Tie Me Kangaroo Down Sport

[Guest wrinklygit]

Just to continue from my earlier newbie post,I have now cured various air leaks on dizzy vacuum pipe & AFM to Thr/body hose,however I still have a huge flatspot,which induces kangarooing between 2-2500rpm.

just put a meter across the TPS & there appears to be a problem at about 1/4 throttle,anybody replaced just the TPS,does it need any setting up (car is late 92,noncat 1.6).I have looked at an earlier car & TPS has

elongated mounting holes,presumambly for adjustment,mine doesn't have this,looks like it bolts straight on.Any advice or source of parts appreciated,MIKE.

[pug_ham 245 3 Cars]

Whats wrong with the TPS readings?

 

The readings should be zero ohms resistance with throttle closed between pins 18 & 2, infinity between 18 & 2 when part open & zero again between pins 18 & 3 at fully throttle.

 

I've replaced a throttle swicth before but that was due to idling problems & the switch closed reading still being infinity.

 

There should definately be adjustment on the switch mountings though, can you hear the switch click when you open the throttle & again at full throttle?

 

Graham.

[Guest wrinklygit]

Hello,TPS can be heard clicking on opening throttle,readings on meter "drop off" in the same way a crackly

volume knob on an amplifier would react(if that makes any sense)MIKE.

[jackherer 543]

Hello,TPS can be heard clicking on opening throttle,readings on meter "drop off" in the same way a crackly

volume knob on an amplifier would react(if that makes any sense)MIKE.

 

that would make sense if the tps was a potentiometer, but its not, its just a switch (on or off)

[Guest wrinklygit]

Thrown meter in skip,rechecked with another meter,TPS is switching at open & close points,plan B is to check CO/mixture (imitation K&N cone filter fitted by previous owner),are there any tests I can carry out on AFM,MIKE.

[vikgti 0]

For checking Afm check on the main front page of www.205gtidrivers.com and click under 205 GTI Injection Basics and you will find the info you need