02 forester p 303 cylinder 3 misfire
I have 2002 forester.I have had a p303 cylinder 3 misfire for quite
sometime.I have changed coil pack all plugs swapped #3 wire with #1 put
2 different injectors in 1 & 3. Never made a difference the last thing was
new timing belt and belt tensioner and 2 idler pulleys. Ran fine for 100
miles then back to same thing come and go rough running at pull out.Is
rthere any timing advance built into cam gear or timing changing
sensers.Not sure whats my next step.Always # 3 cyl. though