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Old 05-11-2009, 07:29 PM   #14 (permalink)
Bearleener
Efficiency freak
 
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Join Date: Mar 2008
Location: Berlin, Germany
Posts: 58

Frugolf - '96 VW Golf wagon
90 day: 40.36 mpg (US)
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I second MetroMPG's and dcb's approach, interrupting the signal on the wire coming from the Hall sensor on the distributor. In my car it's a yellow-and-green wire. Been using it for about 2 years without any problems. (At first I was afraid I might be damaging the catalytic converter, but the car just passed the emissions inspection with flying colors.) Should work on any engine, it will cut both fuel and spark. I bumpstart whenever possible but I also installed a start button, tapping a relay into the wire going from the key's starter switch.

Other options: My car doesn't have an injector fuse. Cutting the fuel pump would give a delayed response and I suspect the ECU may try to compensate for waning fuel before it dies.
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