Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - Lean Burn - is it activated by o2 voltage or vacuum? (Civic VX)

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Joe1234

07-22-2012 04:12 PM

Lean Burn - is it activated by o2 voltage or vacuum? (Civic VX)

1. What input does the ECU use to activate lean burn? Is it the o2 sensor voltage output or the vacuum amount?

2. can you artificially turn it on?

3. which wire comming from the ECU in this diagram is the one I should monotor voltage on for lean burn? .:FFS TechNet : OBD1 ECU Pin out Schematics :.

turbothrush

07-22-2012 05:08 PM

3). Pump cell positive. IP+. D14

94EGCoopey

07-24-2012 03:29 AM

Quote:

Originally Posted by turbothrush (Post 318108)

3). Pump cell positive. IP+. D14

this is correct. I am not sure on what activates it.

drmiller100

07-24-2012 09:50 AM

there are a list of conditions which the ECu reads in order to activate it.

it is not just one.

there was a good post about 3 months ago.

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