injector number 4 !! high reading

[johnboy2124]

hi all , ok we plugged the pp2000 into car yesterday and @ 1500revs the injector number 4 was reading 3.00 and all the others were all in minus !! do you think i could have a duff injector ?

also the white smoke looks to have cleared up with the treatment stuff i put in and fitted a new injector leak off pipes !

the guy came yesterday said replace my battery as it came up on his thingy machine !! ??

so can anyone suggest a good battery for a 307 hdi 2:0l diesel ? it has a 63ah on it now ( but i have replaced the starter motor with a 2kw so just thinking give it a bit more welly with a powerful battery !! >> )

any advice taken on board !!