ninjette.org - View Single Post - 2005 EX-250 FI project bike cold startup test.

greg737 · December 17th, 2011, 07:17 AM

Jiggles is correct. My system is a do-it-yourself configuration and I'm using a Microsquirt ECU.

Just like the Ecotrons ECU the Microsquirt is also capable of closed-loop tuning (i.e. rewriting/improving its own basic fueling table based on O2 sensor feedback). But to set it up for cold starts you have to manually configure and test the various small enrichment tables that augment the basic fueling table.

The Microsquirt uses four of these small "enrichment" tables to tailor startup fueling based on temperature: Priming Pulse table, Cranking Pulse table, Afterstart Enrichment table, and Warmup Enrichment table.

Acutally, it's been fun doing the fine tuning of these tables to give the bike "one press" startup in any temperature.

December 17th, 2011, 07:17 AM	#7
greg737 - Name: - Location: - Join Date: May 2009 Motorcycle(s): - Posts: A lot.	Jiggles is correct. My system is a do-it-yourself configuration and I'm using a Microsquirt ECU. Just like the Ecotrons ECU the Microsquirt is also capable of closed-loop tuning (i.e. rewriting/improving its own basic fueling table based on O2 sensor feedback). But to set it up for cold starts you have to manually configure and test the various small enrichment tables that augment the basic fueling table. The Microsquirt uses four of these small "enrichment" tables to tailor startup fueling based on temperature: Priming Pulse table, Cranking Pulse table, Afterstart Enrichment table, and Warmup Enrichment table. Acutally, it's been fun doing the fine tuning of these tables to give the bike "one press" startup in any temperature.