Z19DT EGR Blanking Help....Please

[Vectra Adz]

Well... Today i blanked my EGR off.......


I also cleaned that lil boost sensor thing on rad, and cleaned boost pressure sensor on back of inlet manifold...

Now.. it rev's alot more freely... but slugish when going from idle to around 2.5 then picks up were as before it was other way round?

Any idea why this is.???? tbh.. i preferred as it was before lol. Thanks

[Dan_BlackSRi]

Well... Today i blanked my EGR off.......


I also cleaned that lil boost sensor thing on rad, and cleaned boost pressure sensor on back of inlet manifold...

Now.. it rev's alot more freely... but slugish when going from idle to around 2.5 then picks up were as before it was other way round?

Any idea why this is.???? tbh.. i preferred as it was before lol. Thanks

Just to confirm, now you have blanked your EGR, it has lost low down power before 2.5K?

Is everything tightened up properly, assume you now have the spanner/emissions light on now?

Is it a full blank? Looking at your other posts, it seems your EGR might be faulty, do you still get the soot on the outside of the expansion bottle?

[Vectra Adz]

I put the blanking plate on the inlet manifold??? Im assuming thats where i wanted it to go ? I wernt 100% as im not really a mechanic lol....

Everything is defo tightened up yes. And EML is on and its saying EGR Permanent...

And not had a chance to see if its still leaking, to which is dont sound like it is any more...

I also put airbox back on today as well....

[Dan_BlackSRi]

Is this a 150 or 120?

[Vectra Adz]

Is this a 150 or 120?

Sorry its 120. Thanks

[Dan_BlackSRi]

Sorry its 120. Thanks

Was it a full blank, or one with a hole?

It sounds like the EGR may not be sealing properly, you could fit another blank to the exhaust inlet side to rule that out - seems odd that its made it more sluggish.

[Vectra Adz]

Yes it was a full blank yes. Will that do anything then by blocking that other bit of as well?

[Dan_BlackSRi]

Yes it was a full blank yes. Will that do anything then by blocking that other bit of as well?

Normally when an EGR seals up ok, when its blanked the manifold gets no EGR gasses and the exhaust fed has nowhere to go and basically ends up only going out of the exhaust, if your EGR doesn't seal then blanking the exhaust side could still mean the manifold has (in essence an air leak) or blanking the manifold side would mean exhaust gasses are leaking - blanking both stops them.

I'll be honest, I am led to this based on your other post saying that something had been blowing crud onto your expansion bottle (where the EGR is), so may not be the case.

[Vectra Adz]

I will try that and see what happens then, ive noticed on my journey home its gone from 40.9 avg MPG to 39.0mpg.... drove no different.. but it never really moves from 40mph tbh.. and when you rev it on the spot it feels juddery as such... i just want it to work lol...

[Vectra Adz]

help please