Isuzu Trooper Owners Club UK™

[drbob]

Ok problem solved.
MAP sensor.

Checked red wire 5v all good.
Checked black wire earth all good.
Checked signal wire no output.

Even after changing once before,this was the culprit.
Pulls like a truck again.

Thanks folks for all your help.

[Google]

[Sinbad01]

Sent mine to the local dealer this morning to have it checked out......Phone call this afternoon to say that it needs a new injector wiring loom AND fuel rail pressure sensor....much expense!!.Does this sound right..I was hoping my prob was the MAP sensor too..

[drbob]

Yes.
No harm in replacing oil rail pressure switch and harness  anyway,it will give you peace of mind.
Not hard to do yourself.
Takes about 2 hours max if you are handy with tools.
Have you checked both though.

With your MAP sensor there are 3 wires.
Check one has ground,one 5v,and the other should be 2.5v or so output when running.

ORPS can be checked by doing the "cut white wire in injector harness trick"
outlined in forums many times.

I would check both these first as it only takes 10 minuits and you woll know where you are at.

[Sinbad01]

Just got it back....New injector harness and oil rail pressure sensor.....running sweet.But still dont know which of these caused the check light to be on continuously.
So in the last 18months its had all the recall work +new oil pick up pipe,new throttle body,injector wiring harness,oil rail pressure sensor.Do you think I,ll get  a year trouble free now..??..lol