1990 On3 Turbo Build/Review

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a91what

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Mod Dude
Apr 6, 2011
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Is it cold in your area?? The car never gets above 170*, that is very cool for an EFI engine. These things want to run at 200* or so
 

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BryanNux

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May 15, 2015
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Yea I’m in Colorado Springs. Been in the low 20’s this week, snow. Feel like at night is single digits. When I was stationed in ga it would be about 190-200
 

a91what

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Mod Dude
Apr 6, 2011
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204
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Hillsborough county
Using the datalog I built a histogram for the fuel table, using the afr error % (a custom field I wrote) I went through and multiplied each cell with there respective error amount. Keep in mind I normally filter out any data from an engine that's 180* or lower in temp. Yours never got above 170* I believe your thermostat is either stuck open or missing.