940 non starter

[volvoz2000]

dont worry about the knock sensor, it works on quartz crystal compression effect so IIRC no voltage will be found.

After it fires does the spark get weaker? You still need to isolate 100% fuel or ignition, squirting some fuel into the inlet manifold is the easiest way to confirm.

[kevvydude]

right, it is between the pressure reg, or tdc sensor, going to borrow a injector plug tester tomorrow, i cant see the tdc sensor but assume it the wire that is going under crank pully,but ran out of light so will check tomorrow, i took all 4 plugs out and rested them over the plug holes turned it over and no flame, which shoud do as the vapour comes out the hole, it crude but it tell me no fuel getting in,so hopefully getting to the problem, we,ll see

[kevvydude]

i have fuel at rail, and got signal at injectors, cleared fault codes, turned over re-read codes and its coming up with 1-2-3 and 2-2-4, which is temp sensor, so going to get one tomorrow, hope it not a broken wire to sensor, crank sensor is working,as im getting spark, the wire that goes under pulley is oil light switch, so maybe it only has 1 sensor , cant see another one, hopefully engine temp sensor will sort it, fingers crossed

[kevvydude]

at last sorted, it turned out to fuel pressure reg, got a second hand one stuck it on and she started first time, while i had it in bits, changed the cam belt, [which was like a elastic band], they had,nt had it done for 78.000 mls hence why it was a tooth out, put new aux belts on, she runs the best she has since they,ve owned it, many many tnx to all of you for your input with this problem regards to to all. .......kev........

[theNEWT]

Well done....what a saga!!!