Mr.Rx8alex

my 2004 rx8 87k CAI miles is not starting i drove it one day a couple blocks n it wanted to bog down(has done this in the past and just now gave out) so i put it in N and reved it to keep it alive at the stops (yes its an AUTOMATIC (-_-) barely made it home and took forever to start(i would have to hold the key down so it would start so i tried to just hold it for a short time to start and it pooped out) i had to wait a day. i got back in it, it started i then cleaned the ssv thinking that that was causing my car to bog down(also hard to accelerate also my exhaust was having a lot of backfiring) and now my 8 wont start my plugs were wet my cel flashes 8 times( the flashes would almost always do this when i had the key on ON position in the past) i checked the injectors with a noid light but wouldnt light checked for continuity from one of the injectors to the comp my DVOM beeped im also getting battery voltage could a transistor of gone out? or checking inj with a noid light not work????

checked fuel pressure 53 psi then goes down(alldata does not tell you this)
cleaned the spark plugs and i also cleaned my injectors
tried the no start procedures off of alldata i have not yet done a compression test
maf cleaned
also the trailing spark plug closest to the dash spit out black oil

does any on know what i has to do to resolve my problem?

Bori Rx8

It happen to me monday and also today I still looking for the problem.

Mr.Rx8alex

zokay sooo i ended up taking my spark plugs out bead blasted them
put a little bit of oil into my combustion chamber (used 1 inch of a straw from mcdonalds lol)
unplugged my air pump
unplugged my essentric shaft position sensor(cut off fuel and also cut off spark) and cranked it for about 5 seconds and waited like 5 i also plugged my senosor back up and left the air pump disconnected held the peddle to the floor and cranked i probably did this for like 2 hours because i was afraid to overheat my started but id walk away and worked on a bravada that was in the shop,
put my plugs back in and cranked that puppy i held down the accelerator peddle halfway down to pump gas into the engine (it slowly came back to life like it would start and die and i smoked up the shop lol it also growled really weird i'm guessing my car has to much carbon built up in the combustion chamber(probably so hot it ignites the fuel before my spark plugs do) causing it to idle rough when warm or warming up idk just a guess i'm still working on trying to figure out why its so dirty in their and rough idle and yes it has been seafoamed

Bori Rx8

Regular gas build alot of carbon

hyunghong08

do you regularly red line your car? It is recommended to redline it once a day at least. I had the "Reving up while in red light to keep engine on" problem when I changed my battery and supposably my "ecu" lost the fuel trim or whatever but it was solved after like 5 dangerous complete trips (one complete trip involving from cold engine to warm engine) and keeping it on a while before turning if off. It slowly "learned" fuel trim back. I heard you can get your car "re-programed" and solve the problem if you're willing to pay the stealership big bucks!