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Old 04-13-2013, 09:45 PM   #108 (permalink)
Master EcoModder
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Join Date: Jul 2008
Location: Langley, BC
Posts: 1,225

Colorado - '04 Chevrolet Colorado
90 day: 22.98 mpg (US)
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The Lean Burn system was an early spark advance control system (introduced in 1976 and continuing to the 1980s) that was troublesome due to the nature of the contemporary electronic components...
I'll say. My first car was a hand-me-down from my dad's cousin - a 2-dr '79 Volare with a 318 2-bbl and lean burn. He had to replace the $1K "computer" (word used loosely) on a yearly basis, and I took delivery of it with it pre-fried. All I did was steal a normal distributor & ignition module from a van at a wrecker and install it. The lean burn carb worked great without its proper computer. I drove it for years that way and it got 21 mpg (before I was even trying for mileage).
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