car spec : 09 335i Ijsos.
doc race 6466 , fuel it stage 4 fuel pump with PI kit. and FPR with return line.
Jb4 and mhD BEF.
secondary fuel pump trigger is hobb's switch on charge pipe.
97506 with 0.022 gapped. PR coils.
2 meth nozzle for cooling on charge pipe.
93 oct ,
when I push gas pedal to get a log...got error code 29f3 and misfire on cyl 5.
always only cyl 5.
but...when the secondary fuel pump disconnect then car is normal same boost before.
no error code.
I thought the low fuel pressure sensro was maxed out.
so I tried to adjust the fuel pressure regulator , but didn't work well.
acutally, don't know how to do it for n54.
so...please look at log and give me any advise
doc race 6466 , fuel it stage 4 fuel pump with PI kit. and FPR with return line.
Jb4 and mhD BEF.
secondary fuel pump trigger is hobb's switch on charge pipe.
97506 with 0.022 gapped. PR coils.
2 meth nozzle for cooling on charge pipe.
93 oct ,
when I push gas pedal to get a log...got error code 29f3 and misfire on cyl 5.
always only cyl 5.
but...when the secondary fuel pump disconnect then car is normal same boost before.
no error code.
I thought the low fuel pressure sensro was maxed out.
so I tried to adjust the fuel pressure regulator , but didn't work well.
acutally, don't know how to do it for n54.
so...please look at log and give me any advise








