ECM upgrade.

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Apr 3, 2013 | 06:57 PM

JDC

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From: Ontario,Canada

ECM upgrade.

I'm putting a 408 in a 1999 RCSB and was wondering and think i read somewhere on here a while ago that the ECM's in these trucks are tuning limited. Is it better to go with the 01 and 02 Gen3 ECM's ?

Apr 3, 2013 | 07:11 PM

BLK02WS6

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From: on the dyno tuning in MD

There would be no problem using a 99 PCM with a 408. You should upgrade the OS to a newer 02 OS though (older ones are knock prone and can't be upgraded to a custom OS)...

Last edited by BLK02WS6; Apr 3, 2013 at 07:24 PM.

Apr 3, 2013 | 09:04 PM

Ws6Luvr

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From: Dallas Texas

Quote:

Originally Posted by BLK02WS6

There would be no problem using a 99 PCM with a 408. You should upgrade the OS to a newer 02 OS though (older ones are knock prone and can't be upgraded to a custom OS)...

Can this be done with a Tech 2?