Commanded Fuel when in open loop and PE modifier based on RPM

[WeathermanShawn]

O.K I am pretty sure I got it now.

Your main point is to be aware of what TPS% relates to a certain kPa and to be in PE mode during those heavier loads/higher rpm.

Got it.

I'll start mapping TPS% against kPa. For now, I have followed your advice and enabled throttle openings for PE to 20%.

I'm at altitude and 83-85kPa is max out here.

Thanks for the explanation. To the original poster, thank you for letting me add a question.

..WeathermanShawn..

[SSpdDmon]

O.K I am pretty sure I got it now.

Your main point is to be aware of what TPS% relates to a certain kPa and to be in PE mode during those heavier loads/higher rpm.

Got it.

I'll start mapping TPS% against kPa. For now, I have followed your advice and enabled throttle openings for PE to 20%.

I'm at altitude and 83-85kPa is max out here.

Thanks for the explanation. To the original poster, thank you for letting me add a question.

..WeathermanShawn..

Wow - only 85kPa? That must be fun.

[Thumper]

Thanks for the explanation. To the original poster, thank you for letting me add a question.

..WeathermanShawn..

Hey so long as I can learn a thing or two from it, add as many as you want.

[WeathermanShawn]

Yes, up here in the 'High Country' 60kPa equates to ~20% throttle, 100% throttle ~85kPa.

Thanks for the CFOL tip (stoich). As many times as I used that table, it was not until now I totally realized that values of AFR (richer) are not referenced unless you are in PE mode.

Makes me reconsider my VE computations. It is all based on the 'stock' CFOL settings which richen AFR as kPa's increase. But, if running closed-loop and not in PE, then it's 14.63.

On a side note SSpdDmon, successfully utilized your hotly debated IFR tuning method for us 'closed-loopers'. Worked like a charm. Trims went from +10% to 0 to -5. And this was after I calibrated the MAF, so there was not much room to go there.

And it took all of about 10-15 minutes.

Thanks.

..WeathermanShawn..

[SSpdDmon]

Yes, up here in the 'High Country' 60kPa equates to ~20% throttle, 100% throttle ~85kPa.

Thanks for the CFOL tip (stoich). As many times as I used that table, it was not until now I totally realized that values of AFR (richer) are not referenced unless you are in PE mode.

Makes me reconsider my VE computations. It is all based on the 'stock' CFOL settings which richen AFR as kPa's increase. But, if running closed-loop and not in PE, then it's 14.63.

On a side note SSpdDmon, successfully utilized your hotly debated IFR tuning method for us 'closed-loopers'. Worked like a charm. Trims went from +10% to 0 to -5. And this was after I calibrated the MAF, so there was not much room to go there.

And it took all of about 10-15 minutes.

Thanks.

..WeathermanShawn..

Eh....skinnin' cats....you know how it goes.

[Dopey]

Sorry if its a stupid quesion, but what if you were to flip the coin and have PE constantly enabled and set all PE values to say 12.8 AFR? That way there is 0 transitions, even between different points on the map!

[WeathermanShawn]

Someone else may have to clarify if this is a practical solution.

If you were to successfully enable a PE of 12.8 (constantly?), that would be a pretty rich AFR for everyday driving.

Fuel economy, plugs, etc., might suffer.

I get your point, but perhaps PE is best served as a 'semi open-loop' tool.

Better to just set your PE TPS% to enable sooner when your engine is under load.

..WeathermanShawn..

[joecar]

For tuning: set CFOL and PE as SSpdDmon said.

For driving: set CFOL suitably for cruising and PE for power enrichment with suitable enable (i.e. when you mash the throttle).

[SSpdDmon]

For tuning: set CFOL and PE as SSpdDmon said.

For driving: set CFOL suitably for cruising and PE for power enrichment with suitable enable (i.e. when you mash the throttle).

...

[Kurtomac]

if youre not at 100% TP is PE still gonna get activated?...or is it just based on the RPM B-0120 is set at