st century in dallas did NOT lock mine.when the juice was installed, we went in & pulled timing just to be safe.no problems accessing the tune that was originally done at 21st.
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Old Jun 27, 2005 | 12:38 PM
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Originally Posted by z06pdq
this may be true w/ your LPE, but 21st century in dallas did NOT lock mine.when the juice was installed, we went in & pulled timing just to be safe.no problems accessing the tune that was originally done at 21st.
That is 21st century, not LPE. LPE programs using different techniques then 21CMC. Most tuning software makes you pay an additional amount to get the locked version. 21st may not have opted for the extra cost.

Accessibility to the PCM also depends on what software you are using to do the tuning with. There are ways that you can get into a locked PCM. Nothing is truely "locked" if you have the right tools :-)

Jersey

Last edited by Jerseyboy; Jun 27, 2005 at 12:43 PM.
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Old Jun 29, 2005 | 08:42 PM
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Originally Posted by DeJay
Does this mean that I have to send my car to them to reset my fan temperatures in my PCM.
wish I was as close as you. Have you called them?
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Old Jun 29, 2005 | 08:46 PM
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Originally Posted by Jerseyboy
That is 21st century, not LPE. LPE programs using different techniques then 21CMC.

Jersey
I would think differently since one of the owners of 21CMC is also President and/or PART owner of LPE - or something like that.

Locking doesnt have to be done by either one of them.
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Old Jul 3, 2005 | 07:12 PM
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DeJay,

How are you driving when reaching those temps? Are you driving, stop-and-go, or are you cruising on the highway?

R
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Old Jul 4, 2005 | 11:34 AM
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Originally Posted by MARK's_C5TT
I would think differently since one of the owners of 21CMC is also President and/or PART owner of LPE - or something like that.

Locking doesnt have to be done by either one of them.
I know for a fact that LPE uses proprietary in house software to program the PCM, 21CMC uses LS1 Edit (with locking ability now). You have to remember, they are still 2 different shops. 21CMC is an installer of LPE packages. Much like any other shop is just an installer of a magnuson or ATI blower. Just because they have a common part owner, doesn't necessarily mean that they have the same philosophies and do day to day business the same way. For instance, LPE does not install aftermarket cats (for legal reasons), 21CMC does. 21CMC sells LPE cam grinds, but they also sell cams that LPE doesn't (i.e 21CMC Blower cam). Like I said, 2 different shops, in 2 different parts of the country.

As for locking the PCM, this is more common then you think. I know for a fact that other tuners lock thier PCM's to prevent people from making changes to the tune. It only makes sense when you are offering a warrenty. It helps keep people out of the PCM and doing damage to the car then claiming it as a warrenty issue. But like I said in my previous post, there are ways around that

Happy 4th

Jersey


BTW, did this posters original issue ever get resolved?
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