Omega Owners Forum
Omega Help Area => Omega General Help => Topic started by: jamescdxv6 on 13 November 2011, 17:56:20
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hi was just hoping someone could help with my query .
i have a 2001 omega 2.6 v6 cdx and about 5 months ago my eml came on had the aa look at it and they were no help but told me that i would still be able to drive it. taking this advice i did so the car drove fine up untill about a month ago when it would start first thing in the morning and i would go out as soon as i came back to the car it would not start , i would then go away for about five mins and come back and it would start again. now it doesnt start atall so got someone to put the diagnostic on it and codes 072 and 073 came on got some advice that this was the o2 sensors so replaced them, have also replaced the spark plugs and gasket seals but car still wont start .
hope someone can help with this i am complete novice with this stuff but refuse to pay a garage to do it so hoping to do it myself
any help would be apreciated
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I reckon crank sensor
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thanks
is this an exspensive part and easy enough to fit
sorry really dont have a clue lol
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hi was just hoping someone could help with my query .
i have a 2001 omega 2.6 v6 cdx and about 5 months ago my eml came on had the aa look at it and they were no help but told me that i would still be able to drive it. taking this advice i did so the car drove fine up untill about a month ago when it would start first thing in the morning and i would go out as soon as i came back to the car it would not start , i would then go away for about five mins and come back and it would start again. now it doesnt start atall so got someone to put the diagnostic on it and codes 072 and 073 came on got some advice that this was the o2 sensors so replaced them, have also replaced the spark plugs and gasket seals but car still wont start .
hope someone can help with this i am complete novice with this stuff but refuse to pay a garage to do it so hoping to do it myself
any help would be apreciated
4-digit code only on a 2.6. Do the "pedal trick" and post the codes up. As Martin says, probably crank sensor (0335)
http://www.omegaowners.com/forum/index.php?topic=90581.0
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This is going to get flaming confusing ...
New member .. jamescdxv6
Established member .... JamesV6CDX
I'll never get the right one !!!!!
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sorry ment to say it says fuel trim bank 1 and fuel trim bank 2 next to these codes
thanks
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sorry mate just the first thing that came into my head lol
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Pedal trick as in my link ;)
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how u do that
as i say sorry complete novice
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seen link thanks for that
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Post up the code :y
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0170 and 0173 are the codes also says fuel trim bank 1 and fuel trim bank 2 next to these codes
thanks
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Next step, it needs somebody to monitor the live data.
It could be MAF, or it could be air/vac leaks (more likely)
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thanks
will try and get some one to do this but can i check for leaks myself even though the car wont start
and do u need the car running for live data as it isnt starting .
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Whilst it could be a crank sensor failure, if the trims are way off, that may prevent starting...
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Actually, thinking about it, when the car is open loop, would it use the Long Term Trims?
:-\
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This is going to get flaming confusing ...
New member .. jamescdxv6
Established member .... JamesV6CDX
I'll never get the right one !!!!!
Just what I was thinking! :o :o :o
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this might sound pretty silly
but i am a novice lol
so how do u replace the trims
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this might sound pretty silly
but i am a novice lol
so how do u replace the trims
You dont - they are an internal calculation made by the ecu depending on other sensor readings...
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any idea on what would solve the trim problem
thanks
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any idea on what would solve the trim problem
thanks
Fixing the air leaks would be the first thing to start with ;)
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i take it that would be just checking all pipes over
and can u do this without car running
thanks :y
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One way of finding air leaks is to spray LIGHTLY with carb cleaner whilst the engine is running, spray lightly along vac pipes, plenum base, generally all around the engine..... but in a controlled manner .. don't just swamp the compartment..... when the engine note changes it means some vac cleaner has been sucked in and burned as unmetered fuel, hence the change in engine note.
Closer examination of that area will eventually pinpoint the leak. Fix the leak, wipe the engine down with papertowel .. Voila .. fixed problem and a nice clean engine
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thanks for that
only problem is my car wont start
is there any other way
thanks
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just been told that the fuel pump and fuel filter could be the reason for car
not starting
would this not come up as a fault with a code
any ideas
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just read an ad on fuel pump symptems of failure or on its way out
says engine misfire
starting intermitiadly
not starting
mine has done exactly this in that order
was misfiring so changed spark plugs
did start now and again
and now doesnt start lol
u think this is just a coincadence
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Still think crank sensor as the pulses drive the fuel pump.
Also one of the few thigs which will stop it even trying to start.
Do the pedal trick
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ok will do
thanks for that :y
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Check for spark & fuel when cranking the engine. No fuel and spark invariably equals failed crank sensor
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how do u check for this mate
again not that clever when it comes to that stuff
cheers :y
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One way of finding air leaks is to spray LIGHTLY with carb cleaner whilst the engine is running, spray lightly along vac pipes, plenum base, generally all around the engine..... but in a controlled manner .. don't just swamp the compartment..... when the engine note changes it means some vac cleaner has been sucked in and burned as unmetered fuel, hence the change in engine note.
Closer examination of that area will eventually pinpoint the leak. Fix the leak, wipe the engine down with papertowel .. Voila .. fixed problem and a nice clean engine
Bit difficult that - ops car won't start ???
Someone suggested MAF maybe - just unplug it and try again - if it starts then dodgy maf. to find maf follow trunking down from air filter front drivers side - its the first plug you come to.
Agree probably crank sensor - its around £50 from Vx on TC - easy to replace - believe there's a howto :y
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pulled out maf semsor d plugged back in still wont start
stuck between changing fuel pump ad fuel filter or crank shaft sensor first
thanks :y
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bloody battery now dead aswell
so cant do pedal trick arhhhhhhhhhhhhh
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RIGHT
before doing anything else, read the codes. Pissing around like this has stored more codes, masking, potentially, the real fault.
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going to get battery charged in morning and do the pedal trick
and take it from there
will post codes on and hopefully someone can help
thanks all
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got fault code only code comming up is 1530
got car started but alot of white smoke comiing out is that just because it has been lying for about 6 weeks and not starting
thanks
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P1530 is an AC relay issue so not likely to be related
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well did getcar started earlier let it run for about 2 or 3 hours was driving great got back turned it off came back out 5 mins later not starting again arhhhhhhhhhhhhhh
just done pedal trick and it now reads 2 codes the 1530 as it did earlier now has 0335 aswell
and still wont start
any help apreciated
thanks :y
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0335 = Crank sensor .... the one item that stops the V6 dead ... easy enough to change ..
http://www.omegaowners.com/forum/index.php?topic=90540.0
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well i geuss you guys are defaatly worth asking as you were right
just read code 0335 is cranshaft sensor position a circuit malfunction
now a do take it that means its gubbed and needs replaced the only other thing is there more than 1 of these crankshaft sensors
just wondering as it says position a
cheers
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There is only one crank sensor on the omega V6 .. the OBDII list of codes is standardised for all vehicles and some have more than one.
As you are DBW with the 2.6 there is (I believe) only 1 CS that fits so a dealer will have no problem supplying the right part.
Genuine VX only .. no pattern parts or you'll be changing it again next month. Follow the guide and re-route the cable as instructed.
Takes less than 30 minute and only tools needed are a torx driver, snips and cable ties.
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2.6/3.0/3.2 90540743 around £50 on TC
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whats tc mate sorry not up with the lingo yet lol
thanks for the help rob
was going to buy a fuel filter till u said just do pedal trick
so cheers mate :y
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whats tc mate sorry not up with the lingo yet lol
.............
http://www.omegaowners.com/forum/index.php?topic=90491.0
;) ;) ;)
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cheers andy :y
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0335 = Crank sensor .... the one item that stops the V6 dead ... easy enough to change ..
http://www.omegaowners.com/forum/index.php?topic=90540.0
That is what I said second post ;D ;D
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i know mate
cheers :y
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just picked up new cranksensor from vx dealer
got home opened box and i have a very funny feeling that its the wrong one
may be completely wrong but looking at the instructions on howto fit a crank sensor
it says to run the wire
there is a very short lead on the new sensor probably the size of a hand
any ideas
part number on the box is gm 9118140
would this be the right part for my omega
thanks
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According to my reading of the EPC .. the cranksensor you need for the 2.6 - Y26SE engine - is 90540743
Now I've just been out and checked my spare.. same sensor for the 3.2 engine and it has that number on it. I have had the sensor 3 1/2 years in its box however !!
9118140 is coming up as a CAM shaft sensor for various engines
- including the omega 2.6/3.2 .... looks like you have a CAM sensor not a CRANK sensor
:(
Warning .. I'm not an expert on the EPC and might be wrong .. but on this occasion I feel fairly confident !!
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how incompatant are vx dealers
just phoned them to say what u just told me and guess what
thay ordered a bloody cam shaft sensor now how frigging hard is it to order the proper part
not as if there was a big cue of people waiting to be served it was only me.
now got to wait till tuesday to get the proper part
sorry rant over lol
thanks for pointing that out though
would have been waiting longer if i had waited till later till my mechanic tried to fit it
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also ment to ask is it harder to fit a crankshaft sensor
when you have air con some one said you cant get to it from underneath if u have aircon
cheers
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Aircon makes no difference.Providing you have the correct torx socket and you have already located the connector at the top where it plugs into (can be a bit hard to find first time) its a 10 minute job, if you follow the guide.
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thanks albs
think some people dont like you doing it yourself
was a local garauge mechanic who said it would be harder
if you had aircon
cheers :y
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thanks albs
think some people dont like you doing it yourself
was a local garauge mechanic who said it would be harder
if you had aircon
cheers :y
That is the 4 cylinder model
It is not a bad job.
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hi all
hopefully get my part today that is if vx
have done there job properly this time lol
should have it fitted tonight
will let everone know if it has sorted my problem
thanks all
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it will do :y :y
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hi all
vx mucked up again
now been over a week waiting for a part that was supposed to come in twodays
hopefully will have it today
but not holiding my breath on that
thanks
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Contact AndyC. He may well be able to post one first class today. :y
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Contact AndyC. He may well be able to post one first class today. :y
Then tell your local dealer to use the one they have as a suppository. ;) ;D
I seem to keep clicking quote instead of modify for some reason. :-[ ::)
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thanks albs
got part finally today
going to get it fitted tonight
have told vx dealer that i will never use them again oppsing idiots
excuse the french
will let u all know how it goes
cheers
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just a quick one
to let everyone know changed crankshaft sensor and car running great
now i have exhaust emissions light on doesnt seem to be affecting the riving
any ideas guys
thanks
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You need to do a "pedal trick" and let us know what codes are present in the engine ECU. :y
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will do mate
cheers :y
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hi all
just done the pedal tric again have a few codes now
0300, 0304, 0306,
these seem to relate to the same thing as in cylender 4 and 6 misfire detected
and general misfire detected.
then i have the 0173 and 0170 still on there relating to fuel trim malfunction on bank 1 and bank 2
still have the 0335 for crankshaft but i havnt had ay codes cleared since replacing
and finally the 1530 for the ac relay
now i have replaced the spark plugs and the gasket seals as one had burst and oil leaked into the 2,4,6 spark plugs and coil pack havnt changed coil pack do u think this should be next thing to be done
any help much aprecated.
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could the fuel trim stuff be anything to do with there being air getting out from a hole inthe exhaust or something like that
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could the fuel trim stuff be anything to do with there being air getting out from a hole inthe exhaust or something like that
I have the same codes on mine for fuel trim, I've fitted a cheap MAF (Mass Air Flow meter) to mine and it cures the codes and puts the light out, but then it comes back on a couple of weeks later. I don't know if a genuine MAF will cure the problem, I'm a bit hesitant to fork out over £100 when my car runs ok and passes MOT emissions with the cheap one on :-\
You can find MAF's on ebay for about £30 if you want to try it
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could the fuel trim stuff be anything to do with there being air getting out from a hole inthe exhaust or something like that
If you have a leak in the front of the exhaust system (manifolds / downpipes) then that could cause a fuel trim problem but it would be unlikely to do so for both banks. In this case, with a fuel trim problem on both banks, looking at the live data with a Tech2 or similar would help diagnosis, but it will typically be something like the MAF, which affects both banks.
As jonnycool has eluded to, cheap MAFs can be a false economy.
I would say more diagnosis required before you go changing parts. Can you get access to a code reader that can do live data? Would be good to see the fuel trim values and the MAF sensor output. Check for any air leaks into the induction system, splits in the ducting, etc., though.
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dont know if it will be possible to get hold of tech 2 but will certainly ask about
but will check for le
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will ask about to see if i can sourse one butwill check or any leaks first
think i remember someone saying if you have engine running u can spray something on pipes and will show leaks
need to have a look back
what about misfires i think i will prob have to change coil packs .
thanks :y
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also just a quick one
the engine temp seems to be taking a while to get to where it should be
when first started it probably takes about a half hour before it even lifts from zero
thanks
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also just a quick one
the engine temp seems to be taking a while to get to where it should be
when first started it probably takes about a half hour before it even lifts from zero
thanks
thermostat would be my first guess. :y
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cheers :y
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Yep, sounds like thermostat failure. Might be worth fixing this and seeing how it goes, as if this fault has persisted for a while and it's been running around cold, it might have affected fuel trims.
Easy way to tell a failed thermostat is to start the engine from cold and see if the radiator top hose starts getting warm. It should stay cold until the engine gets to 80+ degrees indicated on the gauge and then suddenly get very hot. If it warms up with the engine, thermostat has had it.
If it seems OK, let it warm up until the fans come on. At this point the gauge should be reading over 90 degrees. If not. The gauge sensor may be disconnected or faulty.
Kevin
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cheers kevin
will give this a go in morning
thanks :y