MS2 V3.0 MegaTune
With flex fuel sensor do I set AFR tables for gas or E85?
Flex Fuel AFR
Forum rules
Read the manual to see if your question is answered there before posting. Many users will not reply if the answer is already available in the manual.
If your question is about troubleshooting, configuration, or tuning, you MUST include your processor type (MS-I or MS-II) and code version in your post. If your question is about PCB assembly or modifications, you must also include the main board version number (1.01, 2.2 or 3.0). For tuning/troubleshooting questions, please attached a datalog and your MSQ file to your post.
If you have questions about MS1/Extra or MS2/Extra code configuration or tuning, please post them at www.msextra.com Such questions posted here will be moved to: a temporary MSextra sub-forum, where they will be removed after 7 days
The full forum rules are here: Forum Rules, be sure to read them all regularly.
Read the manual to see if your question is answered there before posting. Many users will not reply if the answer is already available in the manual.
If your question is about troubleshooting, configuration, or tuning, you MUST include your processor type (MS-I or MS-II) and code version in your post. If your question is about PCB assembly or modifications, you must also include the main board version number (1.01, 2.2 or 3.0). For tuning/troubleshooting questions, please attached a datalog and your MSQ file to your post.
If you have questions about MS1/Extra or MS2/Extra code configuration or tuning, please post them at www.msextra.com Such questions posted here will be moved to: a temporary MSextra sub-forum, where they will be removed after 7 days
The full forum rules are here: Forum Rules, be sure to read them all regularly.
Re: Flex Fuel AFR
It is set up so you go from gas to alcohol, but if you planned to mostly run E85 I believe you could set the values for 0 and max fuel and spark correction in reverse order and then tune the AFRs on pure E85. But that is a good point, you should pick one or the other (pure gas or Emax where max is the max amount of alcohol you expect to run).
Re: Flex Fuel AFR
In MegaTune/Injection Control/Required Fuel/Air-Fuel Ratio
Do I
enter 14.7 or 9.9?
Do I
enter 14.7 or 9.9?
Re: Flex Fuel AFR
I would enter 14.7 if you are planning to run mostly gasoline and 9.9 if mostly E85, but your sensor calibration has to be set up the same way. But if you want to run closed loop after you get a good tune, we may need to allow you to input both AFRs and interpolate between them according to the sensor %alcohol.