mpales

I own a sierra cossie 4x4,and i have problem with idle speed.The problem began when my speed pedal cable broke.I put a new one ,and after that the rpm is not stable...when i start the engine the rpm goes at 550-700,when i press the pedal just a little the rpm start rising and settle at 1100,when the fan starts rpm goes down to 550..I disconect the iscv,and the rpm drops down to 500-i turned the screw to increase,but when i connect the iscv the rpm goes to 1100.Is it wrong the iscv,tps?I dont understand how its possible without touch anything,but only when i changed the f..cable (from pedal to throtle),starts all these problems with the rpm....if i changed the tps-what is the procedure to adjust?

Ant RS

If the car didn't have these problems before you fitted the new cable then I would suggest that the new cable you fitted is trapped somewhere causing the inner cable to stick.
Make sure of this before you start adjusting things.

mpales

finally all my problems gone...it seems that when my speed cable broke,the throttle close very fast and the tps failure.
I bought a new one tps put it on and my cossie run now again perfectly
!!!!!!!!!!

gaz4x4cos

hello mate , how easy was the sensor to fit , i have a similar prob and been told by an expert that my tps had been sending out odd readings , would like to fit myself to save abit off cash .

Ant RS

I'd like to know how you set these up properly too.