Lc-1 reading 20+ F/R ratio when in gear but no gas applied - Miata Turbo Forum - Boost cars, acquire cats.

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Old 04-10-2012, 07:59 PM   #1
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Default Lc-1 reading 20+ F/R ratio when in gear but no gas applied

My LC-1 is reading 20+ F/R ratio when i am in gear but no gas is applied (no throttle). Other than that, it reads perfectly. I have it hooked up to my MSPNP. Anyone has the same problem?
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Old 04-10-2012, 08:17 PM   #2
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It's the Over Run fuel cut settings under the Extended menu. Basically the ecu cuts fuel to your injectors below a certain KPA, the stock ECU does the same thing. You can turn it off; waste gas and not really notice any difference if it makes you feel better.

I'm pretty sure I bumped mine up a good bit (more aggressive) from the base map settings. Current settings are below 25kpa, less than 5% throttle position, and greater than 1500rpms and it drives like stock.
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Old 04-10-2012, 08:24 PM   #3
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It's supposed to do that.
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Old 04-11-2012, 04:58 AM   #4
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Great. thanks for the answers!
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Old 04-11-2012, 06:04 AM   #5
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It's a fuel saving/emissions feature.

Turn it off for some nice burbly afterfires as you decelerate. I like to do that from time to time.
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