Please login or register.
1 Hour 1 Day 1 Week 1 Month Forever
Login with username, password and session length

This section allows you to view all posts made by this member. Note that you can only see posts made in areas you currently have access to.

1

Omega General Help / Re: Fuel vent valve fault

« on: 04 June 2007, 09:51:17 »

I stripped down the purge valve yesterday, underneath the cable strip, cleaned it out with carb cleaner and WD40, checked that the pipes were all clean and that the connector pipe at the bottom of the plenum chamber was clean. refiited and still had the same problem. Even stopped and restarted the engine 35 times (35 clean starts) and also d/c the battery for 2 hours. Guess what? No change!

Anyone know where I can buy, beg, borrow or steal a spare vent valve to see if the problem is that or in the wiring?

The only reference that I have got is that the fuel tank vent valve is showing a fault, don't know if it is open or close circuit.

Am away for a few days now (Glasgow) probably won't be back til Saturday.

Cheers

Andi

2

Omega General Help / Re: Fuel vent valve fault

« on: 03 June 2007, 11:58:30 »

Rpont,

Just re-read your message and now understand what you mean. The purge valve is the twiddly bit sat on the camshaft side. Is this the same as a fuel tank vent valve? I can find no reference to the vent valve in either Haynes or on the net. Very helpful as my car is adamant the vent valve is knackered!

Cheers

Andi

3

Omega General Help / Re: Fuel vent valve fault

« on: 03 June 2007, 11:55:39 »

Hi all,

sorry, have been so damned busy with work, not had two minutes to myself!

Thanks for all the comments and ideas - will be looking into it a bit further today. I have found what looks like either a relay or a small solenoid on the side of the camshaft housing that is hidden under a plastic wiring housing. As you look at the car, it is to the left and very well hidden, it has what looks like a couple of pipes going in and a wiring connector underneath - you know, in one of those "you can see it but damned if you can get to it" positions that Vauxhall loving dealing us with!

Had a look in the Haynes manual as requested and am scratching my head about which one it is - I think it is very similar to the Carlton engine (my last car!) - and I agree it could do with a bit more power. It has so many problems, compounded by the fact that the garage I had service it seemed to make matters worse!

It has a tendancy of trying to drive as if "the choke is on" on petrol when it is warm / hot - it coughs, splutters, and generally gets the arse. After 15-20 mins of driving the power comes back and it starts idling evenly. It is strange - never seen this fault before and pretty much always had Vauxhalls.  Only does that on petrol by the way - gas is perfect!

Will update you as I find out more bits

By the way hello fellow Loughboroughian!

Cheers


Andi

4

Omega General Help / Re: Fuel vent valve fault

« on: 01 June 2007, 08:35:29 »

Hi all,

Sorry not had chance to get under the bonnet yet - bloomin' work has gone mad!

Anyway intend to take a look at the weekend - should get some time then.

Also, just invested in a Haynes manual - absolutely no reference to it in their, however the Tech-2 is adamant there is a problem with it!

Love Vauxhall - they always hide these innocuous little bits then tell you they are faulty!

Will keep you updated with the score on this one - espcially if I can find it...

Cheers

5

Omega General Help / Fuel vent valve fault

« on: 29 May 2007, 17:17:03 »

Hi All,

First post on here, so hi everyone.

Ok, niceties over and done with, I wonder if anyone could help please?

I have (for my sins) an old (N reg) 8v 2.0 petrol Omega, manual, 188,000 miles on the clock with LPG conversion on it. I bought it with the conversion and had it serviced, lpg service, new timing belt, water pump, tyres (bloody thing has cost me a fortune).

Not a bad car, but the EMS light is on all the time and I have had it checked with the paperclip test and also a Tech-2, both of which show that the fault is in the "Fuel vent valve".

Question - where the hell is it? I had heard it was accessible from the inspection plate in the boot, so have (just) duly taken out LPG gas tank (carfully I might add) as it was totally obscuring the inspection plate. All I find is a plug that feeds into the petrol tank and I am guessing that this is the reader for the fuel guage. Anyway, gave it a blast with WD-40 just in case.

Have checked all over and found that a couple of references point to somewhere under the bonnet - also a possible fuse fault or feed problem. I am tearing my hair out as it is coming up to MOT time and it will fail with the EMS light on. Yes, I know I can take the bulb out, but that only hides the fault, it doesn't fix it.

If anyone can help, I would appreciate it.  meantime, I have a car in pieces ith the LPG gas tank kind of hanging out the boot - not a good look!

Cheers


Andi