walbro 255 fuel pump

[dan evoiv]

since fitting my new fuel pump i have noticed the car sometimes holding back between six thousand and seven thousand rpm when on full boost about .9 bar, when i change gear after the cars been holding back i get a yellow flash which i think must be a flame, i used to get flames now and then before fiting the fuel pump but since fitting the pump i get them all the time i have the battery off now i am hoping a ecu reset will sort it but i would like to know if anyone else has had a simular problem whrn upgrading to a walbro 255 fuelpump.

Did you fit a regulator when you put the pump in???

[dan evoiv]

thanks for your speedy reply :-)

no i havent fitted a reg at all just left the one that was in shouldi have changed the reg?

Hmmm wondering if you're over fuelling that's all??

Plugs may also be worth checking though! Have you changed the ecu at all, noticed your other mods.

I had a similar problem a couple of years ago, in the end the fault couldn't be traced so I wacked the Autronic in along with the walbro and a sard reg. An expensive, but pleasurable fix

[thorpedo]

very pleasurable

[dan evoiv]

it didn’t occur to me before but I had a turbo fitted at the same time do you think it likely that this could be causing the problem and not the fuel pump, I bought a second hand TME with no play in the shaft what else could be wrong with it, I think I’ve been robbed I have a ralliart ecu and injectors arriving next week and want it sorting for then, so I’m contemplating swapping the fuel pump back to see if I have been robbed on the turbo what do you guys think

I would put the new ecu in and see how it is then :muhaha:

[dan evoiv]

thanks for your help guys the ralli art ecu and 560cc injectors sorted it in the end.



cheers dan.