Need help please: sluggish power at wot til 6500rpm

mardi 10 février 2015

I have a 04 rx8 6spd with 80'XXX miles, I have a BHR midpipe (no cat), BHR ignition coil kit just installed 2 days ago, yellow optima, deleted air pump, custom single side exhaust, stock intake without VFAD.....



Codes showing: ( I am searching right now)



P0300-Random misfire



P0410-Secondary air injection circuit fail



P2259-AIRsolenoid valve control circuit high ON 2 CCM"



P0138-Rear O2 Sensor Voltage High



P0037-o2 Sensor Heater voltage low



My problem started after I let the car sit for week due to me going to houston texas while my home town was sitting at 30° all week. I came back home, got in the 8 and turned her on without any problems after letting her warm up I took her for a drive. But quickly noticed that my lower rpm power is sluggish til about 6500rpms then the power kicked in. I did every step on the "Misfire Topic" with no luck so I took my car to Mazda for a compression just to make sure my engine isn't giving, the results:



No1 (677.69/709.69/693.69)

No2 (687.69/660.69/682.69)



My next step tomorrow is the connections behind Intake manifold and checking for vacuum leaks.



I'm moving to Houston next week so any help before I go would be highly appreciated. .....Thanks!




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