Quote Originally Posted by Barrbeast View Post
Hi folks

After a part number for a 24v Throttle Position Sensor for a 1990 Safari TD42 auto.

Mine has started showing issues going into TC lockup and staying there when before she would stay in lockup no bother. A manual lockup switch has been on the cards for a while anyway but I'm in a Safari group on Faceache and a guy with similar issues said replacing the TPS sorted it.

Cheers in advance.
The TPS generally runs on 5v and is easy to test with a voltmeter before you throw your money away.

It might simply be the TPS that needs slight adjusting but a TC lockup without the manual override very rarely stays in lockup if you accelerate. It's designed that way to avoid the torque making the flimsy lockup clutch slip.
Are you perhaps applying more pedal than before because of extra weight or slight loss of power for some reason? That would force the TC to unlock if it were locked..