in need of help

kevin_heath

Hi desperatley need some help i have a 2004 astra coupe 2.2 it has a very lumpy idle and intermitent hesitation on acceleration i have changed the timing chain. Blanked of the egr and changed the cts sensor but still no joy could you please help as i love this car and dont want anything to happen to her thanks kev
Please note this is my first thread not sure if in the right place thanks guys

Dave_Gilbert

Welcome to the site.

any lights on the dash?

Could be a dirty throttle body maybe

kevin_heath

Hi thanks for the welcome.. no their is nothing on the dash was going try cleaning the throtle body next.. its weird because i can start it first thing and its fine but if i stop the shop on my way and the kick it back in thats when the problem starts but if i leave it a couple of hours and then start it again its fine

Dave_Gilbert

Have you used a egr cheater?

kevin_heath

No i just blanked it off and left the egr plugged in tucked away

Dave_Gilbert

Saying that if the egr wasnt moving it would throw a eml up.

When was it last serviced? Plugs, fuel filter air filter, some injector cleaner.?

Sjdickso

With it been 2004 it shouldn't have a pre cat but you knever know, that may be collapsed or your Actual cat?

kevin_heath

Serviced about 3 months ago when i replaced the coil pack and oil done again about 4 week ago when i had the chain done

Dave_Gilbert

We have heard about cats collapsing it could be at fault.

So
new
coil
plugs
fuel filter
air filter
cleaned throttle body
no egr

n chains replaced

id say some good injector cleaner and a good blast.

vx-chris

Just throwing it out there, but what about the cts?

Dave_Gilbert

He has replaced the cts allready

vx-chris

Oh are i missed that

kevin_heath

Wel thanks for the info guys will try injector cleaner at weekend see if it helps

KevinH

As mentioned above (by Dave) it sounds like the the throttle body could do with a good clean, and at the same time unplug the air intake temperature sensor and ensure that is clean (using carb or brake cleaner). 🙂

Out of interest were the spark plugs changed when it was last serviced ?

kevin_heath

Yeah i have had tow new sets of plugs in the last 3 month or so just to be sure. Its really bugging me now cus i love the car i just want it running right now so i can hopefully try and get more power out of it

Sjdickso

Try Cat a Clean, expensive but is meant to be very good as a cleaning agent.