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2003 S80 bi-fuel won’t switch to LPG

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Old Jan 27th, 2018, 23:43   #1
Bu5hy
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Angry 2003 S80 bi-fuel won’t switch to LPG

recently bought a 2003 s80 bi-fuel ( wife won’t let me drive the 2.5T anymore) anyway got it for a steel as the LPG system didn’t work , as I said to the wife “how hard can I be ?” Well :
1. Changed the vapourisor elbow and solenoid
2. fitted a new filter
3. Checked fuses
4. Stripped down the distributor , cleaned thoroughly and found a small piece of (possibly O ring ) stuck in the side of the stepper motor , gave it a little push and it popped out , I now know this was not a good think to do .
5. Found a faulty injector and replaced for new .
6. Checked the plugs ( they’re the multi point type ) going to change for bog standard NGK
7. Got plenty of heat circulating around the regulator.
8. Got a click sound from the boot area when operating the switch but not from the solenoid under the bonnet .
9. Tank is 3/4 full and as metioned there’s gas to the dizzy
10 . Screemed “why won’t you work” at it !

I’ve read all the posts a learnt plenty from the guys on here , I’d be happy right now if it just ran a little , even if it was rough , cut out after 10 miles , misfired , backfired or just broke wind !

Autogas 2000 have been great so far and I’d recommend them highly.

Is there anyone out there with any help , advise or similar experience to mine please ?
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Old Jan 28th, 2018, 11:18   #2
classicswede
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If the vapouriser solenoid is not clicking then have you cleaned inside it?

If clean inside then try a new coil on it
https://www.classicswede.co.uk/Bifue..._10879079.aspx
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Old Jan 28th, 2018, 12:43   #3
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Originally Posted by classicswede View Post
If the vapouriser solenoid is not clicking then have you cleaned inside it?

If clean inside then try a new coil on it
https://www.classicswede.co.uk/Bifue..._10879079.aspx
It’s clean inside and a bought a new coil from yourselves, there’s no power to it , had a multi meter on the leads and there’s no voltage when the switch is activated (engine hot or cold)
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Old Jan 29th, 2018, 17:47   #4
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Looks like your might be best replacing teh front end for a propper system
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Old Jan 30th, 2018, 08:55   #5
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Have you checked the solenoid operation by applying 12v from an external supply to see if it switches?
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Old Jan 30th, 2018, 13:22   #6
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Have you checked the solenoid operation by applying 12v from an external supply to see if it switches?
Cheers for that , I haven’t to be honest I’ll give that a go , that one should activate with the switch along with the rear one (obviously) I was wondering if the temperature sensor in the head would have to send a signal before the front one would operate.
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