Hi every1 I've had a problem with my idle wen I start the car it goes up and once it warms up they go down to the normal position but soon as I start moving it goes up to around 1000 I touch the throttle pedal it goes back to normal but start moving again and same thing so I put my foot under the pedal to lift it and the revs go back to normal am I right in saying its not retracting properly or is it the pedal sensor I cleaned the throttle body but the same thing  it's octavia vrs mk1 any help would be good thanks

If you get it plugged in to some sort of diagnostics you can test your hypothesis by monitoring the value for the throttle position sensor (ignition on but engine not running!).

Both our cars do the same and have done for several years. Just gently hook your foot under the pedal and lift it. It's usually does it intermittently.

On 17/01/2025 at 17:23, petrolbloke said:

If you get it plugged in to some sort of diagnostics you can test your hypothesis by monitoring the value for the throttle position sensor (ignition on but engine not running!).

I'll have a look in to that thanks for the reply 

 

21 hours ago, mpm222 said:

Both our cars do the same and have done for several years. Just gently hook your foot under the pedal and lift it. It's usually does it intermittently.

Have u never had it looked at or could they not find anything wrong I think I'll look at the pedal sensor when I have time 

They only do it intermittently, they have never thrown anything up on the diagnostics. Just gently lift the pedal with my foot and they return to idle.

On 18/01/2025 at 14:06, mpm222 said:

Both our cars do the same and have done for several years. Just gently hook your foot under the pedal and lift it. It's usually does it intermittently.

 

That's not normal. I had my old mk1 Octavia for 12.5 years and over 150k miles and it never did it.

 

The pedal should reset to 0 when you lift your foot off completely. If it doesn't then it might be excessive friction in the pivot or a weak spring that is preventing it fully returning.

I'm going to have a look this weekend I have cleaned the maf but still doing it it's so annoying I've had 6 mk1s 1.8t and never had this problem thanks for the reply 

Mpm222 u need to check for coolant leaks I found a coolant leak at the hose on the coolant temperature sensor housing only a little 1 not noticeable run ur finger under the hoses see if its wet I drove today with no issues