Hey all. First thanks for taking the time to check this out and hopefully help me out. I'm out of ideas and just making sure there isn't anything I missed. So here we go...
Car: 2004 Rx-8
Mods: Weapon-R Secret CAI, kenwood dnx 6400 head unit, upgraded starter, COBB AP stage 1 mapping. And that's all I know of (bought it used)
Problems: Dies at idle or in neutral while hot, cannot be restarted until whole vehicle has cooled down, can be restarted hot if still moving and car is put back into gear above ~ 8 MPH.
AC doesn't work. Compressor turns on intermittently
Cruise control doesn't work unless vehicle is warm.
Power loss through entire power band. Varying degrees of loss depending (seemingly) on all kinds of factors such as engine temperature, vehicle speed, and RPM, higher RPMs are not as bad as the mid range, and we all know the low end power of the 8 leaves something to be desired for the most part.
Misfires at ~ >6500 RPM no DTC left behind, just the CEL flashing.
every now and then theres a lunging/vibration that seems to modulate in direct relation to speed that is intermittent at highway speeds.
DTC P0610 is chronic and will reappear after being cleared and even after stock style flash is restored.
DTC P0000
I used to have the DTC for SSV stuck, no longer appears after a whole tank of spirited driving.
attempts made at repair: Fuel pump replaced with a Detchwerks 200 pump
Ignition coils replaced (3 of the 4 were not sparking, this was tested the old school way with a screwdriver and insulated pliers, 1-3 (front to rear) were not arcing while the 4th was)
Reset ECU via AP
disconnected battery and mashed the brakes reconnected battery
Verified starter was functioning properly (autozone tested it and said it was fine)
Verified all intake fittings were snug and plumb
Verified vacuum fittings were snug and plumb
Verified fluid levels were correct and apparently free of contaminants (no grit in oil, coolant of good color, mixture of coolant of good quality etc)
Seafoam directly into the little nipples on the intake manifold followed with a small amount of 2 cycle engine oil to help keep everything lubed up nicely. Smoke show was white in color and dense.
I've searched and searched my *** off and I can't find any other possibilities other than what the title implies. My next step is to let it idle for as long as it will and see if the CAT starts glowing red hot. Ipso facto it (the CAT has an appointment with a rubber mallet and a pipe to bust out the laminate/ honeycomb. If not it's on a compression test. I also have to get someone with a wire testing set to see if those are still good. I'll check to see if there's a cracked or fouled plug while I'm in there. Other than that I'm at a loss. Anyone have any other ideas?
Car: 2004 Rx-8
Mods: Weapon-R Secret CAI, kenwood dnx 6400 head unit, upgraded starter, COBB AP stage 1 mapping. And that's all I know of (bought it used)
Problems: Dies at idle or in neutral while hot, cannot be restarted until whole vehicle has cooled down, can be restarted hot if still moving and car is put back into gear above ~ 8 MPH.
AC doesn't work. Compressor turns on intermittently
Cruise control doesn't work unless vehicle is warm.
Power loss through entire power band. Varying degrees of loss depending (seemingly) on all kinds of factors such as engine temperature, vehicle speed, and RPM, higher RPMs are not as bad as the mid range, and we all know the low end power of the 8 leaves something to be desired for the most part.
Misfires at ~ >6500 RPM no DTC left behind, just the CEL flashing.
every now and then theres a lunging/vibration that seems to modulate in direct relation to speed that is intermittent at highway speeds.
DTC P0610 is chronic and will reappear after being cleared and even after stock style flash is restored.
DTC P0000
I used to have the DTC for SSV stuck, no longer appears after a whole tank of spirited driving.
attempts made at repair: Fuel pump replaced with a Detchwerks 200 pump
Ignition coils replaced (3 of the 4 were not sparking, this was tested the old school way with a screwdriver and insulated pliers, 1-3 (front to rear) were not arcing while the 4th was)
Reset ECU via AP
disconnected battery and mashed the brakes reconnected battery
Verified starter was functioning properly (autozone tested it and said it was fine)
Verified all intake fittings were snug and plumb
Verified vacuum fittings were snug and plumb
Verified fluid levels were correct and apparently free of contaminants (no grit in oil, coolant of good color, mixture of coolant of good quality etc)
Seafoam directly into the little nipples on the intake manifold followed with a small amount of 2 cycle engine oil to help keep everything lubed up nicely. Smoke show was white in color and dense.
I've searched and searched my *** off and I can't find any other possibilities other than what the title implies. My next step is to let it idle for as long as it will and see if the CAT starts glowing red hot. Ipso facto it (the CAT has an appointment with a rubber mallet and a pipe to bust out the laminate/ honeycomb. If not it's on a compression test. I also have to get someone with a wire testing set to see if those are still good. I'll check to see if there's a cracked or fouled plug while I'm in there. Other than that I'm at a loss. Anyone have any other ideas?
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