Reply To: Intermittent 'Error' light

[Frank Wheeler]

Hi Graham

I have an OBD list for my 3200 and its related to the throttle body: P1225  Sensor position of butterfly circuit 1 [throttle body 3200GT specific]

I was getting this intermittently on mine a couple of years back. I had already changed to new throttle body and pedal pot so I knew there was unlikely to be a problem with these items, turned out it was a very weak earth connection from the throttle body where it connects to the front of the engine block (drivers side above cam belt cover) this connection has about 6 wires connected into one earth eye fixing and became poor underneath the plastic shrink sleeve. New eye fitted and soldered all in place with no problems since.

Hope this helps