Config:Fuel - Revision history

Agnese: Added DFCO exit enrichment example table

2026-08-07T14:21:41Z

Added DFCO exit enrichment example table

← Older revision		Revision as of 14:21, 7 August 2026
Line 427:		Line 427:
	= DFCO MAP to RPM threshold =		= DFCO MAP to RPM threshold =
	DFCO will activate when operating below this curve. Used to allow a higher threshold at low RPM where less vaccuum is generated.		DFCO will activate when operating below this curve. Used to allow a higher threshold at low RPM where less vaccuum is generated.

			= DFCO Exit Enrichment (%) =
			Example table:
			[[File:DFCOExitEnrichment Example Table.png\|none\|thumb\|Use this just as an example. These values may or may not work well on your engine]]

	= Long Term Fuel Trim =		= Long Term Fuel Trim =
	This configures the Long Term Fuel Trim. This is used to trim fuel over long periods of time, such as injector aging or similar factors.		This configures the Long Term Fuel Trim. This is used to trim fuel over long periods of time, such as injector aging or similar factors.

Agnese: Added DFCO exit enrichment explanation

2026-08-07T13:54:43Z

Added DFCO exit enrichment explanation

@@ Line 362: / Line 362: @@
 ==== Inhibit closed loop fuel after cut ====
 Pause closed loop fueling after deceleration fuel cut occurs. Set this to a little longer than however long is required for normal fueling behavior to resume after fuel cut.
 ==== Ignition retard during cut ====
@@ Line 374: / Line 368: @@
 ==== After cut timing ramp-in time ====
 Smooths the transition back from fuel cut. After fuel is restored, ramp timing back in over the period specified.
 = DFCO MAP to RPM threshold =

Ogalic: /* Inhibit closed loop fuel after cut */

2026-02-02T08:18:43Z

Inhibit closed loop fuel after cut

← Older revision		Revision as of 08:18, 2 February 2026
Line 363:		Line 363:
	Pause closed loop fueling after deceleration fuel cut occurs. Set this to a little longer than however long is required for normal fueling behavior to resume after fuel cut.		Pause closed loop fueling after deceleration fuel cut occurs. Set this to a little longer than however long is required for normal fueling behavior to resume after fuel cut.

	~~'''~~Use DFCO exit enrichment~~'''~~		==== Use DFCO exit enrichment ====
			When exiting DCFO and all the fuel film from the intake runners has evaporated, there is a lean condition on the first few combustion events when resuming normal injection. This attempts to fix that by injecting extra fuel on DCFO exit.

	~~PLACEHOLDER~~		==== DFCO exit enrichment max RPM ====
			This is the maximum RPM for DCFO exit enrichment.
	~~'''~~DFCO exit enrichment max RPM~~'''~~

	~~PLACEHOLDER~~

	==== Ignition retard during cut ====		==== Ignition retard during cut ====

Ogalic: /* Predictive Map Blend Duration */

2026-02-01T19:53:17Z

Predictive Map Blend Duration

← Older revision		Revision as of 19:53, 1 February 2026
Line 735:		Line 735:
	== Predictive Map Blend Duration ==		== Predictive Map Blend Duration ==

	~~PLACEHOLDER~~		This is the duration for the [[Config:Fuel#MAP estimate table\|MAP estimation]].

	== TPS AE: RPM correction ==		== TPS AE: RPM correction ==

Ogalic: /* TPS AE instant pulse multiplier vs RPM */

2026-02-01T19:52:05Z

TPS AE instant pulse multiplier vs RPM

← Older revision		Revision as of 19:52, 1 February 2026
Line 285:		Line 285:
	== Staged Injector % table ==		== Staged Injector % table ==

	~~PLACEHOLDER~~		Dtaged injector % table is how much of the staged injector to be used at RPM vs load. 0% means here all primary, and 100% all secondary fuel injectors.

	== Staged Injector Small Pulsewidth Table ==		== Staged Injector Small Pulsewidth Table ==
Line 506:		Line 506:

	== Short term fuel trim Add Authority (+) ==		== Short term fuel trim Add Authority (+) ==
			Define how much fuel the short-term trim system is allowed to add at a given RPM vs. load (MAP/AFR) point.

	~~PLACEHOLDER~~		For example, if you want the system to only add fuel in boost and never remove it, you can set the '''Remove Map''' to 0 above 100 kPa and above, say, 2000 RPM.

	== Short term fuel trim Remove Authority (-) ==		== Short term fuel trim Remove Authority (-) ==

	~~PLACEHOLDER~~		Define how much fuel the short-term trim system is allowed to add at a given RPM vs. load (MAP/AFR) point.

			If you want the fuel trim to reset immediately on lift-off (when vacuum drops very low and the engine rides the bottom row of the map), you can set the authority to 0 in that area.

	= VE Table Switch =		= VE Table Switch =
Line 747:		Line 750:

	== TPS AE instant pulse multiplier vs RPM ==		== TPS AE instant pulse multiplier vs RPM ==
	This is the RPM multiplier for		This is the RPM multiplier for the [[Config:Fuel#Instant Fuel Pulse\|instant fuel pulse.]]

	== TPS AE instant pulse multiplier vs TPS ==		== TPS AE instant pulse multiplier vs TPS ==
			This is the TPS multiplier for the [[Config:Fuel#Instant Fuel Pulse\|instant fuel pulse.]]
	~~PLACEHOLDER~~

	== TPS AE instant pulse multiplier vs MAP ==		== TPS AE instant pulse multiplier vs MAP ==
			This is the MAP multiplier for the [[Config:Fuel#Instant Fuel Pulse\|instant fuel pulse.]]
	~~PLACEHOLDER~~

	== TPS AE instant pulse multiplier vs CLT ==		== TPS AE instant pulse multiplier vs CLT ==
			This is the CLT multiplier for the [[Config:Fuel#Instant Fuel Pulse\|instant fuel pulse.]]
	~~PLACEHOLDER~~

	== Evap from wall time ==		== Evap from wall time ==
			This is the base evaporation time of the fuel based on coolant temperature (Tau)

	== Stick to wall fraction ==		== Stick to wall fraction ==
			This is the base impact fraction basaed on coolant temperature (Beta)

	== Evap from wall table ==		== Evap from wall table ==
			This is the Tau table in regards to MAP.
	~~PLACEHOLDER~~

	== Stick to wall table ==		== Stick to wall table ==
			This is the Beta table in regards to MAP.
	~~PLACEHOLDER~~

	= Throttle Model Flow =		= Throttle Model Flow =
			Uses "flow through an orifice" set of [[wikipedia:Bernoulli's_principle\|Bernouli's equations]] to attempt to calculate air mass.
			{{Warning Mild\|This is experimental/for educational purposes only.}}

	== Throttle effective % area (TPS -> % ~~tb1~~ area) ==		== Throttle effective % area (TPS ->% throttle boy area) ==

	~~PLACEHOLDER~~		This is the transfer function between TPS percentage and the throttle body area percentage.

	== Throttle Model Flow Discharge Coefficient ==		== Throttle Model Flow Discharge Coefficient ==

	~~PLACEHOLDER~~		This is the discharge coefficient.

Ogalic: /* Fuel Corrections */

2026-02-01T19:43:54Z

Fuel Corrections

Show changes

Ogalic: /* Injector Advance Assisted Tuning */

2026-02-01T19:10:33Z

Injector Advance Assisted Tuning

Show changes

Ogalic: /* Use simultaneous */

2026-02-01T16:40:27Z

Use simultaneous

← Older revision		Revision as of 16:40, 1 February 2026
Line 208:		Line 208:

	==== Use simultaneous ====		==== Use simultaneous ====
	Enable simultaneous [[Config:~~Setup~~#~~Fuel strategy~~\|fuel mode]] into the scheduled switching.		Enable simultaneous [[Config:Fuel#Mode\|fuel mode]] into the scheduled switching.

	==== Cycles ====		==== Cycles ====

Ogalic: /* Use sequential */

2026-02-01T16:40:02Z

Use sequential

← Older revision		Revision as of 16:40, 1 February 2026
Line 202:		Line 202:

	==== Use sequential ====		==== Use sequential ====
	Enable sequential [[Config:~~Setup~~#~~Fuel strategy~~\|fuel mode]] into the scheduled switching.		Enable sequential [[Config:Fuel#Mode\|fuel mode]] into the scheduled switching.

	==== Use batch ====		==== Use batch ====
	Enable batch [[Config:~~Setup~~#~~Fuel strategy~~\|fuel mode]] into the scheduled switching.		Enable batch [[Config:Fuel#Mode\|fuel mode]] into the scheduled switching.

	==== Use simultaneous ====		==== Use simultaneous ====

Ogalic: /* Injector deadtime assisted tuning */

2026-02-01T16:37:58Z

Injector deadtime assisted tuning

← Older revision		Revision as of 16:37, 1 February 2026
Line 194:		Line 194:
	At first, the engine may struggle to stay running when the mode switch occurs. This is expected if your deadtime values are off, since those inaccuracies are usually already “hidden” in the VE table.		At first, the engine may struggle to stay running when the mode switch occurs. This is expected if your deadtime values are off, since those inaccuracies are usually already “hidden” in the VE table.

	If the engine goes too lean and won’t stay running, you can use the ~~'''~~[[Config:Fuel#Global Fuel Correction (1=100%)\|Global Fuel Correction]]~~'''~~ to richen the mixture enough to keep it alive.		If the engine goes too lean and won’t stay running, you can use the [[Config:Fuel#Global Fuel Correction (1=100%)\|Global Fuel Correction]] to richen the mixture enough to keep it alive.

	The Global Fuel Correction does not affect injector deadtime. It simply scales the overall fuel delivery, allowing you to keep the engine running while you dial in the correct deadtime values.		The Global Fuel Correction does not affect injector deadtime. It simply scales the overall fuel delivery, allowing you to keep the engine running while you dial in the correct deadtime values.