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1

Omega General Help / Re: 2.2 rough idle when cold

« on: 18 March 2016, 16:30:10 »

Today was - 8 Celsius.  Cold start idle revved in 3000rpm and then dropped.

When i bought car cold idle was max 1500rpm no matter how cold was.


Something is now went wrong.  No fault codes.

2

Omega General Help / Re: 2.2 rough idle when cold

« on: 15 March 2016, 18:47:28 »

Couple starts idle was okay.


Today it gived new code: p0170 

What is most  common sympton for that?  I cleared it and it disappeared at least.

3

Omega General Help / Re: 2.6 manual vs 3.2 auto

« on: 05 March 2016, 18:29:18 »

90% of manual cars doesnt win their automatic cousins.  Me and my friends had measured accelerations with gps.  Manual feels quicker but clutch, sifting etc take time. Even 0.5 seconds miss couple times is big in total time.

Pretty good overall is 1-2s more than factory promises in manual.  Depends clutch / manual harshness too.


Automatic wont do mistakes and you can just press more gas...

4

Omega General Help / Re: 2.2 rough idle when cold

« on: 05 March 2016, 14:16:18 »

But it haa been that all the time.

5

Omega General Help / Re: 2.2 rough idle when cold

« on: 05 March 2016, 11:16:05 »

No 1 coilpack rubber boot?  (that one where plug comes inside) has hole about size of little peanut. Its bottom side so i dont know can it cause that symptoms.

Hard to explain...

6

Omega General Help / Re: 2.2 rough idle when cold

« on: 04 March 2016, 21:32:11 »

Fuel consumption has been very good all the time.  About 7,7 liters per 100km (60miles).

I have "My Naff Code Reader" but it wont find anything and all sensor voltages etc are good.


That bothers me: why semi or allmost cold engine only?  Not warm or full cold.

Maybe i have to buy new plugs.  Coil i dont wanna buy yet, nobody has same car so hard to try that without new.

7

Omega General Help / Re: 2.2 rough idle when cold

« on: 04 March 2016, 11:12:42 »

Pedal test ok.  No trouble codes or check engine.


Today i first time tried press pedal immediately after startup.  It dropped faster idle to normal but that roughness continued.

So seems to be like thay roughness is under 1500rpm and it lasts about 5-15seconds no matter rpm range and then disappears.  When i also tried 2000 rpm after startup it was fine.
And this is again with engine started before and cooled about 2-4hours.

Today was - 5 and it standed about 4h before next start so its very close to full cold engine.



But first cold start in morning no problem again.

8

Omega General Help / Re: Poor idle warming.

« on: 03 March 2016, 17:10:17 »

Okay that's nice to heard but bad. I mean that rubbish warming 


So is that auxilary pump's only benefit that  interior warming in engine off?

I have block heater but im so lazy to use it.  Never tried...



Is 2.0 ecotec much better to warm?

9

Omega General Help / Re: Poor idle warming.

« on: 03 March 2016, 16:44:33 »

Sorry my bad language. Idle works well.


I mean engine and interior warming in idle! 

10

Omega General Help / Re: Poor idle warming.

« on: 03 March 2016, 15:53:00 »

Sorry!  2.2 petrol MY 2000.

11

Omega General Help / Poor idle warming.

« on: 03 March 2016, 14:49:40 »

I nees help for this too.


My omega warms lazy in idle.  In subzero temps and little bit warmer it takes long time to warm in idle.


If i rev it gives acceptable heat inside and temp rises better too.


In highway and city after warm up it has 90degrees in gauge and it stays it.


Thermostat is pretty new like water pump.  Coolant is bright.  Heater core is not plausible because warm air comes after engine warms.



Auxilary waterpump works too.  Today checked it and wired it again because it didn't got power in original wires.


It works because if i stop car it gives warm inside still.  Long time.  When it didn't worked it blowed cold air after engine shut down like normal system without pump.



Are these just lumpy warmers?


When i bought car and this moment,  max temp are about +5 celcius.  So  i need hint for cold.  Today - 10 celcius.


Usually i start my cars 15-20min before driving in freeze temps and then its nice to go warm car.  Not in this case.

12

Omega General Help / Re: 2.2 rough idle when cold

« on: 03 March 2016, 14:41:40 »

Manual.  Vacuum hoses are new now.  No effect.

-10 celcius in the morning and runs fine again.  But after 2hour it stumbles again.  Whole engine vibrates and then it goes lighter and then disappears.


Very difficult to say is it misfire or another hesitation.

13

Omega General Help / Re: 2.2 rough idle when cold

« on: 02 March 2016, 11:22:52 »

I found only egr cleaning guide.

14

Omega General Help / Re: 2.2 rough idle when cold

« on: 02 March 2016, 09:08:38 »

2.2 doesnt have ICV.

If i block egr and take socket off,  will fault code do changes to mixture etc or is it  just a code?

Or will metal plate under egr work with egr socket on?

15

Omega General Help / Re: 2.2 rough idle when cold

« on: 01 March 2016, 12:06:50 »

Ill do those checks too

Cold engine no problem but now aftee 3h stand it was little roughness again but revs was 1500 max not 2000. But idle is not that rough than before cleaning.