Ranger Mods

hello, can the error P062B be caused by too large intercooler? too low pressure in the inlet?
injectors replaced.
ecu replaced
The wiring harness has been checked.
the error pops up only below 1500 rpm, only while driving.

Looks to be injector control circuit specific. No mention of airflow.
When weird electrical stuff happens check all grounds and power connections are good, especially ground wires connected the engine.

P062B
Description: This DTC sets when the fuel injector energizing time is greater than the permitted energizing time after overrun demand by the driver.
Possible Causes: Aftermarket performance products. PCM programming error
Diagnostic Aids:
Check for sensor and circuit related DTCs. Reprogram or update the calibration. Check for other DTCs
or drive symptoms for further action. Make sure to check for aftermarket performance products before
installing a new PCM.

injectors are new, not regenerated. I entered a new number. injections for pcm. should I do anything else. How to calibrate the injectors?

Internal Control Module Fuel Injector Control Performance

Your mileage may vary for some of these items as I have based this on a 2015+

Make sure you have changed the injector id's
Reset pilot injection
Reset high pressure fuel

Look at the 6 character injector id on top of each injector and then compare in Forscan, change if not correct.

I did everything as described.
I drove 500 km and the same thing again.

There is no more info on Ford PTS so you are on your own.

I can only suggest doing a PCM update to the latest calibration and see if it resolves the issue.

you can tell me what it should be like:

MAP.
MAF.

Could be anything, see CatHerder's comment for DTC.

Could be fuel pump issue or more likely suction control valve issue that regulates fuel pressure on the back of the high pressure pump. Who knows.

Clear DTC and do some comparisons. Does it only do it at wide open throttle as it look s like you had throttle wide open when the DTC was set?

the throttle is closed. I don't touch the accelerator .
the error pops up only when the engine speed is less than 1500 rpm.

Does it try and stall?

the error only appears at speeds below 1500 rpm.
The engine must be warmed up.
The car moves downhill or straight, but the revolutions do not exceed 1500 rpm.
I can brake or drive at a constant speed.
If the RPM drops below 1500, an error will pop up.