How do you set the base time on MegaSquirt?
Navigate over to the Basic Setup tab and click on More Ignition Settings. This will open the More Ignition Options Menu. If Fixed Advance is set to Use Table, go ahead and set it to Fixed timing. This will tell the MegaSquirt to ignore our Ignition Table and hold a fixed advance.
What is fuel load MegaSquirt?
Your fuel load is whatever mode you set under Basic Setup > Engine and Sequential Settings > Control Algorithm. This is the method used to determine engine load. You can see that in the project I pulled up (randomly), the algorithm is set to MAFMAP. That means the MAP as calculated with a MAF sensor.
Does MegaSquirt replace stock ECU?
While there are many cars where MegaSquirt can completely replace the stock ECU, on some cars you’ll need to leave the stock ECU in place.
What is warm enrichment?
The Warm Up Enrichment (WUE) curve represents the additional fuel amount to be added whilst the engine is coming up to temperature (Based on the coolant sensor).
What is TPS enrichment?
Tuning of acceleration enrichment is based on the rate of change of the throttle position, a variable known as TPSdot (TPS delta over time). This is measured in %/second, with higher values representing faster presses of the throttle and values in the range 50%/s to 1000%/s are normal.
What is MegaSquirt tuning?
Megasquirt is an excellent entry-level EMS system, offering the ability to tune most any engine for an amazing price. Despite being simple, the software can be powerful in the right hands.
What tuning software does MegaSquirt use?
TunerStudioMS is the software application that is used to tune your MegaSquirt EFI controller. The latest version for Windows, Linux, and Macintosh can be found at www.TunerStudio.com .
How do you tune a warm up enrichment?
On the Warm up Enrichment Analyze tab, go ahead and click “Start Auto Tune”. There will be steady active filters until the engine is started, so it will not begin processing the data. Now proceed to start your engine.
What is Accel enrichment?
Acceleration enrichment is a simple throttle transient fuel compensation calculation. Using the change in TPS (TPS delta) as the primary factor, the PCM calculates an Enrichment Fraction. The enrichment fraction is then added to the current commanded fuel.
What happens when the throttle is open quickly?
If the problem is really severe, you might even begin stalling when coming to a stop or when the throttle is quickly pressed. This will inevitably contribute to poor engine performance and, if it gets to that point, it should cause your check engine light to come on.
What is ego control on MegaSquirt?
Re: EGO Control question. Closed loop EGO control means that the Megasquirt will adjust fuelling (a little) and try to match the “target AFR” you have set. e.g. if your AFR table says that under cruise you desire 14.7 AFR but the sensor is reporting 14.3 AFR the EGO control will try to lean the mixture out until your target of 14.7 is achieved.
How do I set the configuration parameters for my MegaSquirt® controller?
Some general principles to follow when setting the configuration parameters are: All parameters with a red label should be set with the engine off, and the power to your MegaSquirt ® controller should be cycled ( switched off and on) before starting the engine!
How do I add a Baro sensor to my MegaSquirt® controller?
To add an independent baro sensor to your your MegaSquirt-II™ (or MicroSquirt®) controller, use an MPX4250AP (the standard MS sensor). Run leads from: sensor pin #1 (signal) to header position X7 on the MegaSquirt ® PCB through a 1K Ohm resistor, sensor pin #3 to 5 Volts – use the via at the “M” in the copyright notice near the existing MAP sensor.
How do I tune my MegaSquirt-II™ controller?
To tune all the parameters of your MegaSquirt-II™ (or MicroSquirt ®) controller so that your engine runs the best it can, you will need to do the following: Then tune the VE table, the AFR table, and the spark advance table,