Omega Owners Forum
Omega Help Area => Omega General Help => Topic started by: JONNYWAKEY on 09 May 2007, 17:24:34
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Guys
Here I am again wanting your expert opinion on my omega!
Finally read gearbox ecu and found the following:-
P0727 - Engine speed input circuit, no signal ? is this Crank Sensor?
P1781 - Can databus - ecm act torque signal malfunc detected
P1740 - AT Torque control signal malfunction.
Cleared these stored codes and then read engine ecu,
Presented with these codes:-
P0340 - Camshaft sensor - changed in Sept 2006?
P1700 - MIL request
Does this mean I need a new gearbox as car drives okay ?
Will a recon one do or is this repairable?
Cheers
JOnny
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As said before.....I still think cam sensor......or associated wiring......the codes are sudgesting the same
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Mark
Thanks for getting back to me, could this still be the cam sensor even though it was only changed in sept '06?
I thought the Gearbox ECU codes were indicating a more serious problem?
Cheers
JOnny
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Taxi driver is replying....lets see what he thinks...
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Does it sruggle to start sometimes? when hot?
If so change the cam sensor again!
If not they could be old codes......so i would just clear them first to see if any come back.
They look suspiciously just like the codes i was getting when it was my cam sensor.
I still get P1700.......but ignore it.....i carnt read the g/b ecu anymore with cheapo tech2 since it was upgraded to latest version.....so dont know what mine is complaining about.....but imo unless theres summat wrong with the g/b i would leave alone
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Mark beat me to it! lol.....but then i got distracted with a phone call.....i know excuses ;D
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Here we are again Taxi !
You are right, I do have trouble starting, if car takes more that 2 turnovers to start, EML comes on and sports mode is prohibited (Limp).
If I then turn off, wait for lights to go out, car starts straight away and EML goes off!
As I am an Aerospace Avionics engineer, I may try and chase the wiring on from the CAm sensor and replace the wiring loom and sensor at the same time.
Does anyone know where the wiring runs to ?
Cheers again
JOnny
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Here we are again Taxi !
You are right, I do have trouble starting, if car takes more that 2 turnovers to start, EML comes on and sports mode is prohibited (Limp).
If I then turn off, wait for lights to go out, car starts straight away and EML goes off!
As I am an Aerospace Avionics engineer, I may try and chase the wiring on from the CAm sensor and replace the wiring loom and sensor at the same time.
Does anyone know where the wiring runs to ?
Cheers again
JOnny
Yep defo just like mine used to do......new cam sensor fixed mine and like AA's i believe
If youve already changed it back in Sept06, I assume its been ok for a while since?
If not, did you change it yourself? Just i mention this, as a lying stealer told me they had changed it >:(
I would assume the wires goto the ecu......if your planning on replacing them.....which i would only do after changing the sensor again.....i would think its probably easier to run new wires....and cut the old ones off....as i suspect the wires will disapear into a big loom and be near on impossible to seperate them.
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Thanks Taxi !
I may well try a new sensor, my father in law owns the garage that changed it in Sept so i do trust that it was done however these things can fail quickly.
With regards to the wiring, i wouldn't even attempt to break into the wiring loom, thats asking for trouble, I will look at the schematic wiring diag on a little bit of software that I have - mentioning no names !
Other than that I will buzz out from the sensor plug end and back to main ecu to trace wiring.
Thanks for the advice again.
Cheers
JOnny
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Cam sensor, as we said earlier, and the 0340 proves it ;)
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The sensor should be covered under warranty......and its a piece of piss to change....
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I may well try a new sensor, my father in law owns the garage that changed it in Sept so i do trust that it was done however these things can fail quickly.
Was if definatively the CAM sensor changed last time, not CRANK sensor?
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and its a piece of piss to change....
As long as you dont follow vx's way off doing the job! :y
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Cam sensor.
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Cam sensor.
Oh your still about then AA? ;D Was begginging to wonder as i havent seen a post in a while ::)
Too much golf and afternoon naps i suspect ;D ;)
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Taxi driver is replying....lets see what he thinks...
Its a bit like big brother ;D
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It was def cam sensor changed in Sept 2006, Wifey been out in car today, she said it was playing up again and EML staying on.
I have come home from work and code read the engine P0340, P0700 & P1700 present!
Read the transmission ECU, P0700 & P0748 (Pressure Solonoid) present.
I still believe Gearbox has underlying fault, P0748 ,surely this fault isn't link to cam sensor?
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It was def cam sensor changed in Sept 2006, Wifey been out in car today, she said it was playing up again and EML staying on.
I have come home from work and code read the engine P0340, P0700 & P1700 present!
Read the transmission ECU, P0700 & P0748 (Pressure Solonoid) present.
I still believe Gearbox has underlying fault, P0748 ,surely this fault isn't link to cam sensor?
P0748 is worrying.
The P0340 is cam sensor though. When they did the cam sensor, did they clear the codes from the ECU?
Are the codes 'Present' or 'Not Present' or 'Intermittent'
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I have cleared all of the codes from all of the ecu's.
Gearbox oil pressure sensor was changed in Sept 2005, cost me £300.
Does the P0748 indicate that the box is on its way out?
If so can refurbs be relied upon? and can they be fitted easily?
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Codes are present !
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Right, the cam sensor is an easy fix, so sort that first - it needs doing whatever. Then see what pops up.
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Right, the cam sensor is an easy fix, so sort that first - it needs doing whatever. Then see what pops up.
Agreed :y
Is the autobox playing up then? If not....i wouldnt change it just because of a code popping up....that might go away when you do the cam sensor.
If you still get the autobox code after doing the cam sensor.....check the version of g/b ecu software if you can....version 10 is the latest i believe.....TB will be able to confirm....and get it updated first....this might get rid of the code.
And even if it doesnt i still wouldnt go changing a good working autobox just because of a code :y
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version 10 is the latest i believe
depends on ECU type...
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version 10 is the latest i believe
depends on ECU type...
Oh....are not all 2.2's the same? :-/
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version 10 is the latest i believe
depends on ECU type...
Oh....are not all 2.2's the same? :-/
Not necessarily...
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Had car in at Vauxhall in Nov 06 to have Firmware updated, EML was on then and the technician couldn't clear it!
Also asked them to enable cruise control as my car should be DBW but cruise still won't work, maybe stalk is faulty?
Car does drive okay Taxi, sometimes feels as if gears dont want to change up from 3rd but it does eventually!
Will monitor transmission ecu but wont focus too much on codes until ive sorted cam sensor out.
I now use the Vauxcheck program from WWW.GENDAN.CO.UK I also have the engine check system and ELM327 interface set up on my laptop, works a treat, reads Trans ecu, ABS ecu, Engine ecu and Immobiliser ecu!
Thanks for the help again guys, I will keep u all posted
Jonny
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All the symptoms point to the cam sensor.
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Guys
Meega is now permanatly in Limp mode with EML on.
No P0340 present, but P0748 Pressure Solonoid A is present in Transmission ECU!
I had this changed 2 years ago, does anyone know if this is something that a good mechanic could change rather that a G/Box specialist?
PO700 & P1700 appered on Engine ECU but cleared those.
Once this Solonoid is replaced i will change the Cam sensor again.
Cheers
Jonny
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Not good news :(
Sorry i dont know.
But if your driving it about in limp mode......use the gear selector to get 1st and 2nd...it will put less strain and stop the torque convertor too hot.....it will clunk a bit changing gears but better than trying to pull away in 3rd all time :y
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Thanks Taxi!
I have used that mode of changing gear before, it does klunk but at least it works!
Managed to clear all faults and EML, LMF Vauxhall quoted £260 inc vat for new pressure solonoid.
Have found an Accident damaged 2001 Y reg Omega in breakers, only done 35k miles, have asked for quote for whole gearbox, may be cheaper!
Only thing is, advert says its a 5 speed auto, thought these boxes were 4 speed!
Cheers
Jonny
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Thanks Taxi!
I have used that mode of changing gear before, it does klunk but at least it works!
Managed to clear all faults and EML, LMF Vauxhall quoted £260 inc vat for new pressure solonoid.
Have found an Accident damaged 2001 Y reg Omega in breakers, only done 35k miles, have asked for quote for whole gearbox, may be cheaper!
Only thing is, advert says its a 5 speed auto, thought these boxes were 4 speed!
Cheers
Jonny
Only a few of the very last were 5 speed.
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does that mean that this one should be the same box as mine if its a 2.2 2001 Yreg?
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does that mean that this one should be the same box as mine if its a 2.2 2001 Yreg?
No, yours well be 4 speed - an AR25.
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been quoted £260 + vat for pressure solonoid, thats supplied not fitted!
Managed to source a gearbox, 70k miles £150 + VAT Delivered with 90 day warranty!
May be the easiest option to put in a lower mileage box?
Any ideas on fitting time 4 + hours ?
Cheers
Jonny