My 06 is haveing issues starting. Once its started it's fine everything performs good. It does it when The car is cold or hot. Neither temp makes a diff. It stuggles either way. I just took the header, manifold, cai off and put all stock back on due to the car was haveing idle issues. I fixed that but now it has developed this. Also the gas pedal stalled the other day. Any input is welcome.

 

Correction to the post. Wife was confused about header and manifold. We took header off and put manifold back on. The only after market part left is the greddy cat back system. Other than that car is stock. Runs great! Really runs better and feels like it has more power now. But when starting the car it hesitates to do so. When car is hot or cold. The temp here has been around 90 degrees for awhile now. But did not start this problem until car went back to stock. Any help would be so helpful. We are confused. Hard cold starting is coils and plugs. And hot starting is compression. BTW it has new coils and plugs.

Thanks much!

 

theres a slight possibility that the ecu needs to be reset. unplug the battery for 15 mins or so plug it back in and see what happens. you may also want to reset the pcm memory by pressing on the break pedal 20 times in a row with the key in the on position.

You will see your oil pressure gauge sweep across and back again that's when you know you've done this correctly.

 

How about some info on you car (mileage, driving style, maintenance)?

Do you have the upgraded starter? 04 and 05 rx8s have weak starters. Further, it would not hurt to check you battery (charge and connections). Make sure that the spark plug wires are in place. When you changed coils and plugs did you check the spark plug wires? They usually last much longer than coils and plugs but they fail as well.

 

If it happened directly after the mods came off its the pcm and trims that need to be reset.

 

Ok. I don't know if it has up graded starter or not. We have owned car for 2 years. and for mileage. Car has 47k miles and motor has 28k on it which was replaced before we got the car. And the wires are ok. Everything was checked when coils and plugs where replaced. I think flashin ecu and pcm is a good idea. But I'm still not understanding that its only a starting problem and how everything else can be great.

 

Something tells me that you have the original starter and this might be the reason for your troubling starts. Do some search here about upgraded starter. Check your starter before anything else. It is really easy to see if you have the original or the upgraded starter. All you need is lift the car, find the starter (look at the left front side between the tire and the cat), and check the starter's label. Look here for more details:
https://www.rx8club.com/showthread.p...hlight=starter

 

yea well the pcm crap will take you all of 15 mins try that and check your starter. let us know what you find out...

 

So if I do the pcm thing that won't mess anything else up?

 

I doubt that resetting the ecu/pcm will help you with your starting problems. It won't mess up anything though. The only thing is that after resetting the ecu (disconnect the battery for 10 minutes) the computer will need some time (3-4 driving cycles: 1 cycle = turn on the car, drive it a bit, shut off the car) until it learns again the fuel trims. This is why before you reset the ecu it would be a good idea to warm up your engine and avoid flooding the car while your computer learns the fuel trims again.

 

Make sure do the 20 time break thing as well. It has a formal name I just cant think of it. when you unplug the pcm/ecu it will reset the codes for the vehicle and make the pcm relearn everything again.

When you do the PCM memory reset it deletes all the stored memory of the cars previous condition. It will not harm your vehicle at all. However since its running fine once it starts im not sure this will fix it but its worth a shot.

My theory is that the PCM learned and programmed in the intake and the header. then you removed them and put the stock things in.

Give it a shot let us know. Also did you ever test your alternator and battery? check the connections etc?

 

Probably not the "weak starter issue" of the 04/05's as the first post states that it's an '06. This does not mean that your starter or batter aren't going bad. I would have both checked out.

 

Thanks for pointing this out For some reason (I looked at the car of the second post) I thought it was an 05 and not an 06

 

We are going today to have batt and alt checked. Will post with results as soon as we know. Thanks for all the help so far.