yea more or less just assurance of what the actual FEC is. I previously had the FEC set at .680 and tested my fuel to make sure I wasnt getting a bad batch. It tests out at 85% ethanol during the summer months pretty consistently here in MN and the sensor is reading .688 currently.
Me too . Im not exactly sure when it happened but it makes sense now why it was not working properly. Flex mode is now working and Ive made a new tune.
So apparently at some point while I was tuning the car I didn't hit apply after changing the FEC or turning off flex fuel mode, some how I tuned around that fact and had the car running well. After talking with cal I decided to start over with my base tune with flex fuel mode turned on and make...
That's correct FEC set at .680 runs fine. I check flex fuel mode and hit apply and then start the car and need to keep feathering the throttle to keep it running. If I let off the wideband starts to read lean and the car dies. Then if I go back and un check flex fuel mode and hit apply it...
It has been running on E85 the past year or so and i've been refining the tune FEC set at .680. I decided to finally wire in a flex fuel sensor and try and get that on board. Signal is going to A6, ground is going to batt. ground and and 12v ign is spliced into b17 on the ECU.
Sounds good I figured I would throw it out there and see if any one else has had a similar issue.
Ill just keep it disabled for now and try and sort it out.
Thanks!
Wondering if anyone else has ran into this. I recently installed my flex fuel sensor, when I enable flex fuel mode with the key on engine off it displays the new FEC .690. Seems to me the sensor is working and ecu is seeing a proper reading. I try to start the car up and I have to constantly...