My Astra is sick!

AceOdinn

Hey, guys!
I'm new here, and I need your help.

I drive Opel Astra G with Z22SE engine. And some time ago my engine gone bad.

Engine starts normally, but after 20 seconds is stops, when it start reducing turns. May be it's a dirty throlle, I don't konw. But the basic problem in bad acceleration. Engine accelerates pure in low RPM's (till 3000 RMP approx) then, burns tyres 🙂 And in full trottle in goes worse than in a half trottle. It's funny, when I begin lifting my leg from the trottle pedal when it's fully pushed - car accelerates 😃
There are no errors in my ECU, only lambda2 error cause of dead catolic converter.
My pre-cat is deleted already.

How can I find my problem? From what should I start searching?
Fuel preassure? Ignition?

Oh - trottle works correctly and opens completely.

I sorry for mistakes!

vocky

have you tried a new coil pack dunno..

or the egr valve might be sticking

AceOdinn

well, it may be a EGR valve?
I thought it don't influence in big RPM'm or in full trottle.... hmmm

About ignition coils - I don't feel any spark faults. But may be you're right

AceOdinn

Today I sealed the EGR pipe wich leads down the trottle body. And I found no differens in engine work.
Besides I clearned the trottle body too.
And I found two interesting moments:

pipe from ERG valve are dangles in those part where it connects to inlet manifold. I saw catalogue - there mast be O-ring. Probably it's lost. So there could be a leak of vacuum. It's strange because this way must be unstable idling.
it's seems to me I had a cracked exhost manifold, or something... I saw gases coming from there.

So first of all I'll try to find out what happened with exhost....

And guys, I need some help!
I read somewhere here about pluging that hole from the EGR valve pipe. Something about VW Polo thersostat plug or something. Can you tell me exactly what I need?
And can you give me a link to EGR cheater topic, please!

Thanks a lot!
And sorry for mistakes. I began forgotting English =(

vocky

this is what you are looking for

viewtopic.php?f=86&t=12915

AceOdinn

Oh yeah! That's it! Thanks a lot!