HELP! Blowing 20A Fuse in engine compartment fuse box. VP 5.0 Gxi V8

langel

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My father in law's rinker 230 cc keeps blowing what i/we think is the A-EMC fuse or the fuel pump fuse. We first notised the problem when the engine wouldn't start. It was cranking fine. We started looking and found that 20A Fuse in the engine compartment fuse box. Now we have tried alot of things and a few 20 Amp fuses later we are starting to get a bit upset...

both of us are pretty rookies on this area:facepalm:.

Are there any rocket scientists in here who can help us!:confused:

Appreciate all the help we can get!

thanks
 

Don S

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Re: HELP! Blowing 20A Fuse in engine compartment fuse box. VP 5.0 Gxi V8

Without a Volvo serial number or a FULL model number (all the letters after the GXi) to even guess what fuse you are referring to.
 

langel

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Re: HELP! Blowing 20A Fuse in engine compartment fuse box. VP 5.0 Gxi V8

Thx for answering so fast!:) i was afraid that would be a question. we have looked after it. but we can't find it... do you have any idea where we can find it?
 

langel

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Re: HELP! Blowing 20A Fuse in engine compartment fuse box. VP 5.0 Gxi V8

I think i found the serial number!

1151147329

Model 230 Atlantic cc

Bit hard to read upside down in the dark. but hope it was right.
 

Don S

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Re: HELP! Blowing 20A Fuse in engine compartment fuse box. VP 5.0 Gxi V8

Bit hard to read upside down in the dark. but hope it was right.

It's not it, and without it, it's going to be hard to look at the proper wiring diagram.
Try a digital camera where you can't stick your head.
 

langel

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Re: HELP! Blowing 20A Fuse in engine compartment fuse box. VP 5.0 Gxi V8

Ok, i'll go and have another look=) Stay where you are!=D

Thanks a bunch for sharing you knowledge!
 

langel

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Re: HELP! Blowing 20A Fuse in engine compartment fuse box. VP 5.0 Gxi V8

Prodnr: 3869377
Type 5.0 OSI-GF
Serialnr: 4012209961
 

Don S

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Re: HELP! Blowing 20A Fuse in engine compartment fuse box. VP 5.0 Gxi V8

That's it.
 

langel

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Re: HELP! Blowing 20A Fuse in engine compartment fuse box. VP 5.0 Gxi V8

It was quite a challenge to access it:p Got fiberglas all over me now. so i hope you can figure something out of it=)

Thanks again!
 

Don S

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Re: HELP! Blowing 20A Fuse in engine compartment fuse box. VP 5.0 Gxi V8

I did notice it's not the GSi you said it was in the title.
 

langel

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Re: HELP! Blowing 20A Fuse in engine compartment fuse box. VP 5.0 Gxi V8

Details:p do you figure out something?
 

Don S

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Re: HELP! Blowing 20A Fuse in engine compartment fuse box. VP 5.0 Gxi V8

Ok, some initial things to check. Disconnect both fuel pumps (Push the wire clip in on the connector). Then put a new fuse in and turn the ignition switch on and see if the fuse blows. Turn key off.
Hook up one of the pumps. Key on.... Fuse blow or not?
If not hook up other pump, Key on ..... Fuse blow or not?

That will check both pumps and the relay.
 

langel

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Re: HELP! Blowing 20A Fuse in engine compartment fuse box. VP 5.0 Gxi V8

BTW

If you have the wiring diagram. is there any possibility that you would share it with me? i am an electrician myself. but i haven't much understanding on such type of electrics. would be nice to try and learn something of it=)
 

langel

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Re: HELP! Blowing 20A Fuse in engine compartment fuse box. VP 5.0 Gxi V8

we have done that already=) the fuse went out with both connectors off. i tried to disconnect the ECM connector. the one with all the wires to ignition and so on went. put in a new fuse. and it didn't blow.
 

langel

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Re: HELP! Blowing 20A Fuse in engine compartment fuse box. VP 5.0 Gxi V8

connected the connector to the EMC/EMC (emission control unit?) module and the fuse went out again. not so weird maybe since every component on the boat is connected to that somehow...
 

langel

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Re: HELP! Blowing 20A Fuse in engine compartment fuse box. VP 5.0 Gxi V8

don't remember if it was called emc or ecm btw... but i'll sure you understand what i mean=)
 

langel

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Re: HELP! Blowing 20A Fuse in engine compartment fuse box. VP 5.0 Gxi V8

I noticed you mentioned the ignition switch. the ignition switch is off. we only use the main circuit breaker and the fuse blows. don't know if that could be any help...
 

Don S

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Re: HELP! Blowing 20A Fuse in engine compartment fuse box. VP 5.0 Gxi V8

Might try swapping relays R4 and R5 (see wiring diag.) and see if the fuse blowing follows.
 
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