Need LOTS & Lots of help

:
2004 RX 8
OK guys here it goes

04, MT with 50k and change on it
bought it used
mods it had that i know of, boral cat back

i have done,
AEM CAI, super cat high flow cat, UR UDP, BHR coils and wires

I drive it a lil hard and race from time to time. only drive it in the late spring to early fall. this is the issue, Missfiring, will not go above 7k with out missfiring so bad that smoke is poring out to the point it will stop traffic behind me. will not start when it gets hot UNLESS i pump the brakes to reset the E Shaft sensor (most of the time. few times didnt work). I am a mechanic and have had a few other mechanics that i know look at it and this is what we have fig out

The coils wires and plugs are all working like they need to be, putting out the right spark. No engine codes what so ever show up durring idle or driving. Something that came to mind is is the E shaft Sensor going? But i couldnt test the compression on the motor b/c i dont have one for the car. It seems like there isnt enough compression to start it. So beside the leak test or compression test how do i know if i have a bad apex seal? I personally only have a few days to work on my car b/c i return to afganistan. so any help would be great, or has anybody even heard of a issue like this.

Thanks for the helps guys

Bobby
 
How long ago did you install the UDP? I am thinkiong you are on to something with either the e-shaft sensor or compression. I don't know of any way to check the compression other than a compression tester.
 
Hey guys so it has been a while sence i been here,

heres the update on everything, long story short i had blown seal that was putting compression into the crank case. so motor is pulled and at pineapple racing getting 6k worth the work done to it so i can have it back this fall/winter to put back in the car. plus i put 10k in mods to include the motor build so far to start racing it next yr and im still not fully done with everything.
 
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