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Disabling 4 cylinder mode.

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Old Oct 24, 2024 | 09:46 AM
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Default Disabling 4 cylinder mode.

Just wondering if anybody has tried this. On the front of the valley plate, VLOM, there are two plugs, one for oil pressure, the other for operating the 4 cylinder mode. Has anybody tried unplugging this instead of using the ODB disabler?
Would this pop codes?

Last edited by kodpkd; Oct 24, 2024 at 10:04 AM.
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Old Oct 25, 2024 | 12:18 AM
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there may be helpful information for you here: https://www.corvetteforum.com/forums...-vlom-mod.html
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Old Oct 26, 2024 | 07:54 AM
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Best to use a Range or Tune it out.

Your choice.
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Old Oct 26, 2024 | 01:06 PM
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Originally Posted by kodpkd
Just wondering if anybody has tried this. On the front of the valley plate, VLOM, there are two plugs, one for oil pressure, the other for operating the 4 cylinder mode. Has anybody tried unplugging this instead of using the ODB disabler?
Would this pop codes?
Why would u ??? Just use the range
Dave
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Old Oct 26, 2024 | 01:11 PM
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So you wouldn't have to use a disabler. If it worked, it would be so easy.
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Old Oct 26, 2024 | 01:50 PM
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Originally Posted by kodpkd
So you wouldn't have to use a disabler. If it worked, it would be so easy.
Even with the mod u have to shut it off in the tune ...

Lot of work just to shut it off , either in the tune or with a range

Dave
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Old Oct 26, 2024 | 04:32 PM
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What I am wondering,,,,, without the mod and without the tune, without the Range, would unhooking the connection disable the 4 cylinder mode. The connection isn't that hard to get to.
Also I am not sure what effect it would have long term on the engine.

Last edited by kodpkd; Oct 26, 2024 at 04:44 PM.
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Old Oct 26, 2024 | 04:49 PM
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Originally Posted by kodpkd
What I am wondering,,,,, without the mod and without the tune, would unhooking the connection disable the 4 cylinder mode. The connection isn't that hard to get to.
Also I am not sure what effect it would have long term on the engine.
Not without popping a code ..... The Range actually clears the codes on every start , hence the reason why you need to pull it out before going thru emissions testing as it clears the drive cycle tests also

Turning it off in the tune and then setting the code to "not report"is the best way , Emissions tests allow for 1 or 2 to be set to not report and still pass ....

Dave
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Old Oct 27, 2024 | 11:26 PM
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Originally Posted by Tinkertech
Best to use a Range or Tune it out.

Your choice.
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Old Oct 28, 2024 | 10:19 AM
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Originally Posted by kodpkd
What I am wondering,,,,, without the mod and without the tune, without the Range, would unhooking the connection disable the 4 cylinder mode. The connection isn't that hard to get to.
Also I am not sure what effect it would have long term on the engine.
Pretty much anything you unplug under the hood is going to lead to a CEL.
Range ra003 devices are on sale, the sale ends today
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Old Oct 28, 2024 | 10:46 AM
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Kind of what I figured.
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Old Nov 16, 2024 | 06:12 PM
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I just installed my programed ECM. I got the LT1SWAP 4 cylinder delete mode done, along with the VLOM mod. No more device plugged into the OBDII, no more 4 cylinders. Works good.
A side note. I didn't disconnect the battery to do the ECM change, all is good.

Last edited by kodpkd; Nov 17, 2024 at 12:57 PM.
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