Hello there! I figured I'd make a separate thread than post in the long thread because this way you can actually find a thread just for what you're researching...
In the General Leif we're running 850T injectors with a 960 MAF, 933 ECU and injector constants of Injector Constant 1 at 104 and Injector Constant 4 at 3400. The fuel map is decent at full throttle and the top load cells, but the lower load and midrange stuff has not been dialed in on the dyno(or street). I haven't driven the car with the current tune in it yet, but even before it was going lean on tip in at lower rpm and will do a lean backfire if you don't ease into it. This is especially noticeable when cold and I haven't warmed it up fully to double check that it's an issue when warm. I might be able to alleviate it with a little more warm-up enrichment, as I have that leaned out a bit.
That being said, I know there are some accel. enrichment tables but am curious what would have the greatest affect on the initial lean mixture you get when you stomp the gas.
There's a value that's been adjusted on some of my tuned bins from other people that I want to say is an injector latency thing, but I don't think I see that table in TunerPro unless it's the pulsewidth modifier under the Start and Warmup folder. Maybe it is that... It looks like that when you raise the values there, it lessens the amount of fuel injected when trying to start the car, such that if you are needing to give it throttle because it's too rich, you could raise these numbers to lean it out and maybe not need to give it throttle?
Thanks in advance!
And yes, I know this is best fixed by having something other than LH2.4 that only has an on/off switch for the throttle position sensor...
In the General Leif we're running 850T injectors with a 960 MAF, 933 ECU and injector constants of Injector Constant 1 at 104 and Injector Constant 4 at 3400. The fuel map is decent at full throttle and the top load cells, but the lower load and midrange stuff has not been dialed in on the dyno(or street). I haven't driven the car with the current tune in it yet, but even before it was going lean on tip in at lower rpm and will do a lean backfire if you don't ease into it. This is especially noticeable when cold and I haven't warmed it up fully to double check that it's an issue when warm. I might be able to alleviate it with a little more warm-up enrichment, as I have that leaned out a bit.
That being said, I know there are some accel. enrichment tables but am curious what would have the greatest affect on the initial lean mixture you get when you stomp the gas.
There's a value that's been adjusted on some of my tuned bins from other people that I want to say is an injector latency thing, but I don't think I see that table in TunerPro unless it's the pulsewidth modifier under the Start and Warmup folder. Maybe it is that... It looks like that when you raise the values there, it lessens the amount of fuel injected when trying to start the car, such that if you are needing to give it throttle because it's too rich, you could raise these numbers to lean it out and maybe not need to give it throttle?
Thanks in advance!
And yes, I know this is best fixed by having something other than LH2.4 that only has an on/off switch for the throttle position sensor...