Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - lean burn: now i have a 1k pot on my MAF sensor

modmonster · 01-20-2009, 06:13 AM

through trial and error i have found that about a 0.1-0.2 volt subtraction from the MAF sensor signal leans out the engine nicly.

i noticed that when my MAF sensor broke (lost calibration by 0.5v) i was actually getting slightly better milage on short trips than when i replaced it. altough milage (and power!) was slightly worse on highway journeys -i assume that was because it was too lean.

i've just put a 1k pot on my MAF sensor and i should see higher mpg numbers soon. noticed engine warm up takes much longer because the mixture is not rich.

01-20-2009, 06:13 AM	#1 (permalink)
modmonster Master EcoModder Join Date: Jul 2008 Location: united kingdom Posts: 262 Tracy - '00 vauxhall corsa Thanks: 0 Thanked 11 Times in 4 Posts	lean burn: now i have a 1k pot on my MAF sensor through trial and error i have found that about a 0.1-0.2 volt subtraction from the MAF sensor signal leans out the engine nicly. i noticed that when my MAF sensor broke (lost calibration by 0.5v) i was actually getting slightly better milage on short trips than when i replaced it. altough milage (and power!) was slightly worse on highway journeys -i assume that was because it was too lean. i've just put a 1k pot on my MAF sensor and i should see higher mpg numbers soon. noticed engine warm up takes much longer because the mixture is not rich. __________________ Nissan Leaf 24kwh. Average FE = 300mpg 3.6miles/kwh (@plug) Last edited by modmonster; 01-20-2009 at 06:29 AM..