hey everyone, i have 2004 rx8 and ive had this car for almost 5 years now greatt car i lovee my car and i only had couplve minor problems with my car witch i prety much fixed my self. this is my first post to this club ive never done this before. ok so here it goes. My car starts up fine and has very slight rought idle when it is warm and when i start driving it and hit the gass my rpm response is very poor. also when the higher rpm i go the car sound from exhaust is almost like its choking feels like missing air or fuel not sure. i have no cat on the car so thats not even an issue, i hada straight test pipe with a vibrant resonated welded on it with a single hks outlet exhaust. the other thing is i get no cel even for the cat not being there:S isnt that wierd? sounds awwsomeee love the sound!! car is been very well maintained been burns of clean oil non synthetic. i cleaned the filter already twice. the car has a bhr ignition system that i installed so its deffinately not coils wires or plugs because they been changed very recent. i use premimium gass and drive the car hard often so no carbon builds up. im starting to think that its ssv valve or the ecu gets confused iv read some threads on here about those. my car has 93k on it original engine. and yeh i get no cel from this problem which is another problem othwise there wouldnt be a freaking problem. ughhhhhhh. please help

 

try cleaning the MAF and eccentric shaft position sensor. Then turn the car to the "On" position (without turning car on), pump the brake pedal quickly (~20 times) until the oil level gauge sweeps.

 

Ok iv already cleaned the maf senor. I dont know where the eccentric shaft senor is. And i already tryed reseting ecu by that method. I even took off the battery terminal for about 10 mintutes and draining out the left energy by holding the brake pedal. When i do thatt and start my car the traction light wil come on and stay on until i shut off the car and start it again and it will go away not sure if thats normal. The last time my car was at the dealer it was for the computer it burnt out i dono y but yeh the dealer. Changd it under warranty this was in june. I dono what flash it has but yeh. Oh yeh iv goten a compression test and it passed i can post the numbers tommorw

 

Thanks for the replyy!!!

 

How many miles on your car? Any modifications?
Could be your fuel system (either a plug. leak or damage). Also (as you mentioned), there could be a problem with the SSV and APV valves.

 

ESS

Spray with electrical contact cleaner, wipe off and replace. Then, perform the brake stomp test

Troublshoot your valves
https://www.rx8club.com/series-i-do-yourself-forum-73/diy-troubleshoot-intake-valves-174009/

 

93k..i will clean that sensor tommorow and see what happens. Is it right by the plugs on the driver side tire? Thts wht it looks like in the pic. I never touched this sensor before. What is exactly the purpose of this sensor what does it tell the computer?

 

Its right in front of the engine, by your Eccentric shaft pulley.

This thread should help.

 

Ok thanks i know where it is now i seen the pic. It should a piece of cake for me to clean im really good at mechanical work i will get that no problem and see if it makes a difference. The car has 93000 km on itt. I dono what that comes to in miles but yehh. Again thnx i willpost again once i get that cleaned.

 

hey guys ive cleaned the eccentric shaft sensor it was so easy. following that i reset the ecu with brake pedal method. oil metered jumped so i no it reseted. when the car was warm it did not have a slight rough idle. i went for a small boot around de blockk it was running awsomee. i still have to go on an long drive and see. but soo far soo goodd thanks to rx8soldier and atwood101! u guys are awsomee. i will be posting some pics of my carr very sooon. and my exhaust system sound clips. so look out for thatt and i will add u guys to my friends list because i have no friends on here yet just started using this site thnx again

 

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