Isuzu Trooper Owners Club UK™

systemsolution@eircom.net · Newbie Joined: 20 Nov 2007 Posts: 3 Location: Ireland

Trooper 3.0 Diesel 1999 and quess what it wont sart?I believe the problem is with the immobiliser.The ecu appers to be fine but I think I need a tech2 machine to check the immobiliser is trhis correct?or is there anything else I can do.Also when you lock the vehicle it opens again itself.is this connected do you think?WILL THE TECH2 MACHINE IDENTIFY THE PROBLEM?I am in Taunton where is the nearest tech 2 machine?

Thanks Brian

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TimBanham · Posted: Tue Nov 20, 2007 20:34 Post subject:

If you lock it and then it unlocks itself this usually indicates that it thinks a door is open - check all your door switches including the boot.

When you say it doesn't start what do you mean? Nothing at all, turn over with no ignition.....

Yes a tech2 should be able to resolve your issues as to your nearest one that will be your nearest Isuzu dealer which if you go to the isuzu.co.uk website shows one in exeter and yeovil but there could be independents nearer try searching for your local agricultural dealer!
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3.0TD LWB Citation

systemsolution@eircom.net · Newbie Joined: 20 Nov 2007 Posts: 3 Location: Ireland

Thanks Tim,

The engine is turning and fuel pump has been checked.She is getting fuel to the injectors but just will not fire thats why we think its the immobileser.Is there any way of by-passing it?

eithan h · Posted: Tue Nov 20, 2007 21:18 Post subject:

no way of bypassing it but remember the injectors are oil fired if theres no oil going to them they won't fire either

systemsolution@eircom.net · Newbie Joined: 20 Nov 2007 Posts: 3 Location: Ireland

Thanks Ethan,
Is there an oil pressure valve or something before the injectors?Can I repalce the immobliser and where is located?Is it available aftermarket?

Regards Brian

TimBanham · Posted: Wed Nov 21, 2007 8:49 Post subject:

It sounds to me like your oil pressure sensor - They are a relatively cheap part but do need to be coded into your system to work properly.

As Eithan says if the system thinks there is no oil at the injectors it wont fire
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3.0TD LWB Citation

TimBanham · Posted: Wed Nov 21, 2007 8:50 Post subject:

This happened on mine and an independent diagnosics bloke was able to code it in without needing to go to main dealer (I believe he also diagnosed the fault)
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3.0TD LWB Citation

eithan h · Posted: Wed Nov 21, 2007 22:40 Post subject:

the immobiliser is built in to the ecu and the keys so unless you replace all that and the locks as well theres no way round it, also the system is pretty much bomb proof i've never had an immobilizer problem on a 3.0l yet so i very much doubt it's that. you could pull the white wire in the injector loom plug this will give you an idea if there is oil there and the sensor is faulty.