Can this be cleaned out if so how?

Cheers

Darren

 

I did mine with some electrical contact cleaner, before you remove the sensor be sure to mark it so that you can put it back in exactly the same place. I squirted loads in then moved the slider by hand a few times. It cured a really annoying problem where the tick over would stick between 1500 - 2000 rpm.

 

when these sensors finally go will this cause problems for the ecu like hesitation and stuttering under WOT and partial throttle

 

Is there any way of testing these?

I've got a slight hesitation problem, and suspect this. It seems to be electrical - airflow sensor is fine, no intake leaks or strange noises, etc.

 

Testing pre MY97 TPS units...

stick a multimeter on the connector contacts. Measure the resistance. There are 2 pairs of connectors - one for the TPS and one for the idle switch. The TPS resistance should change smoothly with throttle angle and the idle switch resistance should be 0 when the butterfly is fully closed, and open circuit at all other times.

You can position the TPS unit on the car using a multimeter too. Simply connect up the meter to read voltage, and measure the TPS signal. It should be 4.7v at idle - with the idle switch voltage as 0v.

Alternatively, use a select monitor

Hope this makes sense, it's late and I'm tired!

 

cheers dnb, I'll try it later today