We have had P026D on and off for 4 years.
we have changed every part associated with this.
we were then told to replace a NOX sensor after a few days the car stopped in middle of road.
waited a while then it started again.
it showed we needed a fuel pump drive module did this
now codes we occasionally still get P026D but now have P157A quite often.
A friend suggested we get an auto electrician to look at it.
Help any suggestions. We’re in Australia