3.4 Swaps The 3.4 V6 Toyota engine

2003 5vz

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Old 01-20-2010, 05:09 PM
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2003 5vz

Found a 2003 manual 5vz, with complete harness and computer... other than it is fly by wire is their any reason that it can't be used. Or would I be better served to ditch the harness for an older one that isnt fly by wire...
Old 01-25-2010, 01:25 PM
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Any takers,

I have read on the board that the fly by wire is troublesome any truth to this? (per Mt. Goat)

I picked up a 2003 5vz throttle by wire and ecu supposed to be a manual (however I have been told that only autos had throttle by wire)... Not sure on either account


Any help is greatly appreciated...

Last edited by Okiyota; 01-25-2010 at 01:41 PM.
Old 01-28-2010, 07:28 AM
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Here are some pictures









Old 01-28-2010, 07:40 AM
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I've heard that fly-by-wire ties into the auto tranny a little differently, which wouldn't be a problem in your case though.

Nice motor, looks very complete
Old 01-28-2010, 12:37 PM
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Alright going to get rid of the 2003 harness and ecu in favor of an older one.
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