Isuzu Trooper Owners Club UK™

bigrichbig · * Joined: 07 Apr 2010 Posts: 13 Location: east sussex

Hi just joined the forum hope someone might be able to throw some light on my situation.
It had been sitting for about a year before i got hold of it.
Have had problem with the trooper not wanting to start,but will on easy start and also lacks power,at the same time it had lost it drive.
Stripped out gearbox and replaced clutch kit and flywheel(was fitted back timed up right)now have drive.
Have plugged in scanner to see why engine check light was on,came up with rail pressure sensor circuit high and glow plug circuit. Tested glow plugs 3 were not working.
Have all now been replaced,spoken to my local dealer about any outstanding recalls.
Have now had all injectors replaced and a wire mod done for glow plugs,will now start with out easy start and smokes alot less.
Still have engine check light on and lacks power and still comes up with rail sensor circuit high, have heard if its the sensor it normally comes up with circuit low????
Is it the sensor,is it the pump,could it be a faulty set of injectors????
Please help before i pull all my hair out.
Many thanks
Richard.

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eithan h · Posted: Wed Apr 07, 2010 22:14 Post subject:

is the white wire still connected in to the plug by the dipstick tube or has it been cut and removed?

bigrichbig · * Joined: 07 Apr 2010 Posts: 13 Location: east sussex

Is that the injector multiplug with the pink wires?? it has been replaced with the injectors.

eithan h · Posted: Wed Apr 07, 2010 22:21 Post subject:

it will be on the car side of the loom it's right in the middle of one of the rows

bigrichbig · * Joined: 07 Apr 2010 Posts: 13 Location: east sussex

If its the connecter block which goes onto the injector loom but vehicle side of that cant see a white wire??? could it have been chopped back???
the connector im looking at is about ten wires?? does this seem right??

eithan h · Posted: Wed Apr 07, 2010 22:33 Post subject:

yes it will be one of the middle wires it may be yellow with age so are both the middle wires still there?

bigrichbig · * Joined: 07 Apr 2010 Posts: 13 Location: east sussex

In the block of ten wires they are all still connected,but as you said i could not see a white wire? is this one of the two wires which go to the o,r,p,s?

eithan h · Posted: Wed Apr 07, 2010 22:52 Post subject:

the white wire is for test purposes and bypasses the sensor, it's very rare to see a fault code for the orps unless it has really gone wrong or that wire gets disconnected and i've not seen one go really wrong yet. ideally you need it on a tech 2 to read the actual orp if it's reading 27.9mpa then that wire is broken or has been disconnected somewhere and thats the reason your getting a fault for that sensor

bigrichbig · * Joined: 07 Apr 2010 Posts: 13 Location: east sussex

Only have a snap on modis but when i and then my isuzu dealer plugged in it came up with rail circuit high cant think what the code number was at the mo.
Should i still try to disconnect the white wire and see?

bigrichbig · * Joined: 07 Apr 2010 Posts: 13 Location: east sussex

think the code was p0193 will be able to check to confirm this.

eithan h · Posted: Wed Apr 07, 2010 23:11 Post subject:

no because the vehicle start and runs and if you disconnect it it will put a code in anyway

eithan h · Posted: Wed Apr 07, 2010 23:12 Post subject:

that code is correct with high voltage so we need to know what the orps is reading oil pressure wise

bigrichbig · * Joined: 07 Apr 2010 Posts: 13 Location: east sussex

Do i need to get it back to my dealer to be pluged in and tested? Or does anyone else do it? (vauxhall tech 2) sorry for all the questions.

eithan h · Posted: Wed Apr 07, 2010 23:22 Post subject:

they might depends on if they got the right card or not we need to know pressure with just ignition on and what it is roughly when it's running

bigrichbig · * Joined: 07 Apr 2010 Posts: 13 Location: east sussex

Thank you very much for your help Smile

will let you know how i get on.
Richard