Astra H stalling,rough idle

user3 · 10-12-2014 8:36pm #1

Hi all
I have a 04 Astra h engine code z14xep, been having few problems with the engine.

Once the engine is warm after approx 15 mins of driving it starts to judder (feels like rocking forward and back) and the spanner light comes on which stays on for a wile but this only happens when you are getting lean burn as in have your foot very light on the throttle but once you press harder the juddering goes away.

Another issue is that once the engine is warm it starts to idle rough as well as stall at the junctions or whenever you are stopping once you clutch in, the revs might drop to 500 and come back up and sometimes it doesn't therefore stalling the engine.

I have replaced the spark plugs which made little to no difference. I have read that it might be coilpack or the egr valve.

Hopefully someone can advise me on this as i don't wanna go out replacing parts that are not causing the problem

biko · 10-12-2014 9:08pm

Get error codes read, once dash light comes on some codes should be generated to point to a specific trouble area

user3 · 10-12-2014 11:01pm

Multiple P1405 codes come up and that is relating the egr valve I think. P0300 and p3004 have come up previously but have disappear since. I was told not to bother cleaning/replacing the egr as it doesn't have much effect on this type of engine don't know if this true or not, what are your thoughts?

arthur daly · 11-12-2014 4:11pm

user3 wrote: »

Multiple P1405 codes come up and that is relating the egr valve I think. P0300 and p3004 have come up previously but have disappear since. I was told not to bother cleaning/replacing the egr as it doesn't have much effect on this type of engine don't know if this true or not, what are your thoughts?

My thoughts....if a diagnostic scanner showed faults fix them especially egr it will play havoc onbthe car.
Could be plugs leads etc either

Astra H stalling,rough idle

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