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Fuel Pump Circuit?

LNG 33S

By LNG 33S,
in Engines & Forced Induction

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LNG 33S Collaborator

LNG 33S

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Posted

hey all,

I have spent countless hours searching the internet for an answer to my problem but have found nothing, so for the people that feel like they are repeating themselves, im sorry.

I have a problem with my fuel pump circuit blowing a fuse! What i dont understand is that its the switching circuit side of the relay which is blowing. so it should have bugger all load on it! To make it clear, ive had this problem before and eventually tried (just for shits and giggles) taking out the variable fuel pump control module....which fixed my problem up until now......about 4 or 5 months! and now its gone back to blowing the same fuse! Also....its only when i get into it and put load on the engine (on boost) that it blows! i should mention im running a Vipec plug and pluy ECU. which has a constant ignition supply when they key is on out of the "fuel pump control" pin (as in it doesnt go away after the pump had primed, but the pump does turn off)

anyway.....ive found one english fuel pump wiring diagram for the RB25det, but im sure its wrong as it doesnt even have the fuse im talking about listed in the circuit!

So my question is....WTF is going?

Does anybody know what else runs off the same fuse/circuit?

Does anybody have a reliable wiring diagram for RB25det?

Im a 4th year auto elec so this should be easy, but not without a wiring diagram or tracing every single wire through the car to find out how the f**k the fuel pump is wired!

Thanks, Chris

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