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2.4L LE5 Performance Tech 16 valve 171 hp EcoTec with 163 lb-ft of torque

What is PCM, TCM, and ECM??

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Old Sep 14, 2009 | 10:57 PM
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What is PCM, TCM, and ECM??
What do all of these do??
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Old Sep 17, 2009 | 01:27 AM
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TCM is Transmission computer, PCM is powertrain computer, ECM is engine computer,

most cars have 3 computers,

TCM, ECM, BCM

where bcm is the body computer, all of them comunicate with each other
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Old Sep 19, 2009 | 09:41 PM
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Originally Posted by senior_brown
TCM is Transmission computer, PCM is powertrain computer, ECM is engine computer,

most cars have 3 computers,

TCM, ECM, BCM

where bcm is the body computer, all of them comunicate with each other
ok so which one is the best to upgrade??
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Old Sep 19, 2009 | 11:10 PM
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if you are auto getting a shift kit/tune for the TCM is a nice help. manual it is useless. the PCM/ECU is interchangable depending on what that manufactor wants to call things.
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Old Sep 20, 2009 | 12:10 AM
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TCM-Transmission Control Module
PCM-Powertrain Control Module
ECM-Engine Control Module

The best to upgrade is by far the ECM.
"Getting a tune"-->"upgrading" the engine's "brain" --> ECM.
Significant power gains depending on your application and power adders.
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Old Sep 20, 2009 | 10:20 PM
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Originally Posted by cobalt9123
TCM-Transmission Control Module
PCM-Powertrain Control Module
ECM-Engine Control Module

The best to upgrade is by far the ECM.
"Getting a tune"-->"upgrading" the engine's "brain" --> ECM.
Significant power gains depending on your application and power adders.
ok so you know any site that carries them??
thanks!!
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Old Sep 21, 2009 | 07:47 PM
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Not off of the top of my head..are you looking to get a tune for the 2.4?
If you are, I wouldn't suggest getting a tune while you're stock.
LMK
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Old Sep 23, 2009 | 09:16 PM
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Originally Posted by cobalt9123
Not off of the top of my head..are you looking to get a tune for the 2.4?
If you are, I wouldn't suggest getting a tune while you're stock.
LMK
my 2.4 is stock and i dont plan on doing any thing major to it for a WHILE
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Old Sep 23, 2009 | 11:15 PM
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Then you DON'T need a tune..
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