Toyota P1601 Fault Code

Question

P1601 often happens on Euro 5 spec'd Toyota Hilux and Hiace Vans fitted with the 1KD-FTV or 2KD-FTV engine after the injectors have been replaced (Re-Coded).
This is because the PCM has a known learned value for Pilot Injection Quantities stored, but it has now also been told that new injectors have been installed.
In order to fix this issue a Scantool is required to Reset the Pilot Quantity Learned Values.
This issue is unique to Euro 5 spec'd vehilce's, typically with the part number 295050-0460__ fitted Injectors

Answer 1

Thank you for the information!!!