Ogalic: /* Cranking */

2026-02-12T22:31:37Z

Cranking

← Older revision		Revision as of 22:31, 12 February 2026
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	= Cranking =		= Cranking =
	The cranking menu handles fuel and ignition during cranking conditions. Cranking conditions are defined as RPM below the cranking threshold.		The cranking menu handles fuel and ignition during cranking conditions. Cranking conditions are defined as RPM below [[Config:Cranking#Cranking RPM limit\|the cranking threshold]].

	= Cranking settings =		= Cranking settings =

Ogalic: /* Cranking RPM limit */

2026-02-12T22:31:18Z

Cranking RPM limit

← Older revision		Revision as of 22:31, 12 February 2026
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	==== Cranking RPM limit ====		==== Cranking RPM limit ====
	This sets the RPM limit below which the ECU will use cranking fuel and ignition logic, typically this is around 350-450rpm.		This sets the RPM limit below which the ECU will use cranking fuel and ignition logic, typically this is around 350-450rpm.
	~~set cranking_rpm X~~

	=== Fuel ===		=== Fuel ===

Ogalic: /* Cranking */

2026-02-12T22:28:51Z

Cranking

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Ogalic: Created page with "= Cranking = == Cranking settings == '''Cranking RPM limit''' This sets the RPM limit below which the ECU will use cranking fuel and ignition logic, typically this is around 350-450rpm. set cranking_rpm X === Fuel === '''Injection mode''' This is the injection strategy during engine start. See Fuel/Injection settings for more detail. It is suggested to use "Simultaneous". '''Cranking fuel table''' For cranking either use the specified fixed base fuel mass, or us..."

2026-02-12T22:16:29Z

Created page with "= Cranking = == Cranking settings == '''Cranking RPM limit''' This sets the RPM limit below which the ECU will use cranking fuel and ignition logic, typically this is around 350-450rpm. set cranking_rpm X === Fuel === '''Injection mode''' This is the injection strategy during engine start. See Fuel/Injection settings for more detail. It is suggested to use "Simultaneous". '''Cranking fuel table''' For cranking either use the specified fixed base fuel mass, or us..."

New page

= Cranking =

== Cranking settings ==

'''Cranking RPM limit'''

This sets the RPM limit below which the ECU will use cranking fuel and ignition logic, typically this is around 350-450rpm.
set cranking_rpm X

=== Fuel ===

'''Injection mode'''

This is the injection strategy during engine start. See Fuel/Injection settings for more detail. It is suggested to use "Simultaneous".

'''Cranking fuel table'''

For cranking either use the specified fixed base fuel mass, or use the normal running math (VE table).

=== Ignition ===

'''Timing Advance mode'''

In Constant mode, timing is automatically tapered to running as RPM increases.
In Table mode, the "Cranking ignition advance" table is used directly.

'''Fixed cranking advance'''

Ignition advance angle used during engine cranking, 5-10 degrees will work as a base setting for most engines.
There is tapering towards running timing advance
set cranking_timing_angle X

'''Fixed Cranking Dwell'''

Dwell duration while cranking

=== Advanced ===

'''Flood clear'''

When enabled if TPS is held above 95% no fuel is injected while cranking to clear excess fuel from the cylinders.

'''Faster engine spin-up'''

If enabled, try to fire the engine before a full engine cycle has been completed using RPM estimated from the last 90 degrees of engine rotation. As soon as the trigger syncs plus 90 degrees rotation, fuel and ignition events will occur. If disabled, worst case may require up to 4 full crank rotations before any events are scheduled.

'''Use Advance Corrections for cranking'''

This enables the various ignition corrections during cranking (IAT, CLT and PID idle).
You probably don't need this.

'''Separate Flex Fuel cranking table'''

Enable a second cranking table to use for E100 flex fuel, interpolating between the two based on flex fuel sensor.

== Cranking Air Amount vs CLT ==

'''ETB idle maximum angle'''

This sets the range of the idle control on the ETB. At 100% idle position, the value specified here sets the base ETB position.

== After-start enrichment ==

~~PLACEHOLDER~~

== Priming pulse ==

'''Disable fuel pump prime on power on'''

~~PLACEHOLDER~~

'''Disable injector prime pulse'''

Do not prime injectors

'''Fuel pump prime delay after power'''

How long to delay fuel pump prime from ign on

'''Injector Priming delay (after fuel pump delay)'''

Delay to allow fuel pressure to build before firing the priming pulse.

== Cranking Base Fuel (Engine Cycle vs CLT) ==

~~PLACEHOLDER~~

== CLT Cranking Fuel Multiplier (E0) ==

~~PLACEHOLDER~~

== CLT Flex Cranking Fuel Multiplier (E85) ==

~~PLACEHOLDER~~

== CLT Cranking ignition advance ==

~~PLACEHOLDER~~

Config:Cranking - Revision history

Ogalic: /* Cranking */

Ogalic: /* Cranking RPM limit */

Ogalic: /* Cranking */