help! motor missing in 3rd and 4th!

[DWilson]

Hi all, I've got an 06 Z air intake, kinetix plenum, throttle body bypass, hfc and exhaust. My car is missing in 3rd and 4th between 6000 and 7000 rpm, it sounds like ziz ziz ziz! I put a computer on it and it says left bank front 02 sensor, so that is the sensor on the header not the cat pipe. It keeps throwing a CEL, changed it twice wasted money any ideas why it's missing?

FYI the CEL fix will not fit on the header, it does work for the Cats. Help!

[evildky]

plugs, COP? if it's only trippign the sensor oint he manifold I'd think you have a miss, whihc I would suspect being a spark plug or cop issue

a new set of spark plugs is cpeap enough and you can move all the cop's left to right and vise versa and see if the problem goes away or moves

[DWilson]

hey what is a cop? thanks for the info!

[evildky]

Cop On Plug

[HeavyDuty]

Coil On Plug, the car has individual coils for each plug located on the plug themselves.