Abnormal juttering when cold - more so than normal

[mag1caltrev0r]

When starting from cold my car seems more juttery than normal (I'm aware this is not uncommon). Constant throttle results in uneven power which makes the car seems like it can't make up it's mind between going and stopping. Once warmed up however it's absolutely fine.

This seems to have got worse so I'm wondering if anything is wrong? Is there anything that I can check or should I get my mechanic friend to have a look?

Thanks

 

[MicKPM]

Chances are it'll be either the Coolant temp sensor or the Pre-CAT Ho2 sensor heater at fault but ideally a quick look at the vehicles live data from a proper cold start will confirm this.

Mick

 

[mag1caltrev0r]

Thanks Mick!

 

[ScarySquirrel]

I had the same, bought a new lamdba sensor and changed with the pre-cat one, and it fixed it immediately

£61 odd from NW Performance.

This is my thread on it - http://www.cliosport.net/forum/showthread.php?601259-Codes-P0130-amp-P0135-Pre-cat-lambda-what-to-do

 

[mag1caltrev0r]

Thanks massively my Squirrely chum.

I'm wondering... the location mentioned in your thread is also the location where I'm hearing a rattle when high into the rev range (on occasion). I'm wondering if I'll find something loose around there that also affected the lambda sensor?

 

[Dean0o0o.]

I've got exactly the same issue on mine. Lambda sensor didn't fix it. I've got a coolant temp sensor to fit, just havent got round to fitting it yet.