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78 Super Beetle fuel injection no start
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ITSTARTSWITH1
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Joined: October 12, 2019
Posts: 1
Location: OREGON
ITSTARTSWITH1 is offline 

PostPosted: Sat Oct 12, 2019 6:02 pm    Post subject: 78 Super Beetle fuel injection no start Reply with quote

I have a 78 super beetle that I'm not sure where to find technical and troubleshooting information for. What I'm experiencing is a no start due to fuel delivery (starts with starting fluid). I checked the double relay for 12 volts while cranking and I have 12 volts going to the pump and the pump works. Any help is greatly appreciated and thank you.
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busdaddy
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Joined: February 12, 2004
Posts: 51144
Location: Surrey B.C. Canada, but thinking of Ukraine
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PostPosted: Sun Oct 13, 2019 8:44 am    Post subject: Re: 78 Super Beetle fuel injection no start Reply with quote

Welcome!
You'll find troubleshooting guides and manuals for L-jet here: https://www.thesamba.com/vw/archives/manuals/fuelinjection.php , your problem could be caused by the single white ECU wire not being connected to the #1 (-) coil terminal, a problem with the resistor pack or stuck injectors if it has been sitting.
Also confirm the other half of the double relay is supplying power to the ECU: https://www.thesamba.com/vw/forum/viewtopic.php?t=334340

And of course I must offer the required advice for any new to you FI car, replace every single fuel line with SAE J-30R9 (or higher) rated hose immediately. Also do a smoke test to find any tiny vacuum leaks, L-jet can't handle even the smallest one.
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