Print

Please login or register.
1 Hour 1 Day 1 Week 1 Month Forever
Login with username, password and session length

[Andy B]

All the codes should clear after ? clean starts. Forget how many

afaik thats true on the old steam powered omegas Esty, these new fangled drive by wire omegas are a bit more advanced in the ecu (thats Engine Control Unit for you olduns) dept. come on gramps, keep up.

The very same code on SWMBO's DBW AStra G cleared all by itself, so I would imagine the same of a DBW Omega.  :-/

Yes, thank you Andy. Don't you just love it when these nippers are wrong.

      

[alunonhisown]

So, is no-one going to tell me where I go from here?
Does no-one know?
Do I make arrangements for a long trek to a Tech II member?
Some advice would be gratefully appreciated.

[feeutfo]

All the codes should clear after ? clean starts. Forget how many

afaik thats true on the old steam powered omegas Esty, these new fangled drive by wire omegas are a bit more advanced in the ecu (thats Engine Control Unit for you olduns) dept. come on gramps, keep up.

The very same code on SWMBO's DBW AStra G cleared all by itself, so I would imagine the same of a DBW Omega.  :-/

Yes, thank you Andy. Don't you just love it when these nippers are wrong.

Its not my experiene with that code, bot if you old timers want to stick together...
...anyway, it didnt cause the eml to come on so sumat else i guess, pre cat more likely?

[alunonhisown]

What is PRE-CAT?

[webby23]

Pre-cat means upwind of the catalysts in the exhaust system

 

[alunonhisown]

Thanks, but I am none the wiser :-/ :-/ :-/

[Andy B]

All the codes should clear after ? clean starts. Forget how many

afaik thats true on the old steam powered omegas Esty, these new fangled drive by wire omegas are a bit more advanced in the ecu (thats Engine Control Unit for you olduns) dept. come on gramps, keep up.

The very same code on SWMBO's DBW AStra G cleared all by itself, so I would imagine the same of a DBW Omega.  :-/

Yes, thank you Andy. Don't you just love it when these nippers are wrong.

Its not my experiene with that code, bot if you old timers want to stick together...
...anyway, it didnt cause the eml to come on so sumat else i guess, pre cat more likely?

Isn't that the codes that Entwood posted? If 0300 is showing, that's putting the EML on, so the car has a 'general misfire' ...............

[feeutfo]

What is PRE-CAT?

pre cat ifficiency low or out of range, again no big issue, but re reading you dont have that code yet anyway, difficult to go further wothout more concusive codes, tech 2live data might reveal more...?

[Entwood]

0300 = general misfire.

So its a misfire that the ECU can't pin down to any particular cylinder, or it is not consistently the same cylinder. ... if I understand the system at all ... (probably not)  ..

Worth checking that all electrical connections are firm, that the low tension wires to the coilpacks are undamaged and dry, and no water/moisture has got into either coilpack.

It might be unrelated to the ignition side of course, as a "fire" needs both ignition AND fuel... but what could cause a "random" type failure of fuel to igniters or "random" igniter operation ??.

Possibly a crank sensor not telling the ECU the correct rotational position for when to fire

Just random thoughts .. nowt else .. 

[Andy B]

0300 = general misfire.

So its a misfire that the ECU can't pin down to any particular cylinder, or it is not consistently the same cylinder. ... if I understand the system at all ... (probably not)  ..

 ......

On SWMBO's Astra I changed plugs, which fixed a 0302 for a few days. Then 0300 seemed to have been 'cured' with a bottle of Redex  :-?  :-?  :-?  :-?


and then finally fixed for good with a Hyundai Getz up its chuff!     

[jonnycool]

I've got a known working crank sensor here, if the 2 engines use the same one, if you want to eliminate it Di

[Lazydocker]

Let James come and have another look... I wonder if there's some water dropping in through the scuttle, with all the rain we've just had :-/ :-/

[jonnycool]

Let James come and have another look... I wonder if there's some water dropping in through the scuttle, with all the rain we've just had :-/ :-/

Yes, could be, rain was getting in through the scuttle on mine, causing a misfire by dripping onto the coilpack. Had to seal it with bathroom sealant

[Entwood]

DI, can you get the car into a garage overnight   Might be worth getting into the dry, leaving the bonnet up, blowing some warm air around with a fan heater and trying to ensure all wiring has dried out .. if the problem goes away you might have found the cause without a lot of effort ..

[Seth]

DI, can you get the car into a garage overnight   Might be worth getting into the dry, leaving the bonnet up, blowing some warm air around with a fan heater and trying to ensure all wiring has dried out .. if the problem goes away you might have found the cause without a lot of effort ..

Good idea Nige!
I'm still somewhat incapacitated after my op; though would be quite happy to do this for her here.
Could get Mrs Sethsmate to take her home, saying that, there's a good train service linking us anyway - £4.50 single!