Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: Malt_Whiskey on 12 April 2020, 19:56:17

Title: P0700 fault code (Gearbox)
Post by: Malt_Whiskey on 12 April 2020, 19:56:17
Hi all

Looking for some advice/help I have a 2002 2.2CD Auto Saloon which I have owned since August 2003. The engine management light is on and the fault code is P0700 which I understand to be a general gearbox fault code. The gearbox 99.9% of the time is fine but every now and again, only when started, goes into limp mode. If I switch the ignition of and restart it’s fine but the code will not clear, so at present only using for local journeys. Looking for possible causes and remedies.

Thanks

Title: Re: P0700 fault code (Gearbox)
Post by: Doctor Gollum on 12 April 2020, 20:26:35
Replace the cam sensor with a genuine one from a genuine Vauxhall dealer that you genuinely have to walk in to... *

* obviously once they reopen...
Title: Re: P0700 fault code (Gearbox)
Post by: Enceladus on 13 April 2020, 02:26:33
The GM Vauxhall part number for the 2.2 16v cam position sensor is 90520850.

This sensor was widely used on contemporary Astras, so you might strike lucky with a dealer that has old stock but it might well be that it's a special order from Germany. Expect seven working days to deliver, payment up-front and no returns. That's assuming you can find a dealer that still has a parts department, knows what a special order is and is willing to place it.

It won't be cheap. £100 wouldn't surprise me.

The GM part is a standard Siemens part and both the Siemens and GM originals are marked 5WK96052. So if you luck out with the dealer try and get a genuine Siemens part. IE not a Siemens equivalent. Parts supplied by Continental and branded VDO are likely to be the genuine Siemens.
Title: Re: P0700 fault code (Gearbox)
Post by: TheBoy on 13 April 2020, 09:10:50
Worth reading the gearbox codes, before spending money on parts, as it may be a genuine gearbox fault, of which there are a few common ones with easy fixes.