Throttle won't hold a constant rev

[Silent_Running]

Just taken my 01 Octavia 1.6 for its MOT and the garage said they couldn't get the throttle to hold a constant rev between 2 - 3,000 rpm for the emissions test. I even tried and found it impossible. Once you get above about 1,200rpm the rev's just keeps increasing. I've not noticed any problems whilst driving, and cruising along is fine.

Anyone any idea's?

cheers

[jmf]

Yea, shift into 2nd or 3rd and use the clutch to hold the revs

[Silent_Running]

Not really an option in an MOT jmf. The car made it through but I was wondering what the cause could be? The blokes thought it was electrical?

[jmf]

Weird, when i was in for the equivalent of MOT in Romania the guys there actually did this, since they also couldn't hold the revs constant

[jaba101]

Had an Ibiza sport a few years back 1.6sr that did the exact same thing, turned out to be somthing to do with the electronic throttle.

Cheers

[fordfan]

I've come across that when assisting with MOTs, especially on the 1.6 AVU engine. What I've found is that you can do it by loading the engine, by having all the electrics (lights, heated rear window, fan, etc.) on, the air conditioning on and having the steering on full lock. This gives you a little more control and it can be done with practice.

[Octavia02]

Hi,

Did you ever find out the cause?

I am having the same problem and any ideas on the cause or how to remedy it would be much appreciated.

Thanks