Very Rough On Idle

[jobo]

recently my glanzas engine has made a problem for its self, the idle is rising and droping, it drops to nearly stalling out then goes back up to over 1000 rpm

i have cleaned the idle control valve and swaped all the plugs over to see if it makes a difference but its just the same.

it was serviced on saterday new plugs oil filter etc, when i took the plugs out the wer thick with soot and i had only covered 80miles

its running rich? i think thats what it shows

its forged

tdo4

emanage

etc

anyone got an idea

[Raz]

i have the exact problem! I often have to sit there and rev it abit untill it becomes steady enough to leave it alone.

hope fully it is an easy cure!

[redz11]

throttle position sensor? sounds similar to a problem i had with it revving and cutting out..

[lukEp]

Yeh lee is correct throttle position sensor might not be closing/switching off correctly, try forcing the throttle closed while the engine is running to see if it moves back anymore, the tps is just a on off swich unless you have and automatic gearbox and if the throttle is closed and the switch is still saying to the ecu it's open all funny things happen.

[mr karnage]

if its running rich, when you rev it youll have pops and bangs and maybe some FLAMES

[Raz]

really lol my one pops and bangs, no flames though

[jobo]

i get alot of pops and bangs some good flames 2. i think it could be map sensor, i will also try the tps.

[Russleh]

mines revs up and down and cuts out once in a blue moon aswell but im not worried as im blaming it on the fact that i have a little oil fountain in my engine bay lol