Crankshaft Sensor

[MartinX]

My 1999 Frontera Sport RS has suddenly refused to start. I got the Vauxhall garage to come out and take a look. They could get no fault code and suggested that it was a faulty crankshaft sensor.
I've tested the plugs, HT leads and fuel and all appears good. Car cranks over but won't fire. Lads wouldn't tell me where the sensor was and hinted at two hours labour, recovery vehicle and part plus VAT.
Can anyone tell me where the sensor is and what I need to remove to get to it. Also the one I found online is the FACET Ref: 9.0228 at £43.36 from Mister Auto. Couldn't find a Bosch or Vauxhall genuine part
anywhere for a MK 11 (B).

Any help would be gratefully received.

[vauxsqueeks]

[MartinX]

Thanks for this.

Took HT leads off and put spare spark plug in and held it against body. When cranking over leads 1,3 and 4 had slight spark. Lead 2 had none.

[MartinX]

Hi

Checked out ebay, Amazon and everywhere else for a sensor. When I put in VAUXHALL, FRONTERA, 1999, MK 11 B. 2,2i, (136Hp). Petrol I get NO MATCH.

Everything seems to come up as Diesel or class A! Up to 1998.

Also carpartsconnexions has nothing listed.

Thanks for your help.

Help!!

[vauxsqueeks]

[MartinX]

Thanks for this.

Cleaned and changed position of engine earth.

Got new plugs and HT leads to fit.

Will replace coil if no joy with new plugs and leads. Then will change crank sensor if still no joy, if I can find it!

I've got the feeling I need to remove belt and cover to get to crank sensor. Is that right?

[MartinX]

Hi guys

Fitted new HT leads and spark plugs. The poor old Fronty wanted to go so badly …. but just couldn't.

So I've ordered a new crankshaft sensor. £11 is cheaper than £35 for the coil … which will be next.

Any more ideas as I'm no mechanic!

Thanks in advance

[vauxsqueeks]

[martinkettering]

There is 2 wires that are earthed to a bolt on coil pack,if its loose it can cause non starting problems.

[vauxsqueeks]

this one for reference.

[MartinX]

Thanks guys.

Working today but will get cracking tomorrow morning and post an update.

[MartinX]

Fitted new crank sensor.

Still no joy.

Will now test the injectors and check the connections to the coil pack - when I've worked out where they are!

[MartinX]

I'm feeling hopeless now!

I don't know where the fuel injectors are on the Fronty so I can clean the connectors.

Neither can I find the coil pack to check that.

I've come so far --- but feel I'm going backwards now…….

[RatCav]

I reckon that you have a dodgy coil pack. You have done everything else, also you have already diagnosed poor spark. If you follow the HT leads out the back of the plastic strip on the top of the engine they will all terminate onto the coil pack.

I wouldn't even touch the injectors personally.

[MartinX]

Ratcav thanks

Can I get to the Coil Pack from above to change it or do I have to go from under the car?

[RatCav]

Dunno .. I have no idea where it is on the 2.2 petrol, other than at the end of the HT leads.

You have double checked the output from the alternator haven't you?

Both at idle and held at various rev points. I had a bad alternator that overcharged when on throttle. Caused all sorts of miss fires and poor running.

[fogman]

you get to the coil pack from above martin.

[MartinX]

Okay guys.

Piggy backed a new coil pack, so as to avoid removing the old one which is nearly impossible without dropping the engine. NO JOY. So not the coil pack.

Checked and changed all earths. NO JOY.

Tipped petrol into throttle while turning over. FIRED pronto. So I presume no issue with engine at all.

Took off fuel filter and blew out excess fuel. Appears clean and clear. No fuel coming out from tank - is that because it has to be drawn out?

Put fuel filter back and cranked over. Checked fuel filter which was as dry as a bone. So no fuel coming from tank.

Is this an immobiliser issue? Is the immobiliser preventing the fuel from reaching the injectors? No fuel in the injectors.

This begs the question - how does the immobiliser work on the Frontera - what does it do and when does it kick in?

I am getting there with all your help. Now just the last few steps. Could it be a failing Fuel/Injector pump? In which case will that cost a fortune?

I don't want to change the pump only for it to be the immobiliser all along. This is a damned hard car to steal!!!!

[fogman]

have you checked the fuel pump relay ?
the immoboliser could be at fault..... hopefully vauxsqueeks can give you some help with that ! if it proves to be the fuel pump im sure gregster would have a 2nd hand 1 in stock.

[westo123]

If it's the immobiliser then that's a big problem, just search on here. I had to get a reprogrammed ECU! Mine would turn over but not fire, it was due to the battery going flat. Absolutely no option but the ECU. Hope it's the fuel pump, much easier and cheaper.