3.4 Swaps The 3.4 V6 Toyota engine

evap

Old Oct 25, 2008 | 11:26 AM
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evap

just curious if i could eliminate all the evap stuff, will it run right if i do?
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Old Oct 25, 2008 | 11:38 AM
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evap

hey all im in the middle of doing a 3.4 swap and im curious if i can eliminate the evap system, there is no emissions tests here so i dont need it, but will it run right?
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Old Oct 25, 2008 | 03:28 PM
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do some of you guys have no evap on your tacomas from the factory?
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Old Oct 25, 2008 | 03:29 PM
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just asking cause there is no connections for it in my harness
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Old Oct 25, 2008 | 05:11 PM
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does anyone know what this connector is for? its in place of where the evap stuff is
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Old Oct 25, 2008 | 05:35 PM
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I'm not running any of the EVAP stuff and can't tell if there's a difference, or not, since I never drove the 3.4 prior to swapping.

If you can get a better pic of the connector, I might be able to identify it. It looks like it might be the EVAP connectors. I'd have to look at my engine, but I'm pretty sure I just left those to up near the firewall.
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Old Oct 25, 2008 | 06:09 PM
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i see, well i think im not gonna hook it up, do you have a knock sensor cause there is none on my motor, its blocked off
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Old Oct 25, 2008 | 09:39 PM
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Knock sensor?

Or do you mean EGR valve?
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Old Oct 26, 2008 | 07:05 AM
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nope all my egr stuff is also blocked off, dont these motors have a knock sensor threaded in the side of the block? if so i dont have one

Last edited by cartune777; Oct 26, 2008 at 07:06 AM.
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Old Oct 26, 2008 | 07:49 AM
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It will run just fine,but you will need to vent the tank and block the evap ports on the intake........Then you need to deal with the CEL staying "on"...
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Old Oct 26, 2008 | 07:56 AM
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You can take it off if you'd like but like 97ltd4x4 said you'll have to deal with the CEL on. Your not really going to gain anything by removing it so I'd say leave it on.
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Old Oct 26, 2008 | 10:08 AM
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knock sensors

The 3.4L has two knock sensors under the intake manifold, same area as the 3.0L.

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Old Oct 26, 2008 | 12:33 PM
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ahh ok, thanks for clearing that up, that one wire plug must go to the ac then
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Old Oct 26, 2008 | 02:36 PM
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Wow...that is the cleanest 3.4 I've ever seen! Mine looks nothing like that!
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Old Oct 27, 2008 | 05:33 AM
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The most gratifying things about rebuilding an engine are (in no particular order):

1. The engine is essentially new.
2. You know what condition it is in.
3. Everything is CLEAN .
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Old Oct 27, 2008 | 07:37 AM
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yeah that looks good, does the fuel pressure regulator vacuum hose plug straight into the manifold or do i have to hook it up to a vsv? if so which hoses go where on the vsv?
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Old Oct 27, 2008 | 08:42 AM
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I don't remember off the top of my head so I'll check it out for you after work.
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Old Oct 27, 2008 | 08:54 AM
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awesome, thanks
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Old Oct 27, 2008 | 11:51 AM
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Originally Posted by cartune777
does anyone know what this connector is for? its in place of where the evap stuff is
It looks alot like this one:

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Old Oct 27, 2008 | 04:36 PM
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i think im going to remove all the evap stuff.
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