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INSIDIOUS '86 · 08-04-2013, 06:09 PM

If you don't have the o2 sensor you get a rich open loop mode on the tbi. That will kill mileage right there and can be causing the bog. Fix it and recalculate
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08-04-2013, 06:09 PM	#68
INSIDIOUS '86 Registered User Join Date: Jul 2009 Location: washington Posts: 4,178	Re: 20 mpg hijack thread If you don't have the o2 sensor you get a rich open loop mode on the tbi. That will kill mileage right there and can be causing the bog. Fix it and recalculate Posted via Mobile Device __________________ 377 sbc thumpr cam autogear m23 muncie 3:73 Detroit trutrac 3''spintech prostreet mufflers xpipe 1 3/4 headers build thread !http://67-72chevytrucks.com/vboard/s...d.php?t=577217 Iroc gauge threadhttp://67-72chevytrucks.com/vboard/s...d.php?t=554511