2000 Volvo Penta 5.7 Gfi with no spark

jackra_1

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2000 Martinique 2600 5.7 Litre Gfi


Issue is no spark. Any ideas based on the following?


When I first got this boat the engine worked however no power to speak of.
Rotor contact badly burned.
Engine cranks and fuel injectors (two) work.
Engine in neutral and safety cut out disconnected.
I am unable to post the diagram !

Voltmeter shows 12 volts plus.
I am not getting 12 volts where the two wires go into the coil. I forget which one but one is supposed to have 12 volts and nothing with ignition on.
I have 12 volts all the way to the two relays mounted in front of Carb/injectors.

Also tachometer wants to read negative rpm when cranking.





Work done so far:


Replaced inlet manifold due to leak.


Replaced distributor. And rotor.


Replaced wires, plugs etc.


Replaced coil.


Replaced coil connectors.





Redid the instrument panel as it was falling to bits


so all gauges were taken out and now back in place.
 

alldodge

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Welcome
What do you mean by
Engine in neutral and safety cut out disconnected.

If you disconnected the kill switch then the motor doesn't get any power

Disconnect wire going to Tach to make sure Tach is not shorting out
 

jackra_1

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The kill switch was bypassed basically in early testing. Engine turns over nicely.
I have already tried disconnecting the tach.
 

alldodge

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Going to need more info.
The place I use to go to find parts break down is gone. I'm unable to find a Gfi but am able to find Gi
 

alldodge

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ok, it's a Gi
The power to the coil comes from pin J2-32 (pink/white) on the ECM
If your not getting 12V at the coil then might need to get ECM tested

Best thing would be to check for codes and also check all fuses
Slide1.JPG50 and 57 Gi GSi pin out.jpg

To check for codes using a 12V resistor led or a digital meter with tone
Find the DLC and connect, insert jumper and connect led or meter. Turn key on and count flashes or tones

DLC with LED code reader.jpg
 

jackra_1

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Thank you for that information. I was hoping it was not the ECM as I can not find new ones and good used ones are expensive.

I will do what you suggest. It will be a little while to obtain a 12 volt resistor type LED.
 

jackra_1

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After doing some research on marine ECMs it seems that if the fuel pumps works then the ECM is good.
Will be a few days yet before I receive the led with a resistor.
 

jackra_1

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My DLC has these rubber nipples. How do I jump across any of them?
 

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jackra_1

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Tomorrow I should be able to pick up the 12v resistor led . It has taken forever to have it delivered to my PO box.
Anyway I have checked all fuses and they are all ok. Same with all relays.

Assuming it is the ECM can anyone recommend a testing and repair service?

Also is anyone aware of a good used ECM for sale anywhere? Does the ECM have to be from a 2000 Volvo Penta 5.7 Gsi engine?
 

alldodge

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jackra_1

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Tried the diode and paper clip and absolutely nothing at all.
Will contact Bob now.
 

jackra_1

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Tried the diode and paper clip and absolutely nothing at all.
Will contact Bob now.
Will ship ECM off to Bob tomorrow.

Sorta hoping there is something wrong with this ECM and that it can be repaired. If there is nothing wrong with it hopefully an error code that will give me a clue.
 

jackra_1

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Will ship ECM off to Bob tomorrow.

Sorta hoping there is something wrong with this ECM and that it can be repaired. If there is nothing wrong with it hopefully an error code that will give me a clue.
Bob at ODB Diagnostics has the ECM now. I am hoping he can work on it early next week.
 

jackra_1

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Bob called me just now.
Upshot is that the ECM is just fine however some error codes could be an issue. The voltage regulator on the distributor could be the problem. He says most new ones, and the one I have is new, are bad out of the box from China.
I still have my original so will use that as a start when I get the ECM back.
 
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