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Fuel Pressure Falling On Boost..?


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  • ...JD TUNING ADELAIDE...
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  • Member For: 16y 6m 17d
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First things first do u have a " genuine " o44 so many DONT

It should say made in cheq republic if " genuine"

Next up what size positive AND negitive cables u running to the pump

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  • Menace
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  • Member For: 13y 7m 27d
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The earth is cable is direct to chassis and the power cable is what ever was supplied by Plaz.

The bosch pump does have the cheq republic blah on it.

Theres a constant 13V over the run with no voltage drop.

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  • Member For: 19y 4m 7d
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Actually. Stupid question. Was the dyno switched the afr for e85? If not it should be set to lambda. When I said in the 12's before, I actually ment the .8 lambda.

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http://www.bosch-mot...umps/FP-200.pdf

I think I found the 8 bar pump headsex was talking about.

I dont think the 044 has any dramas with running 13V but I dont know what I had at the battery.. you might be right about voltage drop to the pump term. "edit" Taking another look the operating voltage states its supposed to be 13.8V

Wish I had an ammeter I could have bung in series to check the current draw but that was a no go.

In saying that its the standard wiring that comes in the kit. Termination points were fine I checke them numerous times + I had a new battery in there. At one stage we even had a jumper pack attached.

TBH Headsex I was only looking at the AFR's but mainly the pump pressure the whole time. As soon as it reached 12.7 thereabouts the ramp up stopped

On a side note 1 thing I was appy to see is it says the pump is good for E85 Biofuels right at the top of the page :)

Edited by Kroozin
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It needs to be changed to lambda on the dyno. Or else we have no idea if the setting was changed to e85.. 0.8 lambda is same regardless of what fuel is being used.

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  • Menace
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Ok ill remember that for next time. Thanks

Are well soon Ill have 2x 044's on there so fuel pressure want fall thru its ass :)

Thanx to KPM for sorting me out with a better drop in fuel reg. that'll handle the flow.

Edited by Kroozin
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