Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: markspark on 30 October 2011, 19:31:50

Title: What would cause this on a 2.2 dti
Post by: markspark on 30 October 2011, 19:31:50

im driving on the motor way at 70mph (of course)in 5th gear and i have to slow down for whatever the reason and the revs drop to around 1000-1500rpm and i put foot back on the gas the car seems to miss a beat or to when the revs get back upto 2000rpm then its fine again its not causing a problem driving the car its just one of them things that buggs me
there are no faults stored as the engine light never comes on when it does it
what the heck is it ????

Title: Re: What would cause this on a 2.2 dti
Post by: Omegatoy on 30 October 2011, 20:40:22

would guess at sticky wastegate on turbo, i.e off pedal turbo wastegate opens until the throttle is applied again, if its sticky it will take time to shut properly so the turbo can boost,

having said that the reason i didnt like the 2.2dti i bought was the poor throttle response always seemed to be a bit sluggish to do what you wanted it to do!!

Title: Re: What would cause this on a 2.2 dti
Post by: markspark on 30 October 2011, 21:41:44

surly it wouldn't only happen when it hits 2000rpm if it was the waste gate ???

Title: Re: What would cause this on a 2.2 dti
Post by: otomega25 on 31 October 2011, 08:15:02

Hello! I have the same problem, but to me it behaves in step 1 the speed and acceleration after a big break, explode at 2500-3000 rpm, I have error code P0400, I checked the EGR is good, all electric valvs (solenoid) are good, boost sensor is good, good air flow meter, but I noticed that after a diagnosis decreases the amount of air measured after 40 seconds from 450-250 but the 2.2 diesel tis2000 writes that should stay between 350 -450, vectra b 2.0 diesel only write that you have to drop after 40 seconds at 250 ... I have omega B 2.0 engine and software for 2.2 diesel.

Title: Re: What would cause this on a 2.2 dti
Post by: dustybin on 31 October 2011, 10:23:54

I'm having somular problem the waste gate wont go back to drop the pressure to let the turbo kick in. Any ideas on how to fix this.

Title: Re: What would cause this on a 2.2 dti
Post by: markspark on 02 November 2011, 23:51:20

im not sure how the waste gate works so im unable to test or inspect it
any help anyone

Title: Re: What would cause this on a 2.2 dti
Post by: Simon72 on 03 November 2011, 06:21:17

Also having a very very similar problem.

Look at my thread and see if it looks and sounds the same.

A few people replied in their with suggestions as well.

http://www.omegaowners.com/forum/index.php?topic=94565.0

Title: Re: What would cause this on a 2.2 dti
Post by: markspark on 03 November 2011, 19:25:31

mine only ever does it at 2000 rpm its a strange one

Title: Re: What would cause this on a 2.2 dti
Post by: otomega25 on 04 November 2011, 11:04:49

i will clean the boost pressure( again) and i will post the resultats

Title: Re: What would cause this on a 2.2 dti
Post by: otomega25 on 10 January 2012, 14:41:38

Quote from: otomega25 on 04 November 2011, 11:04:49

i will clean the boost pressure( again) and i will post the resultats

I cleaned everything! EGR sensor, pressure sensor, maf, check solenoids, solenoid I replaced the code 24435269 and so I make it a little better but if I go slowly appears p0400 (2)...