What should my AF correction be?
What should my AF correction be?
It should ideally be in the +/-5% range. Your AF Learn 1 looks good.
What is AFR correction?
AFR Correction is how far the ECU is correcting from the base map. A negative number means that it is subtracting fuel and a positive number means that it is adding fuel. So in your case it is subtracting roughly 10% at idle to meet the AFR you input in the Air Fuel Ratios on the tablet.
What should af learning be at idle?
That’s normal. Up to about +/- 12% at idle, and +/- 8% under load.
What does negative af learning mean?
fuel is being removed
Negative values indicate fuel is being removed. AF Learning 1 Idle 1 (AF Learning Idle1) -> Long-term (learned) fueling correction during idle conditions below the RPM breakpoint. Negative values indicate fuel is being removed. This value is determined and applied based on the first mass airflow range only.
What does TD boost error mean?
or overboosting
TD Boost Error shows where your car is under or overboosting. Keep in mind, you also won’t always hit the requested boost pressure under every circumstance. For example this value isn’t very useful when you aren’t driving at full throttle.
What can I monitor on my Accessport?
Values outside of these ranges are commonly a dirty MAF or tune issues. It is normal to see values outside of these ranges while the car is not under load( such as -10 to -12 at idle)….
- Stay out of boost.
- Get the tank low.
- Fill up with reputable fuel.
- Let the car learn back to normal.
Is feedback knock bad?
In general, we consider Feedback Knock Correction ~-2.5 degrees or less to be “normal” and not of major concern. If DAM is below the ideal value and there are corrections beyond -2.5, this is good reason for further inspection.
What is TD boost error?
TD Boost Error shows where your car is under or overboosting. Keep in mind, you also won’t always hit the requested boost pressure under every circumstance. For example this value isn’t very useful when you aren’t driving at full throttle.
How do I monitor my TD boost error?
The best way to determine if you are hitting target boost is to watch the TD Boost Error parameter. This parameter is your target boost (including altitude and temperature compensations) minus your actual boost (negative values mean you are over the target by the amount while positive values mean you are under).
What does boost error mean?
The TD boost error shows how far over or under you are from your boost target with all compensation tables applied such as Air Intake Temp and Barometric pressure.
What causes dam to drop?
As the DAM was intended for Octane adjustment, the primary cause of the DAM dropping on a stock motor is likely fuel quality. HOWEVER, chronic DAM scaling can be indicative of vacuum leaks or even oil dilution.
What should my a / f ratio be for air fuel?
Air Fuel Tuning (A/F Tuning) Programming ECU settings for a optimul A/F Ratio. * Your target AFR should be around 14.7:1 in vacuum, around 12.5:1 at static, and around 11.5-11.0:1 as you approach your peak boost level.
What should AFR be for mechanical fuel injection?
Lambda was computed for the previous example of a blown methanol racing engine running mechanical fuel injection (MFI) as follows: Actual AFR = 3.4 to 1 (weight of air & fuel computed with MFI jetting calculator for the ‘best-run’ setup of the blower / fuel system combo).
Which is the correct way to tune fuel injection?
A more precise way to tune is either by measuring and controlling air/fuel ratio (AFR) or by measuring and controlling lambda. This is how electronic fuel injection (EFI) tuning works.
How can I Check my air and fuel mixture?
The air/fuel mixture can be analyzed by looking at O2 Sensor data from your ECU. Another way to monitor your air/fuel mixture is with an Air/Fuel Ratio Gauge. Many AFR gauges also display lambda value.