Omega Owners Forum
Omega Help Area => Omega General Help => Topic started by: Migalot on 22 July 2016, 12:25:06
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As per the post title, how do I access this sensor?
Thanks in advance.
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Its intergrated into the throttlebody unlike the earlier 2.5
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As per the post title, how do I access this sensor?
Thanks in advance.
There are two... one is built into the throttle motor, tother is built into the accelerator pedal :y
Your issue is most likely that the retaining clips on the throttlebody plug are worn/damaged/missing allowing an intermittent poor contact... easily fixed with judicious application of cable ties :y
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Thanks..I think! :-\
My problem is that the car has an issue (and has had one intermittently) with the autobox. If I have keep the throttle pressed lightly (say, in medium traffic) and then accelerate quite lightly the revs will rise sharply and the autobox will not change up ...then it does with a donkey-kick and the limp-home light comes on. If I turn everything off and wait 30seconds, the engine is re-set normally. In contrast, if I start from nothing and accelerate hard, the autobox will change up no problem.
It COULD be the autobox or its ECU but, it COULD be one of the throttle sensors. I bought an aftermarket one (like the old ones on the 2.5), but can't figure out where it goes. I can see the throttle body on the car with a sliver clip on top. If I remove that, will I see the standard 3-pin sensor behind it?
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Firstly return that new sensor for a refund... it is of no use whatsoever on the later dbw v6s.
Secondly, check gearbox level as per the guide and top up as necessary.
DO NOTHING ELSE UNTIL THESE TWO THINGS ARE DONE
Then report back. :y
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OK. Will do. :y
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I'm getting a bit too advanced to go crawling under the car, so I just called Halfords Autocentre to ask if they could check my autobox oil and they said it was a main dealer only job. ::) ::) >:(
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Well you had a lucky escape there.. maybe take it to somewhere that isn't staffed entirely by gibbons :y
Perhaps Serek in Huntingdon? Or a local member in your neck of the woods..
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If anything goes wrong with any of the DBW system components, it'll go into limp home mode (giving you about 1500 RPM) and raise some fault codes. This issue sounds like a problem with the gearbox to me.
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My local garage did mine no problem :y
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If anything goes wrong with any of the DBW system components, it'll go into limp home mode (giving you about 1500 RPM) and raise some fault codes. This issue sounds like a problem with the gearbox to me.
If that's the case, then it will have to be goodbye Omega (shame, having owned Omegas for the last 10 years).
Even though it's relatively low mileage, it's only worth about two bob and a bag of marbles... :'(
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If anything goes wrong with any of the DBW system components, it'll go into limp home mode (giving you about 1500 RPM) and raise some fault codes. This issue sounds like a problem with the gearbox to me.
If that's the case, then it will have to be goodbye Omega (shame, having owned Omegas for the last 10 years).
Even though it's relatively low mileage, it's only worth about two bob and a bag of marbles... :'(
Gearbox ATF level check is a very simple job with the vehicle on stands or even simpler on a ramp. Any local garage should be able to do it, but make sure they know the proper way. (See guide). :y
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Also reasonably easy without the car even jacked up if your a skinny bastid like I
am used to be. :D
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Firstly return that new sensor for a refund... it is of no use whatsoever on the later dbw v6s.
Secondly, check gearbox level as per the guide and top up as necessary.
DO NOTHING ELSE UNTIL THESE TWO THINGS ARE DONE
Then report back. :y
Found a local garage that was happy to check the level for me. It took just over 1 litre of Dexron and all seems well at the moment. Although I haven't driven it far, the changes already seem smoother so maybe it was just a case of low fluid.
Thanks for the advice! :y :y
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Damn it! I spoke too soon.
The problem came back again this evening. I think I may have to start looking at the throttle position sensor — maybe pick up a cheapo one on eBay.
That would be the last of my attempts to fix it. If it's the gearbox itself, then I may have to just bite the bullet and get a newer car. :( :'(
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Thanks..I think! :-\
My problem is that the car has an issue (and has had one intermittently) with the autobox. If I have keep the throttle pressed lightly (say, in medium traffic) and then accelerate quite lightly the revs will rise sharply and the autobox will not change up ...then it does with a donkey-kick and the limp-home light comes on. If I turn everything off and wait 30seconds, the engine is re-set normally. In contrast, if I start from nothing and accelerate hard, the autobox will change up no problem.
It COULD be the autobox or its ECU but, it COULD be one of the throttle sensors. I bought an aftermarket one (like the old ones on the 2.5), but can't figure out where it goes. I can see the throttle body on the car with a sliver clip on top. If I remove that, will I see the standard 3-pin sensor behind it?
Did you look for codes :-\
http://www.omegaowners.com/forum/index.php?topic=90581.0
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Thanks..I think! :-\
My problem is that the car has an issue (and has had one intermittently) with the autobox. If I have keep the throttle pressed lightly (say, in medium traffic) and then accelerate quite lightly the revs will rise sharply and the autobox will not change up ...then it does with a donkey-kick and the limp-home light comes on. If I turn everything off and wait 30seconds, the engine is re-set normally. In contrast, if I start from nothing and accelerate hard, the autobox will change up no problem.
It COULD be the autobox or its ECU but, it COULD be one of the throttle sensors. I bought an aftermarket one (like the old ones on the 2.5), but can't figure out where it goes. I can see the throttle body on the car with a sliver clip on top. If I remove that, will I see the standard 3-pin sensor behind it?
Did you look for codes :-\
http://www.omegaowners.com/forum/index.php?topic=90581.0
Not yet. Haven't had any spare time. :(
I may have a moment tomorrow. Will report back!
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Carried out the pedal trick and got 0500 & 1700:
P0500 Vehicle speed sensor malfunctionB-009
P1700 Service Vehicle Soon Request from Transmission Control Module
What do I do now? Help! ???
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Can anyone let me know the part number for the automatic gearbox speed sensor for my 2002 2.6 V6?
Easy to fit? ???
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The codes you have a re from the engine ECU. They indicate a problem in the automatic gearbox ECU, but you can't read that with a pedal trick. I would get the car to someone with a Tech 2 or something that can read gearbox codes.
The engine ECU's Vehicle Speed Sensor input comes from the ABS ECU via the CAN bus, for example, so this doesn't point to a specific sensor failure. Find out what the gearbox ECU is complaining about and you'll know more.
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The codes you have a re from the engine ECU. They indicate a problem in the automatic gearbox ECU, but you can't read that with a pedal trick. I would get the car to someone with a Tech 2 or something that can read gearbox codes.
The engine ECU's Vehicle Speed Sensor input comes from the ABS ECU via the CAN bus, for example, so this doesn't point to a specific sensor failure. Find out what the gearbox ECU is complaining about and you'll know more.
Yes, but a speed sensor fault would be a likely candidate, wouldn't it? I don't know of anyone local with a Tech2 and it would cost a shed-load to get a Vx agent to read the codes.
If I can locate a speed sensor for less than £50, I'm prepared to take a punt on that being at fault.
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No, I wouldn't say it's likely to be a speed sensor fault. The engine ECU is complaining that the gearbox ECU has raised a fault. Without reading the gearbox ECU we don't know why that is.
The engine ECU is also complaining about a speed sensor issue. The engine ECU doesn't have a speed sensor, since it gets that information via the CAN bus from the ABS ECU, which has a speed sensor on each wheel.
I would put money on that being a spurious error that has arisen because the gearbox ECU is upset and that also communicates on the same CAN bus.
The symptoms seem to be that the gearbox is misbehaving, so I'd bet on the gearbox ECU having other fault codes raised, which will tell us what the problem is.
Purchasing anything at this stage will be a waste of money. If I were going to spend anything I'd get a local garage to read the gearbox ECU fault codes.
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No, I wouldn't say it's likely to be a speed sensor fault. The engine ECU is complaining that the gearbox ECU has raised a fault. Without reading the gearbox ECU we don't know why that is.
The engine ECU is also complaining about a speed sensor issue. The engine ECU doesn't have a speed sensor, since it gets that information via the CAN bus from the ABS ECU, which has a speed sensor on each wheel.
I would put money on that being a spurious error that has arisen because the gearbox ECU is upset and that also communicates on the same CAN bus.
The symptoms seem to be that the gearbox is misbehaving, so I'd bet on the gearbox ECU having other fault codes raised, which will tell us what the problem is.
Purchasing anything at this stage will be a waste of money. If I were going to spend anything I'd get a local garage to read the gearbox ECU fault codes.
OK, Kevin.
I've found someone local to get the codes read for £35, so I may pop there on Thursday. I'll report back. :y
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Had he codes read and it looks like the gearbox is fubared. :(
P0730 Incorrect Gear Ratio
P1625-002 Controller voltage switch signal too low
The car still runs OK as the fault is intermittent, but I am now actively looking to see how I can finance a new set of wheels.
Shame, really — especially as it has only done 59k from new. :'(
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That looks like an electrical issue with the pressure control solenoid. If you're lucky and it hasn't slipped too much while driving, you might find the gearbox is OK.
First thing to do is to check the large round connectors behind the battery are all seated properly. Have a look at the wiring down to the automatic gearbox too, especially into the connector to the front casing of the gearbox. Look for any damage to the wiring or loose connectors. Failing that, drop the front sump on the gearbox and check the wiring inside the box.
The solenoid appears between pin 52 and 5 of the gearbox ECU and, if you pull off the connector and measure resistance here into the wiring loom, you should see 3.5-6.0 Ohms.
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Had he codes read and it looks like the gearbox is fubared. :(
P0730 Incorrect Gear Ratio
P1625-002 Controller voltage switch signal too low
The car still runs OK as the fault is intermittent, but I am now actively looking to see how I can finance a new set of wheels.
Shame, really — especially as it has only done 59k from new. :'(
I had that code on the AR25 it was put down to the 2-3 solenoid in the box
Your symptons are the same as this member too
http://www.omegaowners.com/forum/index.php?topic=135356.msg1738682#msg1738682
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That looks like an electrical issue with the pressure control solenoid. If you're lucky and it hasn't slipped too much while driving, you might find the gearbox is OK.
First thing to do is to check the large round connectors behind the battery are all seated properly. Have a look at the wiring down to the automatic gearbox too, especially into the connector to the front casing of the gearbox. Look for any damage to the wiring or loose connectors. Failing that, drop the front sump on the gearbox and check the wiring inside the box.
The solenoid appears between pin 52 and 5 of the gearbox ECU and, if you pull off the connector and measure resistance here into the wiring loom, you should see 3.5-6.0 Ohms.
Thanks, Kevin. I'll check the battery connectors. :y
The fault first appeared about four years ago and would come back intermittently with intervals of up to three/six months. It's only recently that it has been happening a bit more often. That said, on the way back from the garage today, the box behaved normally.