james125 Posted July 15, 2019 Share Posted July 15, 2019 Has anyone here used the Torque app to log data from the OBD port? I have been logging some data from my Ford Fusion 1.6 TDCI, during a full accelration pull I have; 92.6 g/s MAF 552.8 cc/min Fuel flow Assuming that the stoichmetric AFR is 14.46 and the fuel has a density of 0.8345 g/cc I have calculated the Lamda as follows; 552.8*60 / 92.6 * 14.46 * 0.8345 = 0.83 This gives a lamda of 0.83. In other words the ECU is putting more fuel in then it has oxygen to burn. I'm assuming a value like this would lead to plumes of black smoke, yet there isn't any with my car. I think there is an error with the OBD reading. Has anybody looked at torque logs before? Any ideas why the fueling is so far off? Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Ford UK Shop
Sponsored Ad
Name: eBay
Ford Model: FordUK Shop
Ford Year: 2024
Latest Deals
Ford UK Shop for genuine Ford parts & accessoriesDisclaimer: As the club is an eBay Partner, The club may be compensated if you make a purchase via the club
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.