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2001 e46 318ci m43, injectors not firing

19K views 31 replies 8 participants last post by  bmcoupw1 
#1 ·
as the title says my injectors are not injecting fuel into the inlet, i know theres fuel at the rail, i was wondering what controls the fuel injectors cheers
 
#3 ·
No other immobiliser just the standered one, would a faulty sensor or relay cause it not too inject fuel, also there is a fuel leak on the pipe that connects to the fuel rail, the screw one, but only very small so i dont think this would cause it not to inject would it
 
#7 ·
Checked all the fuses there all ok, there is a spark, it nearly started earlier as i took all the injectors out and when i turned the ignition fuel splilled out into the manifold, so when i tried starting it up again it nearly fired. So i know its not injecting fuel i just dont know whats causing it not too. The way it died was like it ran out of fuel, but it had fuel in it. But i have been playing with the electrics as my window wipers have never worked properly but i have checked all the wires and cant see anything out of place.
 
#10 ·
Do you think it could be a faulty ecu, i know the engine management relay is working cause i can hear it clicking when the engine is cranked. So i need to know what controls the injectors and what could cause them to fail, the fuse is deffinetly ok i checked earlier.
 
#13 ·
Its going on a diagnostic when i can find one who will come to my house, do you think its the ecu then thats knackerd then if thats all that controls the injectors, or is there a sensor that could have failed, is there a way to fire the injectors manual to see if they work
 
#15 ·
Did you post on the electrical forum?

Did you say the inj fired fuel?

And you have a spark?

If you got both then the engine should run. Maybe the engine has flooded. If they do they are a pain to start. Put your foot flat to the floor and crank, and crank, and crank........

Keep going until she fires, on 1,2 then maybe 4 cylinders.

If you remove a spark plug does it smell of fuel?
 
#16 ·
a burst of bradex easi start might coax it into life but its valve burning evil stuff just dont use a lot of it for too long..

or warm the plugs in an oven before fitting em with gloves on used ta work on troublsome starters years ago..
 
#20 ·
i tried replacing the crankshaft sensor tonight, but it was such a pain in the arse to get at the allen key bolt. Is this really likely to cause it not to inject fuel and would it just pack in instantly, i thought they go slowly, how do i know if my ecu is getting power cause i disconnected it earlier and nothing changed the car still turned over so i think it may have packed in or not getting power to it.
 
#25 ·
depends on your cover if you have recovery and homestart cover or not but your at home so dunno may not take it to a garage for you,but they might do tho they usually ask where you want it taking to home or a garage..

put it back together aswell they will drive off again if you have it in bits..

basic cover only covers a roadside diagnosis or fix away from your home..

push it up the street or drag it to another street if you aint got homestart cover...
 
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