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Dodge Nitro diesel

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29 Dec 2020 10:01 #45546 by ivoalaska
Replied by ivoalaska on topic Dodge Nitro diesel
Autodata have Chrysler Grand Voyager diagram for 2.8 diesel, its the same engine.

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29 Dec 2020 10:49 #45549 by mashili
Replied by mashili on topic Dodge Nitro diesel
It is not!

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29 Dec 2020 11:11 #45552 by mashili
Replied by mashili on topic Dodge Nitro diesel
I have found it bad it's not its not giving me a detailed report on injectors. The one I have is a 3.40 version

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01 Jan 2021 04:14 #45591 by mashili
Replied by mashili on topic Dodge Nitro diesel
Morning! The P0698 is not coming back anymore. The engine is able to crank and fuel is able to the diesel pipes

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01 Jan 2021 14:06 #45604 by shootingchimp
Replied by shootingchimp on topic Dodge Nitro diesel
CRD injectors are typically controlled by the pcm directly via internal capacitors, (both power and ground) and may show up to 80v when in operation. If all other pcm functionality is normal, very unlikely to be a fuse.
KOEO testing at injector plug may show a nominal low voltage, used by the pcm for circuit integrity testing.
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03 Jan 2021 06:09 #45644 by mashili
Replied by mashili on topic Dodge Nitro diesel
Morning! You are very correct because both the power and ground come direct from the ECM to the injectors. I did a voltage test on the powers of the injectors and cylinder 1 and 2 its giving me 0.055v and on cylinder 3 and 4 0.110v.

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03 Jan 2021 17:36 #45664 by BreakerPoints
Replied by BreakerPoints on topic Dodge Nitro diesel
Hi,
are those injectors Bosch with a fuel line from top? Any chance they are piezo injectors and not a solenoid?? How did you check for power and ground at the injectors? I guess you are aware that you shouldn't disconnect piezo during operation.

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04 Jan 2021 04:13 #45671 by mashili
Replied by mashili on topic Dodge Nitro diesel
Yes the are piezo bosch injectors. I used a multimeter to do the measurements and I disconnected them when measuring the voltage

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04 Jan 2021 04:31 #45672 by BreakerPoints
Replied by BreakerPoints on topic Dodge Nitro diesel
If you disconnect piezoelectric injector during engine operation you might end up with a injector stuck in open position and possible made your engine hydrolock. Even poking around with a backprobes leads can do the same, happened to me but no hydrolock luckily.
I think you will need oscilloscope to test them, there is short pulse of voltage on them and it goes up to 200v, but basically you need a amp clamp probe to check them. Approximately amp draw is up to 10A. Dvom can not be used to pick up that fast pulse of a voltage. I am talking generally not about your specific car.

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04 Jan 2021 10:36 #45682 by mashili
Replied by mashili on topic Dodge Nitro diesel
Hello! I don't have an oscilloscope yet. Looking for one right now. What other methods can I use

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04 Jan 2021 17:31 - 04 Jan 2021 18:04 #45695 by BreakerPoints
Replied by BreakerPoints on topic Dodge Nitro diesel
I think you are done. Maybe, but just maybe with a noid light (or led) in series with a corresponding resistor and then backprobed to connector. Don't know about other methods. Maybe someone else will shed a light.
There are pids and actuation tests on a bidirectional scanner which comes in handy.
Last edit: 04 Jan 2021 18:04 by BreakerPoints.

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08 Jan 2021 09:19 #45764 by mashili
Replied by mashili on topic Dodge Nitro diesel
Morning! Tried what you advised it almost worked but the voltage has gone down even when the sockets are plugged in

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14 Jan 2021 02:54 #45869 by mashili
Replied by mashili on topic Dodge Nitro diesel
Morning! When I back probe the power wires on injectors while the connectors are connected to the injectors number 1 is giving 0.4255 v, 2 is giving me 0.1250 and 3&4 is giving me 0.2155.

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