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Ignition/Tuner/ECM/Fuel InjectionNeed advice on ignition issues? Questions about a tuner? Have questions about a EFI calibration or Fuel Injection? Tips on Engine Diagnostics, how to get codes, and what they mean. Find your answers here.
Also he pulled up the map in Mastertune, where it shows all the cells with the A/F ratio. The vast majority were set at 14.6. He told me that that was maximum fuel. I said I thought it was opposite, that that was very lean. I wasn't going to argue with him - I'm a pastor, he's the mechanic. Is he right or am I?
Steve
Yes 14.6 is lean, but that is an EPA number....but probably as fat as he can tune it..
have you thought about putting the Xied's back on... they will fatten up the mixture...
I have a Tmax and am running 13.85....
sorry for my ignorance... not sure what the TTS System is...
I guess I should have done a little research before i hit the keys!
are you able to change your own setting or do you have to go back to the dealer/tuner?
I looked at there website and did not see a lot of useful information...
Bottom line is you need to fatten up that fuel mixture!
Last edited by Cheesecake; Nov 6, 2008 at 01:58 PM.
Reason: research
One of the main advantages to having fuel injection is being able to run your bike in the best fuel economy under low load situations and richer in the high load situations, this way I have economy and power with the same fuel system, this could never be done with the carbs we used to run. However if you decide to run 13. something in the no load area your waisting fuel. 14.6:1 is not lean in a low load area...it's perfect combustion or Stoichiometric. Now anything beyond Stoich would be considered lean and I would never run Stoich under a load even though it rill run there however it will run quite warm to say the least. Point being a good tune will run 14.2 to 14.5 in the cruise area and 12.5 to 12.8 under high loads and maybe 13.5 or so in mid range. So my bottom line is this you don't need to fatten it up in the closed loop area but if you want to run a little cooler it's very easy to run 14.4 to 14.2 in closed loop by adjusting the Bias Voltage Table in the TTS or SERT.....and that is plenty rich enough for any motor on the street under the low load cruise area.
I'm sure you know a heck of a lot more than i do on the subject!
reading Steve's post he stated that
"the vast majority were set to 14.6:1... and was told that it was the maximum ratio allowed"
he also had added a SE A/C and SE slip-ons (a few other small things) did the tune and pulled off his Xied's......all of this and lost numbers on his dyno....
my thought process is that he removed the Xied's... and then tuned it... he in essence leaned out his mixture....
my original thought was to put back on the Xied's and see what type of results he would get... fattening up the mixture...
I'm sure you know a heck of a lot more than i do on the subject!
reading Steve's post he stated that
"the vast majority were set to 14.6:1... and was told that it was the maximum ratio allowed"
he also had added a SE A/C and SE slip-ons (a few other small things) did the tune and pulled off his Xied's......all of this and lost numbers on his dyno....
my thought process is that he removed the Xied's... and then tuned it... he in essence leaned out his mixture....
my original thought was to put back on the Xied's and see what type of results he would get... fattening up the mixture...
CC
I understand what your saying but Steve's hp numbers are accounted for at 5500 to 6000 rpm and this area is set at 12.5 to 12.8 not 14.6 so the IED's wouldn't be a factor at that rpm.
I've just done some pretty extensive reading on the TTS kit, as I'll be installing one on my bike tomorrow... and I feel obligated to correct one misunderstanding here, assuming you have an '07-up model that utilizes O2 sensors. The TTS does NOT recognize 14.6 as an AFR. It recognizes 14.6 as a code to enter closed-loop operation, therefore allowing your ECM to adjust the AFR from 14.0 to 15.0 depending on what the O2 sensors are reading. Any entry other than 14.6 would put the ECM into open-loop at that particular AFR.
Because of this, I wouldn't be suprised to see a lot of 14.6's at idle and part-throttle settings. Better to let your ECM take care of the adjustments itself under those circumstances. Where you shouldn't see a lot of 14.6's is in high load and WOT operation.
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