juddering on tickover

**Dougb** · 21st July 2010, 13:18

1.9cdti 150 have noticed that the car, while sitting at lights etc will judder as if the engine is going to stop and then it is fine. this only happens while stationary and not while moving. any ideas.

thanks

**mparks8590** · 21st July 2010, 13:37

have you cleaned your EGR / boost sensor?

i'd start there

**barney490** · 21st July 2010, 13:39

possibly air flow meter, father-in-laws was doing this, changing the air flow meter cured his.

**kamar** · 21st July 2010, 13:44

mine does it but its only a very slight judder bin like this 4 months no problems... so im leaving it..

**Dougb** · 21st July 2010, 13:48

cheers guys, new egr and boost sensor clean as a whistle due to breather mod so will put my astra vans maf in and see what happens............ hi ho hi ho it under the bonnet i go.........again!!!!!!!

**barney490** · 21st July 2010, 14:41

just as well you have the Astra as donor Doug,,,,,,

**hairy31** · 21st July 2010, 14:43

Originally Posted by Dougb

1.9cdti 150 have noticed that the car, while sitting at lights etc will judder as if the engine is going to stop and then it is fine. this only happens while stationary and not while moving. any ideas.

thanks

3rd injector wiring/ thats exactly how mine was ..........if you put aircon on and was stationary, it would try and stall

..........did the mod monday and it ticks over fine now...

**winnie2457** · 21st July 2010, 14:48

i get the same issues on my veccy estate cdti 150 its a 06 plate and my engine number is way ahead of the engine number when the modified the problem at the factory but i still have the yellow plugs on injectors

mine is fine at tickover but as soon as i switch on aircon it struggles to tick over very lumpy like it is missing or along them lines
turn air con off and all is normal staedy smooth tickover at 850rpm any ideas to this sorry to hijack thread lol