aw11 fuel pump

[kingmick]

have a look at the way you wired it up and that the cable hasnt got a bare section anywere! could be the ecu but i doudt it, as it dosnt happen often at all, its a toyota not holden!lol

over pressure

i think you will find if you put a big pump in that the return line is to small id from the fuel rail to the hard line. very small ID on the banjo swivel joints.

[robakka]

wht do you mean a bare section....?
it is still the standard pump in it so the return line should be fine....

[kingmick]

bare section with cut insulation from pulling it threw bare metal ect.

if stock fuel pump something is restricting the return flow, either the fuel REGs or the return line somewere. its the only way you can have higher pressure

[robakka]

i have checked for shorts and it is all fine. ie with multimeter...
i have also tried three different fuel pressure regs including the stock one and they all have the same affect....

what options does that leave me with......

[kingmick]

so how was the aftermarket fuel regs fitted to the rail?

[Ben Wilson]

I'd start going through the loom step by step, IIRC the fuel pump curcuit is fairly simple and there can't be that much hanging off it. If it blows the fuse with the pump disconnected, there must be something else wrong. Have you checked your guage for accuracy?

[robakka]

the fuel reg was mounted with an adaptor fitting. this worked all fine but now there is problems. i have gone thru all the wiring and there is no problem with it.
and why is am i getting such high presure from simply rewiring it....

[robakka]

hey after many hours ov work on my car replacing pump checking wiring and lots and lots ov other time consuming things.

ITS FIXED..............

i dunno why but i put earthed 4 gauge cable from the strut tower to the head and its all fine.....

wow what a waist ov time...

any way i guess you should always check your earths.........

[feral4mr2]

have you got the original ~4 guage earth from the battery to lower strut tower to the top of the gearbox?

[robakka]

yeah that is all still there its all way too bizare for me to figure out but it is still woking fine...