This is really aggravating, please help!

[sepulchral]

My car missfires at idle, like once every 10 seconds, i checked plugs, coilpacks, boostleaks, vaccum leaks, i dont know what it can be, plz help.

sr20det w/ fmic, dp, xhaust, actuator

[sepulchral]

compression is 140 135 140 140

[sepulchral]

Does anyone know what this might be?

[wootwoot]

could be a lot of things, i recommend going to a mechanic. is your bov recirculated? i dont know...

[Blues13]

O2 sensor could be bad.. that will cause it to run rich at idle. Although I'm not sure if it would be rich enough to backfire that much but worth a look.

[sepulchral]

i said missfires, not backfires, you know what it is? the motor shakes everytime the spark misses

[F3600]

Its probably running rich... maybe you have some trouble with you fuel regulator .. try to change it.