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Mine is setup to lambda and the EQ Ratio Error parameter works. AFR error does not. If one doesn't work, try the other.... Double click on EQ ratio error or AFR error. Back to the layout editor, click "click to insert or change" beside parameter for the column axis.
As a quick reference, here are lambda values and their AFR equivalents for different fuels. This is handy to use when looking at a wideband display/gauge that displays a gas scale AFR or just for curiosity’s sake.
This is technically wrong, but it will get you the right result. If you want to be truly accurate then the proper approach would be to change the stoich setting to suit whatever blend you're running - 9.8:1 for E85 for example. If you do this then the target is different.
E85 Ethanol Diesel Methanol Natural Gas Propane 14.7 : 1 9.8 : 1 9.0 : 1 14.5 : 1 6.4 : 1 17.2 : 1 15.7 : 1-----Stoichiometric AFR of Common Fuels AFR - Lambda Lambda - AFR 0 50 100 150 200 250 300 0 1000 2000 3000 4000 5000 6000 7000 8000 DEAD 0.95 - 0.90 DEAD
So, no matter if you've got E85 or pump gas in the cylinder burning; if the ratio was such that all of the air and fuel were used up in the combustion process, your WBO2 will read stoich, or a value of 1.00 lambda.
View and Download BMW E85 manual online. Information/Communication Seminar Working Material. E85 automobile pdf manual download.
19 lis 2004 · OBD-3 BMW Fault Codes (DTCs) Below is a comprehensive listing of BMW DTCs and the corresponding SAE P-codes. Table a. Diagnostic trouble codes (DTCs) BMW code P-code Fault type and function Signal type and range Explanation 1 Ignition coil cyl.2 Input analog timing (100 mV) DME initiates secondary ignition for each cylinder then looks for feedback
