Location of turbo boost sensor

[remetiffy]

Hi

After reading a post by sailorhms I think I need to check out the above sensor. I am not sure where it is located and would like someone to point me in the right direction, preferably with a picture. Thanks.

[Mike Noc]

Assuming you have a diesel, the boost pressure sensor is fitted to the inlet manifold on the off side of the car.

It is the only sensor attached to the plastic manifold itself.

Easier to see once the acoustic panel has been removed.

[Arctic]

Assuming you have a diesel, the boost pressure sensor is fitted to the inlet manifold on the off side of the car.

It is the only sensor attached to the plastic manifold itself.

Easier to see once the acoustic panel has been removed.

Mike is spot on it can be removed just about without taking the manifold off, it may need cleaning if so do it with some carb cleaner do not spray direct into the hole, or poke any wire etc into it which can damge it, a good wipe clean after spraying should do the job
http://i59.tinypic.com/iylapi.jpg


http://i62.tinypic.com/4orif.jpg

http://i59.tinypic.com/xql3zk.jpg

[Mike Noc]

Great pics as usual Steve. :bowdown:

[remetiffy]

Thanks for that guys. I am using the info found in this historic thread, http://www.the75andztclub.co.uk/forum/showthread.php?t=60535
I believe I have a similar problem.

My 2.0L diesel has an intermittent fault where the engine randomly cuts out whilst driving. I can drive for 30 miles trouble free then it can cut out 3 time in a mile. I flick the ignition to the first position and back and the engine starts again.
I found this thread in another place but the pictures are missing.
http://forums.mg-rover.org/showthread.php?t=382336
I am hoping this will solve my problem.

[Mike Noc]

Have you carried out an injector leak back test?

[remetiffy]

I've not thought of that, is it easy to do and would I need any special equipment?

One thing to add which may be relevant. The engine runs on for about two seconds after the ignition is turned off.

What I don't understand is the randomness of it. Tonight I drove home from work again. The engine cut out once after driving for about 2 minutes then I drove 29 miles home with no further occurance, then drove to the shops with no cutting out.

If the injectors were leaking then surely they would always leak and the cutting out would occur more frequently and regularly. Or maybe I am being too logical.

[Mike Noc]

Easy enough to carry out a leakback test - am sure there is a 'how to' if you do a search and you only need a bit of tubing and 4 containers.

But if the engine is running on then you could have a problem with a sticking fuel pressure regulator.

Again plenty more info on that if you search the forum, and French Mike has some good tests you can carry out to check the HP fuel pressure with a voltmeter to help narrow down the fault.

[remetiffy]

So would that be the item ringed in red please? It looks like it is held on with some kind of clip.

Is the TURBO BOOST SENSOR known by any other name?

[Mike Noc]

Yes that is it, also known as a boost pressure sensor.

It isn't held on by a clip - that is the locking spring for the plug connection. It is held on by a single bolt.

[remetiffy]

Thanks for the confirmation. the other part I will check this weekend is the PRESSURE REGULATOR in the side of the HP PUMP.
Is this also easy to get to? Ive read this is held on with a splined bolt. If this is correct would anyone know what size that would be please.

Like I said I plan to check these two parts first. and knowing where they are is a big help.

[Kyletrek]

Sounds like the same problem I had and it turned out to be a faulty injector, drove from Blackpool to Doncaster 100+ miles no problem and then 5 miles from home it died and wouldn't restart