2004 Citroen berlingo multispace 1.6 Petrol Misfire

[wana torch it george]

hi i have a 2004 citroen berlingo multispace 1.6 16v petrol,it cut out and wont start since,all plugs are sparking had 2 different crankshaft sensors on it and tested them both,it will run if i pour petrol in to the inlet manifold untill it uses the fuel up,theres no pules to the injectors.i can here the fuel pump in the tank buzz when i turn ign on it dunt stay on all the time i presume it stays on till presures built up in the rail, also put full ecu kit on it and no change ime brand new on here not sure if ive put this question in the rite place,any advice would be appreciated,thanks

[GiveMeABreak]

Welcome to the Forum.

I've moved your post to a new Topic in the hope that more members will see it, rather than tagging it onto another topic.

[wana torch it george]

thanks mark

[wheeler]

Do the injectors have a live power supply when the engine is cranking ?

[wana torch it george]

hi wheeler,no ,i put a 12v bulb across the injector connector and turned it over no pulse, ive ordered a proper injector pulse tester to make sure,

[wana torch it george]

hi, checked injector plug with multi meter and theirs 3.6v at all the plugs when ign is switched on

[wheeler]

Pin 2 of each injector should have 12v, this may only be present when the engine is actually cranking over. The ECU then gives the injectors a pulsed earth to operate them. The live supply comes from the under bonnet fusebox via fuse 15. The wire leaves pin 16 of the 16 way black connector on the fusebox.

[wana torch it george]

just tried it theres just 3.45v also when cranking

[RichardW]

You need to interrogate it with Diagbox to see what it thinks it can see, what it thinks is wrong, or even if it is working at all - anything else is just poke and hope and likely to result in frustration and expense!

[wana torch it george]

got 5 fault codescylinder1 2 3 and4 injector control circuit low fault code p0261 p0264 p0267 p0270 p0122 found more info on fault codes here https://www.obd-codes.com/p0270

[wheeler]

What voltages are you getting at fuse 15 & the wire coming out of pin 16 of the 16 way black connector on the fusebox ?
If you are still only getting 3.5v does it start if you supply the wire with 12v ?

[wana torch it george]

at fuse 15 i get 3.43 same as at the injectors,i put 12v direct feed to fuse 15 and checked voltage at injector plug it went up to 8.5v or so and the petrol pump also stays on all the time the direct feed is on but sadley it still wont start,not 100% on what u mean about the 16 pin plug do i keep one end of meter on fuse and check that way or meter on negative on battery and check that way thanks

[wheeler]

Keep neg lead on neg post & check voltage at pin 16, (i suspect it will be the same as at the fuse). Try feeding pin 16 with a direct 12v feed & see if it starts now.

[wana torch it george]

hi yes it was the same and with direct feed still only 8.5 an injector plug and no start,ive scraped it now wheeler thanks for all the help mate, electrical problems so hard to find,thanks again,george

[wheeler]

That's a shame you have scrapped this, there must be a high resistance in the wire that comes from pin 16 of the 16 way black to the injectors, if I was to have a guess I would say it would be at the splice where the wire splits into 4 to go to each injector.