My rx8 wont idle well, idle jumping between 500-1000rpm.
When i rev the engine to the top rpm. there the engine dont have power...
Like over 4000rpm the car dont have power like it should.

I check the codes and it give me one P171 system too lean.
I change my maf but the same broplem is going on.

can enybady tell me where the fault is?


I have new motor, racing coils, CAI and full exhaust from trust.

 

what is a "racing coils" ... more information

what CAI ... more information

spark plug age? ... more information

catalyst installed? catalyst health? ...

 

Rmagic coils and CAI.
sparg plug is changed same time with the engine abaut half year a go.
but driven not more than 2000km(1200miles)
catalyst not installed.

 

not familiar with the rmagic cai, but does it have any air flow filtering like a mesh screen before the maf?

 

it is panel filter goes into normal box.
filter comes with a cold air inlet pipe
pipe is attached to oem filter box

 

Pics of the intake?

Click for more info