Hondata

Hondata wrote: Sat May 23, 2020 8:28 am Probably the VSA closing the throttle. A datalog would help.

Ill get a datalog soon.

I went to drive again today.

The 6500 RPM bog is there, it also back fires and burbles. Usually 1st and 2nd gear from standstill launch. when I am already rolling (freeway) it goes to redline easy otherwise i feel a cut in fuel or power for 1 sec.

I turned traction control off with the button the left side, and whether that is on or not it didn't matter. It still behaved the same way.

Is it one of the settings I chose?

Our crystal ball is broken. A datalog would help.

Hondata wrote: Tue May 26, 2020 6:04 pm Our crystal ball is broken. A datalog would help.

Here you go.

Went for drive, fuel cuts off and back fires around 6500 rpm or so...

Several things.
- The long term fuel trim indicates that the AFM is not reading correctly at all flows.
- The fuel pressure is dropping over 5000 rpm.
- Traction control is retarding the ignition a lot in the lower gears.
- You do run to 7000 rpm in the lower gears.

I don't think the AFM is cause of any misfire, it is either the fuel pressure dropping too low or the amount of ignition retard from traction control.

To confirm switch off the VSA and swtich off the traction control by setting the cruise control main on.

Either way the solution is to reduce the torque in 1st and 2nd gears. If you switch to a mod that doesn't have full power in 1st and 2nd gears I think it will fix it.

Hondata wrote: Wed May 27, 2020 6:40 am Several things.
- The long term fuel trim indicates that the AFM is not reading correctly at all flows.
- The fuel pressure is dropping over 5000 rpm.
- Traction control is retarding the ignition a lot in the lower gears.
- You do run to 7000 rpm in the lower gears.

I don't think the AFM is cause of any misfire, it is either the fuel pressure dropping too low or the amount of ignition retard from traction control.

To confirm switch off the VSA and swtich off the traction control by setting the cruise control main on.

Either way the solution is to reduce the torque in 1st and 2nd gears. If you switch to a mod that doesn't have full power in 1st and 2nd gears I think it will fix it.

So switch VSA off, when you say that do you mean clicking the traction control button on the left? and turning on cruise control to disable the traction control from the calibration?

The second point you made is to just adjust the calibration to remove full power in 1st and 2nd correct? My friend runs that himself and has no issue.

Fuel pressure dropping is that a concern? Also AFM not reading correctly, im assuming that is due to my eventuri intake? Should i not select the eventuri intake option since my eventuri intake is the V2 version? The v2 version supposedly corrected air fuel issues for people running it without a tune.

I turned off full power 1st and 2nd and the problem is still there.

at 6500-7000 it backfires and hesitates for like 1 sec

And the datalog?

Here you go. Just went for drive again. Backfire and bogging around 6500-7000 or so.

very consistent with 1st and 2nd gear once you pass 6500 you can hear it backfire and pop once or twice, hestitate for 1 second, then go again until redline.

So i went driving some more...

If i ease in on the pedal it will go to redline, but if I get on it in 1st and 2nd it will hesitate and bog at aroudn 6500+ or so.

I tried removing VSA physically by the button and in the mods, i removed full power in 1st and 2nd, and i took eventuri mod out and it still does it.

Everything else about the tune feels fine and great. The car runs extremely well otherwise.

Is my case an isolated issue? Anybody i know with hondata does not have this issue.

On that datalog, at what time does you see the behavior?

4:15 secs roughly.

I noticed i didn't hit red line there. Reason being is i felt like i already hit it so i hesitated to keep the foot down.

The bogging causes me to think i hit red line but its way early.

Can you post the calibration? The fuel pressure is not normal and I would like to see what setting you have.

These are the only things checked off as of now.

Boost: remove factory boosts limits
Fuel: Pump gas (10% ethanol)
Fuel Pump: Stock fuel Pump
Intake: Eventuri
Throttle: Improved throttle response w/ full power in 1st and 2nd
Turbo: Increase Turbocharger boost limit
Turbo: increase turbocharger pressure ration limit

Could i be affected by the nation wide fuel pump recall? Is that what is contributing to the low fuel pressures? A bad fuel pump would cause a drop in pressure right?

Please grab the calibration off your FlashPro and post it here.

Is this what you are asking for?

I hope you realize I'm a complete noob to this and that this is all foreign to me.