smr6879 Posted May 25, 2013 Share Posted May 25, 2013 (edited) Accesport keeps coming up with all cylinders misfiring, what to do? 2002 Wrx Mods: IHI VF30 19psi STI 550cc inj APS cold air w/K&N filter Samco MAF hose Perrin turbo inlet hose APS Front mount intercooler Walbro 255lph fuel pump PDE catless downpipe, uppipe and highflow cat step colder plugs Edited May 25, 2013 by smr6879 Quote Link to comment Share on other sites More sharing options...
Fairtax4me Posted May 25, 2013 Share Posted May 25, 2013 What codes? Quote Link to comment Share on other sites More sharing options...
1 Lucky Texan Posted May 25, 2013 Share Posted May 25, 2013 step the plugs back up and see what happens. Quote Link to comment Share on other sites More sharing options...
ShawnW Posted May 25, 2013 Share Posted May 25, 2013 Has the car been tuned professionally on a dyno? I assume you have it on a basic stage 1 map? 19 PSI is awfully high if you haven't had a dyno tune done. Do you have an AF gauge so you know where you are in the stoichometric level? 14:1 goal and I bet you are real rich with those mods and have fouled plugs. Quote Link to comment Share on other sites More sharing options...
smr6879 Posted May 25, 2013 Author Share Posted May 25, 2013 P0301,P0302,P0303,P0304 are the codes im getting, the previous owner said it was tuned by P&L motorsport in IL Quote Link to comment Share on other sites More sharing options...
Fairtax4me Posted May 25, 2013 Share Posted May 25, 2013 My initial thought is fouled plugs because of the colder heat range, WRX runs cold plugs anyway, I don't see any need to have them even colder. Try a set of stock plugs first. Second thought is the MAF sensor could be covered in oil from that K&N. Quote Link to comment Share on other sites More sharing options...
smr6879 Posted May 25, 2013 Author Share Posted May 25, 2013 i got the codes to go away by changing the map, my 02 wrx over revs when boosting after i went to the drags. Would that be my clutch? Stage 1 exedy, previous owner says he had it put in at 80k now has 125k Quote Link to comment Share on other sites More sharing options...
Caboobaroo Posted May 25, 2013 Share Posted May 25, 2013 I've seen lightened flywheels on the '02 and '03 WRXs cause misfire codes. Quote Link to comment Share on other sites More sharing options...
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