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Old 08-03-2010, 01:26 AM   #52 (permalink)
Olympiadis
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Join Date: May 2010
Location: Illinois
Posts: 184

White2003Focus - '03 Ford Focus SE 4-door sedan
Team Ford
90 day: 38.53 mpg (US)

White2001S10pickup - '01 Chevy S10 extended cab LR
Last 3: 24.51 mpg (US)

1989DodgeOMNI - '89 Dodge Omni
Last 3: 30.38 mpg (US)

1991ChevyC1500pickup - '91 Chevy C1500
Last 3: 24.03 mpg (US)

White1986Irocz - '86 Chevy Irocz LB9
Last 3: 30.14 mpg (US)

1999 C5 Corvette - '99 Chevy Corvette

2008 Infinity G37 - '08 Infinity G37
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I see. I usually do those adjustments in the code, but your way could be useful as well. It would make for quick testing.
Does your switch isolate the TPS from the resistor? or does it put them in series when activated?

Also, could you post some pictures of your propane system in your album or in a separate post? I would like to see how you did yours. I'm assuming your ECM uses a MAP sensor ?
My Focus has a MAF, so I'm going to have to do some creative routing to try the propane. I'll have to avoid the hot wire of the MAF.

I have used Propane on older carbureted vehicles for cold starting in winter, and never experienced a backfire. Has your system ever popped on DECEL or any other time? I have some concern because the Focus has a plastic/composite intake manifold.
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