Originally Posted by Roosie
my car seems to hesitate on anything over 20psi ive changed plugs but im thinking of getting uprated pump and put a new harness in, just wonderd at what stage is a grp a pump needed
do the wiring first.....
i only had 9 volts to the fuel pump before i did mine now ive got over 14V
renew the earth aswell.
Also its worth renewing the alternator - battery cable, this gains resistance with age and heat from around the turbo area, i agian gained 1V at the battery from doing this....in turn gained that 1V at the fuel pump!