What is injector quantity adjustment?
What is injector quantity adjustment?
→ Correction of the fuel quantity of new injectors. → Individual correction of tolerances at each point in the. characteristic map for each cylinder (injector) → Influence on the fuel quantity by.
Why do you need an injector adjustment code?
The adjustment codes also increase injector efficiency on the engine and improve emissions. Various engine manufactures call them Trim Codes, Injector Calibration, Injector Flow Rate, Injector Classification Code, Injector Correction Code, Flow Rate Programming, and Injector Delivery Compensation.
How to enter IQA code for Duramax injector?
If your scan tool has not been updated recently you may run into an issue entering IQA codes, because the latest codes are not listed. L5P Duramax 26 digit Injector Quantity Adjustment Code for flow rate programming. Note: Leave the “F7” and add the trim code after it, when entering the code into the ECM.
When to do the fuel injector flow rate programming?
The fuel injector flow rate programming must be done when any of the following procedures are performed: If the ECM does not communicate, the flow rate information can be retrieved from the GPCM.
How does injector quantity adjustment code for Oregon fuel work?
This works by injecting a small amount of fuel into one cylinder during overrun conditions (on deceleration). The wheel speed sensor detects the resulting torque increase as a minor dynamic change in engine speed. The increase in torque is imperceptible to the driver, but is clearly linked to the injected fuel quantity.
The adjustment codes also increase injector efficiency on the engine and improve emissions. Various engine manufactures call them Trim Codes, Injector Calibration, Injector Flow Rate, Injector Classification Code, Injector Correction Code, Flow Rate Programming, and Injector Delivery Compensation.
Where do I find the IQA code on my injector?
Injector Quantity Adjustment codes are located in different locations on the injectors. Some rebuilt injectors will have IQA codes on the box or the bag it is packaged in. Be certain to note the code and the cylinder you installed the injector in, and enter them into the ECM.
This works by injecting a small amount of fuel into one cylinder during overrun conditions (on deceleration). The wheel speed sensor detects the resulting torque increase as a minor dynamic change in engine speed. The increase in torque is imperceptible to the driver, but is clearly linked to the injected fuel quantity.
How to check the calibration code of an injector?
Using your scan diagnostic tool, enter the new calibration code of each injector into the correct cylinder. If the calibration code is not accepted, check that the correct vehicle (make/model/production date) and ECU manufacturer has been selected in the scan diagnostic tool.
