Flex Fuel Option 4

[Ryno]

Should param 13 change based on ethanaol content when the flex fuel option 4 is selected? I swear my chip was working like that but now param 13 is 128 and power logger says i have 75% eth.

 

[EricM]

Yes, param 13 should change with ethanol content if you have the flexfuel option turned on. Make sure the ETH_C table starts at 0 and goes to 176 at 100% eth. Maybe it got corrupted.

 

[Ryno]

the ETH_C table starts at 128 and goes to 176. param 13 stays 128. If I put my own value in to match the eth content it will default back to 128 after a key cycle. I tried putting a value different than 128 in at the 0 and it wont change to the value either. I def have option 4 input too. I only noticed because i started the car and it was very lean and then the correction ramped up to 25 once in CL

 

[EricM]

Under the help tab, while connected, press the about button and see what the software versions are for PLC and powerlogger interface.
I might have you reflash it anyway, just to reset it.

 

[Ryno]

PLC 2.7.1
interface version 0.1

 

[EricM]

Interface should be showing 5.2. I would reflash and see what happens. You might lose your tune, so take note of your setup.

 

[EricM]

Also let me know what chip# you have.

 

[Ryno]

chip 18272
reflashed shows interface 5.2 but no change. if i enter 0 in options and then my own value in param 13 it will keep it through a key cycle. i also noticed after a cycle the intervace showing 0.1 again but i went offline and back on and it was back to 5.2

 

[EricM]

The only other thing I can think of is a bad connection between the powerlogger and ECM, or a bad powerlogger.