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2 second start not vats

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Old May 14, 2019 | 12:25 AM
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Default 2 second start not vats
Hi Everybody
Is ther any othher things to adjust without the vats when the engien only fires up
for 2-3 seconds.
Its a 2012 ls3 out of a Camaro used hp tuners to remove vats and clutch errors
the live vcm sas in fuel lo not ready.
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Old May 23, 2019 | 10:56 PM
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I had a similar problem with my build, also happened to be a 2012 Camaro LS3, had to put the intake tube on to get it to run, something about the air over the MAF the computer didn't like and killed it after a few seconds. I sent the ECU to the tuner to try few things and make sure the VATS was turned off but once I simply put the 4" intake tube on I used to connect to the filter it started and ran fine. Can't remember where I read to try it but it doesn't cost anything to give it a try. Good luck.

Rock
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Old May 24, 2019 | 05:38 AM
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From: cain-tuck-ee
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X2 on making sure it has a MAF on it. same issue when i did first fire up on my engine. Put intake tube and MAF on it, fired up immediately
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Old May 24, 2019 | 04:07 PM
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Originally Posted by underpowered
X2 on making sure it has a MAF on it. same issue when i did first fire up on my engine. Put intake tube and MAF on it, fired up immediately
No Did try this but no luck i just dont gert rid of vats for som reason
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Old May 25, 2019 | 01:49 PM
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Low Oil Pressure kill switch?

-KP
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Old May 25, 2019 | 03:27 PM
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As far as I know, GM does not use any sort of low oil pressure safeties. They don't care if you run the engine dry and blow up your junk.

Andrew
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Old May 27, 2019 | 12:26 AM
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Well, my '96 TBI had one.

If Oil Pressure goes away, the Fuel Pump turns off.

-KP
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Old May 27, 2019 | 12:44 AM
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As reported in this thread:

https://ls1tech.com/forums/conversio...-second-2.html

-KP
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Old May 29, 2019 | 01:19 AM
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Default Only 2 second start
Originally Posted by kpeters59
Well, my '96 TBI had one.

If Oil Pressure goes away, the Fuel Pump turns off.

-KP
I have tried everything tried putting vats back in and there was no start at all then took away vats again and got the 2 second start back
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Old May 29, 2019 | 09:10 AM
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Well, I'm just a leach off this Forum, but how is an Oil Pressure Signal getting to the ECM?

-KP
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