Help! car pinging

[Doctor]

I just put in a GTR fuel pump and it pings off 10psi. Atleast I think its pinging. I does but it doesnt sound like it if you know what I mean.

Any theories are welcome

Ben

[akira]

Ben,

when I put in a GTR fuel pump and Malpassi fuel Reg in my old car I had a similar problem.

I had to get the ECU re- tuned because the extra fuel threw out the settings of the fuel map

Might be a good place to start looking.

Good luck

akira

[Doctor]

Do you think a temp fix might be to do the ol' reset? I am yet to get a regulator which I am planning on doing very soon. I think becuase the fuel maps out the timing goes out too?

[Sydneykid]

HI Doctor, I'd do the reset anyway. But if you have only installed a larger fuel pump and it is pinging, that can only be caused by leaning out. A more powerful fuel pump should not do that. Firstly, are you sure you got a stronger fuel pump? Secondly if you are, then I suggest you get the car along to a workshop that has a fuel pressure gauge and check the pump is actually performing as it should.

There is cause for concern here, either way.

Hope that helps.

[Doctor]

Thanks cheif I think I might have to do that. Could the stock regulator have shit itself? the problem is Im a stuborn bastard, I hate giving in that I cant fix something.

When I installed the pump all I did was hook the neg to neg & pos to pos. Was there anything else that needed doing?