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EDIT - Just realised wrong section, move to General Maintenance Please.

Hi guys,

Just installed a Walbro GSS342 into my skyline R34 GT-T without rewiring it. I'm only running stock turbo so I decided it could be done at a later date.

After I installed the Walbro I am now getting surging, as if the car momentarily loses power mostly at low RPM.

Is it a dead fuel pump? I bought it second hand and am not 100% on it's condition or is it a grounding issue?

Thanks in advance.

Owen

Edited by owen1r
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without rewiring it. I'm only running stock turbo so I decided it could be done at a later date.

Are you sure that was a good idea? Perhaps all the posts recommending the rewire weren't worth reading... It has absolutely nothing to do with your turbo size, the pump requires it as they don't like low voltage. You can try and short out the earth wire to the body, some do this as a quick fix, but I like running it through a fused relay.

Why would you buy a second hand pump when the new genuine Walbro pumps are $100 locally?

It was sold as a pump only used for a tank of fuel then upgrading to e85 setup, was $60 so I couldn't pass it up.

I've read through all the threads about the pump rewire and this issue was never mentioned, so I wasn't sure it if was related or the pump was dodgy.

Obviously wasn't safe to assume that it would flow similar to the stock pump at the stock voltage... Will do the complete rewire when I have time and see if that fixes the issue, as this will be the first time I've heard/read of it.

Thanks

Edited by owen1r

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