02 wrx impreza turbo, when accelerating from around 40mph in 4th gear taking the revs all the way to the red line i am getting a flashing CEL light at around 4-5000 rpm this has beeen happening for a while untill the other night the CEL was flashing then came on permanantly, now have fault codes of missfire on cylinder1,2,and 3, i know its not the plugs done this with 3 different sets in pfr6b and pfr7b, also i know its not the coils on each cylinder, i cant really detect a missfire but the power is slightly down can feel a little stutter, wast told it could be the gearbox neutral position switch, any one got any inputs cheers

 

Brunny,

Loads of info on hear recently.... same fault.

Mines done it a few times before.

I have a spare NPS if you want to switch

Martin

 

My MY01 wrx does this from time to time as well, see other posts about it.

 

i have replaced the switch under warranty, still running her to see how its going,will keep you posted. cheers