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gas conversion, wont run on petrol

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gas conversion, wont run on petrol

Postby zacco » Fri Mar 04, 2016 7:58 am

Hi fellas, friends car, a make that wont be mentioned, 97 efi v6 ,runs on lpg but wont start or run on petrol . This looks like an aftermarket installation. Vehicle is mod plated and job seems to be tidy. Would anyone having any experience with these systems be able to point me in a logical direction for a fault finding exercise.
Disclaimer. I prefer diesels !
Cheers, zacco
1989 2wd rodeo4ze1 soon to be 2.8 T/d auto,manual whatever
zacco
Isuzu Junior
 
Posts: 77
Joined: Tue Jul 16, 2013 6:52 am
Age: 61
Country: Australia
City: kuranda
Vehicle: 1991 Isuzu 2.8 t/d,
Mods , holden badges removed, tweaked fuel pump
1991 rodeo d/cab 4ZE1 auto , the horror , the horror !

Re: gas conversion, wont run on petrol

Postby geeves » Fri Mar 04, 2016 4:34 pm

If its been running dedicated gas then the first question has to be is there petrol to run on?

Did it use to run as dual fuel or has it never had petrol since the conversion?
If you take the fuel line off the injectors do you get petrol there?
My thoughts in no particular order
fuel pump
Ecu or conections
injectors (these can sieze if dry for too long)
timing (dedicated to lpg which would be more advanced than petrol)
Sanding your knuckles before starting work can help. That way you cant skin them
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geeves
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2013 Subaru XV

Re: gas conversion, wont run on petrol

Postby zacco » Thu Mar 17, 2016 9:21 am

Thanks geeves, found changeover relay circuitry was fried and immobiliser on key was cactus. Sorted
1989 2wd rodeo4ze1 soon to be 2.8 T/d auto,manual whatever
zacco
Isuzu Junior
 
Posts: 77
Joined: Tue Jul 16, 2013 6:52 am
Age: 61
Country: Australia
City: kuranda
Vehicle: 1991 Isuzu 2.8 t/d,
Mods , holden badges removed, tweaked fuel pump
1991 rodeo d/cab 4ZE1 auto , the horror , the horror !


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