Im so tired of trying to figure out what the problem is with my 02 wrx that im ready to blow it up (not serious, just an expression people ). Okay here's my problem......I keep getting a cel (misfire in cylinder's 2/3). The car never freaks-out, nor does it affect the driving or performance/idle....not sure wtf is going on . I just got back from a trip to idaho (780 miles one way) and I didnt get a single cel. Today I'm heading to Subaru to buy some new oem spark plugs (current plugs only have 13k-might be time to change...what do u think?) The car is pretty much stock as far as the engine goes....here is a list of my current setup;

Brakes & Wheels:
Rotora Slotted Rotors & axis brake front and back
Goodridge stainless steel brake lines
Prodrive P7 wheels in silver
BFgoodrich G-Force sport
Light weight wheel lugs & locks

Drivetrain:
ACT streetlight flywheel
ACT prostreet clutch
Kartboy short shifter and bushings
Razo racing pedals
06 STI transmission
06 STI axles (4)
06 STI driveshaft
06 STI dccd w/controller
06 STI hub’s and knuckles
06 STI struts

Engine/Power:
Dual-tip turboback exhaust

Interior:
Recaro SRD racing seats x2
OEM Carbon fiber interior trim
OEM Arm rest extender
OEM Premium sound system with a 6 CD changer
OEM Gauges (boost, volt, oil temp)

Suspension:
Cusco sway bars front and rear
Cusco front crossmember brace
Perrin endlinks
Whiteline anti-lift kit
Whiteline steering rack bushings
Whiteline rear strut bar
Hotchkis rear camber kit adjust bars
Swift Springs

 

ok.. the turboback without Engine management is not good, but i bet the Lightweight flywheel is ur problem.. lightweight flywheels are known to cause misfires. it would be better to have just gotten an oem flywheel...
get the new plugs and if it still happens, its probably ur flywheel.

but like i said at first, if u dont have engine management then dont run the turbo back exhaust

 

yea i know lightweight flywheels have a rep. of throwing a cel, but do they do it often? I really didnt have a choice about the flywheel because it came with the car when I bought it lol. thanks for the info

-marcus

 

yes it can do it often

 

vaccuume leak

 

but that would lead to idle and boos issues, he isn't having problems with either one of those

 

so cal rules!! no problems here!!!!!!!!!

plugs are fine pfr6g11

 

It's in your interest to get some engine management ASAP.

 

soon to be so cal......does that count!? 619-san diego in a couple months

 

if not that, valve adjustment
i just had a bunch of random cel's popping up with misfires, turns out after like 5 times to the dealer it was sticky valves
edit: when my cel's were on it wasnt running particularly rough, just not perfect. it wasnt noticable

 

no not boost issues

vaccuume line could have a small leak

it may not affect idle
most of the time it does nto all the time though

 

w00t warm weather

stayout of TJ for a while they have drug wars going on righ tnow

 

time for a new engine!

 

haha maybe the sti 2.5 to go with the tranny

 

i have a 2.5 sti motor on my stand collecting dust