Conversions & Swaps LSX Engines in Non-LSX Vehicles
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EVAP Solenoid

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Old Aug 10, 2009 | 04:59 AM
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Default EVAP Solenoid

Can some one explain how the EVap cannister etc works please?

This should be the last little problem sorted before the car goes for MOT.

Im after how the solenoid works.

Cheers
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Old Aug 10, 2009 | 10:33 AM
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It opens to pull fuel vapors into the motor and burn them. Its there to keep the hippies happy.

Last edited by cutlass_455; Aug 10, 2009 at 10:34 AM. Reason: sp
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Old Aug 10, 2009 | 11:59 AM
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The PCM does control the EVAP Solenoid and Valve. The PCM needs input from the fuel take pressure and fuel level. Without those.. the PCM would never open the valve to purge the vapors out of the tank.

If you doing a non-Smog conversion, I would just do alway with it. I just run a Charcoal Canister and use the EVAP Port as a vacuum source for the can on my Chevelle.

If you doing a Certificed SMOG Conversion, You will need to get the sensors in the fuel tanks sender/pickup connected and wired as input to the PCM.
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Old Aug 11, 2009 | 03:32 AM
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So do I need fuel pressure or fuel tankpressure as wellas fuel level?

Does any one have any diagrams on how the system works?

Cheers
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Old Aug 12, 2009 | 04:05 AM
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Bumpage
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Old Aug 12, 2009 | 04:53 AM
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Originally Posted by Pete walsh
So do I need fuel pressure or fuel tankpressure as wellas fuel level?

Does any one have any diagrams on how the system works?

Cheers
What year and car is your harness and pcm from?
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Old Aug 12, 2009 | 07:40 AM
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07 LS7 Corvette
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Old Jul 27, 2010 | 09:43 PM
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Wink Speedy Pete, 72 nova ss

Pete, You would not be the speedy pete that had the 72 ss nova that was in hot rod magazine are you? In case you are what color blue was it? I got the nova now and looking to touch it up. Thanks.
yes or no? need to know if u read this, ty.

Last edited by beddo; Aug 30, 2010 at 09:12 PM.
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Old Jul 6, 2016 | 01:27 PM
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Hi Ty,

I am the Speedy Petey you are looking for. My son found this last night. Email me back and I can answer any question you might have. Look forward to talking to you soon

Speedy Petey

Originally Posted by beddo
Pete, You would not be the speedy pete that had the 72 ss nova that was in hot rod magazine are you? In case you are what color blue was it? I got the nova now and looking to touch it up. Thanks.
yes or no? need to know if u read this, ty.
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