Omega Owners Forum - auto gearbox fault code help

mike9570 Junior Member Offline Posts: 54 warrington Gender: Drives: 2.2 cd auto 2001	auto gearbox fault code help 08. May 2011 at 21:42 can anybody help me with the code which iam getting on the autobox. p1781 the car is a 2.2 on a 2001 plate. slipping in 1st and 2nd when taking of from stand still , new atf & filter done also new select switch.
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TheBoy Administrator Offline TBE has an MOT! Posts: 64817 Brackley, Northants Gender: Drives: 98 MV6, 03 Elite, 00 25, 89 ZX10	Re: auto gearbox fault code help Reply #1 - 08. May 2011 at 21:45 Any codes in the engine or ABS unit?
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mike9570 Junior Member Offline Posts: 54 warrington Gender: Drives: 2.2 cd auto 2001	Re: auto gearbox fault code help Reply #2 - 08. May 2011 at 21:47 getting engine codes Total number of fault codes: 3 P0100 - Mass Or Volume Air Flow Circuit Low Input (02) - Present P1700 - SVS request via CAN (00) - Present P1650 - Service Vehicle Soon Light Voltage Low (04) - Not present
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mike9570

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Re: auto gearbox fault code help
Reply #3 - 08. May 2011 at 21:51

transmission
OP-COM - KW2000 Communication Window> 2001 (1)|Omega-B|Transmission|AR 25/35

Keyword #1: 6B
Keyword #2: 8F

Normal timing parameter set.

vehicleManufacturerECUHardwareNumber 96024111
systemSupplierECUSoftwareNumber: HZ 55 60
systemNameOrEngineType: GS821 Z22XE
CalibrationDate: 01

Identifier: 0511

systemSupplierECUSoftwareVersionNumber: 000A
exhaustRegulationOrTypeApprovalNumber: Not programmed
VehicleManufacturerSpecific: 0260002766
VehicleManufacturerSpecific: 1030040170
VIN: W0L0VBM6911119152
RepairShopCodeOrTesterSerialNumber: S001007873
ProgrammingDate: 20031209
systemSupplierECUHardwareNumber: BOS 0205000002
CalibrationEquipmentSoftwareNumber: 96024110 AR

Total number of fault codes: 1

P1781 - <Unknown DTC>
(00) - Present

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TheBoy Administrator Offline TBE has an MOT! Posts: 64817 Brackley, Northants Gender: Drives: 98 MV6, 03 Elite, 00 25, 89 ZX10	Re: auto gearbox fault code help Reply #4 - 08. May 2011 at 21:59 OK, it clearly says look at the MAF circuit.
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mike9570 Junior Member Offline Posts: 54 warrington Gender: Drives: 2.2 cd auto 2001	Re: auto gearbox fault code help Reply #5 - 08. May 2011 at 22:25 so how does a maf fault log a transmission code ?
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TheBoy

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Re: auto gearbox fault code help
Reply #6 - 08. May 2011 at 22:30

mike9570 wrote on 08. May 2011 at 22:25:

so how does a maf fault log a transmission code ?

Engine, gearbox and ABS are all constantly nattering to each other. Bit like a ladiy's coffee morning, if you like Grin

The gearbox code signifies that its received rubbish, which is quite normal when one of the other 'coffee morning' attendees is busy more interested in error routines due to duff sensor info.

Fix the obvious fault, clear them, see what comes back Wink

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mike9570 Junior Member Offline Posts: 54 warrington Gender: Drives: 2.2 cd auto 2001	Re: auto gearbox fault code help Reply #7 - 08. May 2011 at 22:32 ok cheers will try that.
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Jimac Junior Member Offline Posts: 71 Newcastle upon Tyne Gender: Drives: 2003 Omega 2.2 CD Petrol Auto	Re: auto gearbox fault code help Reply #8 - 09. May 2011 at 12:31 Just to illustrate further, I get occassional cam sensor codes (P0340) and whenever I get one I also usually get P1781 as well. I'm pretty sure the latter is caused by the former. (And I must get round to replacing the cam sensor. I've just PM'd andyc for a price). Jim.
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mike9570 Junior Member Offline Posts: 54 warrington Gender: Drives: 2.2 cd auto 2001	Re: auto gearbox fault code help Reply #9 - 09. May 2011 at 12:38 just paid for a new maf meter , will recheck codes again when fitted and go from there. i am more concerned about 1st and 2nd slipping having to pull off in snow mode now ,don't like the idea of replacing the gearbox .
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TheBoy

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Re: auto gearbox fault code help
Reply #10 - 09. May 2011 at 19:02

mike9570 wrote on 09. May 2011 at 12:38:

just paid for a new maf meter , will recheck codes again when fitted and go from there.
i am more concerned about 1st and 2nd slipping having to pull off in snow mode now ,don't like the idea of replacing the gearbox .

How did you prove it was the MAF Wink

Don't believe what the computer says is true - thats the mistake dealers make Grin

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mike9570

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Re: auto gearbox fault code help
Reply #11 - 10. May 2011 at 16:42

TheBoy wrote on 09. May 2011 at 19:02:

mike9570 wrote on 09. May 2011 at 12:38:

just paid for a new maf meter , will recheck codes again when fitted and go from there.
i am more concerned about 1st and 2nd slipping having to pull off in snow mode now ,don't like the idea of replacing the gearbox .

How did you prove it was the MAF Wink

Don't believe what the computer says is true - thats the mistake dealers make Grin

i just unpluged it and no diff in engine note, fitted new maf and fault light gone out. still need to work out the 1st and 2nd gear when pulling off.

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mike9570 Junior Member Offline Posts: 54 warrington Gender: Drives: 2.2 cd auto 2001	Re: auto gearbox fault code help Reply #12 - 12. May 2011 at 21:24 will a 2.5 v6 box fit both ar25
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erubus Junior Member Offline Posts: 149 blairgowrie Drives: omega 2.0 cdx and landrover series III	Re: auto gearbox fault code help Reply #13 - 13. May 2011 at 17:12 the autobox on my old omega slipped in 1st and 2nd. it turned out to be the forward clutch. evntually i got no orward gears at all after having to use the snow mode to start off for a couple of months.
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hercules

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Re: auto gearbox fault code help
Reply #14 - 13. May 2011 at 20:07

the story of my 2.2 when i had it,bought it with car in limp mode and could only set off in snow mode when cold but had reverse.checked levels and all the usual diagnostics eventually went to an autobox garage and told box is knackered(p0100 constantly coming up)sourced 2nd hand box and i had every gear but could only use them if i drove it manually,cleaned switch and checked all electricasl connections but still showing p0100 among a couple more,i eventually looked into the maf and found a site saying what it did and in an automatic gearbox it helps to tell the box when to change gear so new maf and hey presto one lovely smooth auto box.it works out the previous owner carried on driving it in limp mode and knackered the box and tbh it sounds to me like you need a new box but if any consolation there a piece of pi@@ to fit

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