no spark and no fuel out of injectors
#1
no spark and no fuel out of injectors
I have a no spark and also do not have fuel coming out of the injectors. I have fuel to the injectors. I also have a brand new coil. Will a power output stage (ignition amp) or a Engine Speed sensor cause this condition? I have checked most of the wiring and have a new ECM which I can hook up my vag-com to. No codes on the Vag-Com. When I have the vag-com hookup should it show the rpm of the engine due to the rotation of the starter?
#3
RE: no spark and no fuel out of injectors
When I have the vag-com hookup should it show the rpm of the engine due to the rotation of the starter?
What year and engine? Are you immobilised?
#6
RE: no spark and no fuel out of injectors
Try putting a scope directly on the wires for the crankshaft position sensor at the connector at the ECM. If you get a signal, you may have an ECM issue.
Do you have 12V at the injectors when you ground them?
Do you have 12V at the injectors when you ground them?
#8
RE: no spark and no fuel out of injectors
Yes I get 12v at the injectors when I ground them. Figure it is either the crank position sensor or the engine speed sensor. How do you hook the scope up?
#9
RE: no spark and no fuel out of injectors
What engine speed sensor are you talking about?
You have a crankshaft position sensor and a camshaft position sensor. Do you have signal from either of those to your ECM? Hook a DVOM or scope up to the two wires coming from the sensors to the ECM. Back probe the two signal wires to each sensor. You'll need a wiring diagram to determine the wires at the connector.
You have a crankshaft position sensor and a camshaft position sensor. Do you have signal from either of those to your ECM? Hook a DVOM or scope up to the two wires coming from the sensors to the ECM. Back probe the two signal wires to each sensor. You'll need a wiring diagram to determine the wires at the connector.
#10
RE: no spark and no fuel out of injectors
There is an engine speed sensor on the same routing (although only two cabless) as the Crank position sensor. I would guess that with the cam and crank sensors that the ECU would still need to know the engine speed to accurately produce ignition. Is this correct or am I way off? I will get results on the crank and speed sensors today. I have already replaced the cam sensor and it works.