James256SSX
Recruit
- Joined
- Jun 2, 2022
- Messages
- 5
I have a 2009 Chaparral 256SSX that does not start. Here is what i know...
-The combusion pressure ranges from 160-190psi for all 8 cylinders.
-The engine runs with starter fluid.
-I can hear the fuel pump starting. (New so doubt this is the issue unless i installed incorrectly, doubtful)
-I took the injectors out and tested each on a 12v bench test. I also sprayed carb cleaner through them while activating. All seemed to fire fine. Not sure if there is a better way to test.
-Batteries are new and fully charged.
-no blown fuses from the box mounted beside the exhaust on the engine.
At this point, because all cylinders fire with starrer fluid and i know the individual combustion psi is within spec, i am thinking it is either bad fuel or the injectors arent getting the signal to fire. I did notice that the Electronic Unit - Volvo Penta (3862332), was disconnected (see pic). I have since reconnected it. The 1A fuse was also blown and replaced with 2A (could not locate a 1A fuse). Same, no start, issue persists. I do notice the EU has lights, but I have never seen these lit. Here is some info i found on the EU...
propridemarine.com
Sounds like this thing is a big deal.
-How can i test the EU to know if it is good?
-Does it really control the fuel and ignition systems?
-if system fires on starter fluid, could i assume the ignition coil/operation is fine?
-should the EU lights be on? What do they mean?
-How can i test to see if the injectors are getting a fire signal as required?
-Is there a way to test fuel?
Any help will be much appreciated.
-The combusion pressure ranges from 160-190psi for all 8 cylinders.
-The engine runs with starter fluid.
-I can hear the fuel pump starting. (New so doubt this is the issue unless i installed incorrectly, doubtful)
-I took the injectors out and tested each on a 12v bench test. I also sprayed carb cleaner through them while activating. All seemed to fire fine. Not sure if there is a better way to test.
-Batteries are new and fully charged.
-no blown fuses from the box mounted beside the exhaust on the engine.
At this point, because all cylinders fire with starrer fluid and i know the individual combustion psi is within spec, i am thinking it is either bad fuel or the injectors arent getting the signal to fire. I did notice that the Electronic Unit - Volvo Penta (3862332), was disconnected (see pic). I have since reconnected it. The 1A fuse was also blown and replaced with 2A (could not locate a 1A fuse). Same, no start, issue persists. I do notice the EU has lights, but I have never seen these lit. Here is some info i found on the EU...
Electronic Unit by Volvo Penta (3862332)
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propridemarine.com
-How can i test the EU to know if it is good?
-Does it really control the fuel and ignition systems?
-if system fires on starter fluid, could i assume the ignition coil/operation is fine?
-should the EU lights be on? What do they mean?
-How can i test to see if the injectors are getting a fire signal as required?
-Is there a way to test fuel?
Any help will be much appreciated.
