Hello everyone! People on the forums have usually been able to help me solve my car troubles in the past, but I'm having problems diagnosing the car issues this time.I have two rx8s, one is an 04 manual trans, and the other is a 05 auto/paddle. The 04 runs great, have never had any issues with it. The 05 on the other hand, we have had nothing but issues with. The car has had longs starts since we bought it. We were told that it was completely normal for the automatic to make chugging noices and take about 4 sec. to turn over and start. The car has also had flooding issues about 5 times. We replaced the starter, plugs, wires, battery, and ignition coils, because mazda said they were bad. Over the past 2 weeks the starts have been getting longer, and sometimes it will die/ flood right after a start. the car runs great after its started and warmed up; no power loss. We had a compression test ran about 6 months ago, and there were no problems there. I was also advised to do an engine decarb. I called adkins rotary in washington, and they walked me through the process.( the guy said he used to work for mazda), which was getting some amsoil power foam, and spray it into the intake, and the spark plug holes and let sit for a day then put it back togather and start the car and run all the chemicals out. we also did a seafoam treatment, and ran a full tank of gas through the car. Now the car barley starts, and acts like its flooded all the time.

We were also told it could be a leaky fuel injector, a compression issue, and a host of other things. Any insight into this would be very much appreciated. Sorry for the long post; thought it would be helpful to be as detailed as possible!


Thanks!

 

Yikes everything I would guess you ruled out.
Coils, plugs, compression, starter..

You could have a messed up mass air flow sensor? Give it a spray with some MAF cleaner, could also be that it's damaged but I have no idea how to check that. Other than that I'd try and reset all your computers.

Good luck.