A650 o/d

The 1UZFE EGR Delete Kit is available for sale here.


New Member
I have a fj40 with a 1uzfe vvti swapped in it. It has the a650e 5speed transmission in it. The ecu shows p1780 o/d code while my transmission has no overdrive switch. I am a complete newbie in swap . Any help would be much appreciated.
The transmission gets hot on long drives and i have ordered a trans cooler and temp gauge . I have never gone above 100 kmph so not sure if the 5th gear engages. I have changed the oil , oil filter and gasket recently ( 1month ago).
So the PNP (or maybe TRS?) switch is malfunctioning and telling the ECU the selector is in the wrong position?

Please let us know what effect the transmission cooler has on temps.