Hi Guys,

When i bought it the previous owner replaced coils, plugs and upgraded the starter but it would not start anylonger when hot.

I rebuild the engine and it runs fine but it cannot keep it its idle. When hot it will idle for a couple of seconds and then die.

When i disconnected the MAF sensor it will keep idling for ever.

I have replaced the MAF sensor, the Solenoids, checken for vacuum leaks multiple timestamp.

I am now thinking of clogged CAT, do you have any suggesties?

Thank you,

Hey guys I just finished my first rebuild. It’s a 13b msp from a 192hp rx8. However I wasn’t the one taking apart the engine so I have no clue how to put back together the harness. I managed to plus back almost everything but there are some that I don’t know where to plus

What's everyone doing for a tank mount? Is it worth me producing mounts to sell?

Putting up for sale an ultra-rare 2009 RX-8 R3, one of just 555 produced. This is the top-trim version of the RX-8 and comes with all the factory upgrades you’d want — suspension, wheels, seats, and aero — straight from Mazda. Perfect for someone looking for a clean, well-preserved rotary that hasn’t been thrashed or modded.

Quick Stats:

• 26,000 original miles
• Garage kept its whole life
• Clean title
• No engine issues, runs flawlessly
• Located in Northeast New Jersey

Highlights:

• 1.3L RENESIS Rotary – 232hp, 6-speed manual, 9,000 rpm
• R3-exclusive upgrades
  • Bilstein sport suspension,
  • Foam-filled front crossmember
  • 19" forged alloys
  • Aggressive aero kit
  • Factory Recaro bucket seats
  • 300W Bose sound system

Condition: No rust, no paintwork, no issues. Body and interior are in excellent shape. This is the R3 is exactly how it came from Hiroshima, Japan

These don’t come up often, especially not with this mileage and in this condition.
DM for more pics or to come see it. Serious buyers only please. Thanks for your interest.

I hit a really bad bump and she flooded with oil?? After 3 pulls it’s running fine again?

Ran out of space with cars overflowing to the street and my house looks like the set of fast and furious 12. This one got the short end of the stick as I don’t want to mess up the rare Jdm mint blue body kit driving it (won’t be able to replace it most likely if it breaks ). Sitting on tein coilovers on the highest setting and a 1/2 inch redneck lift in the back (can easily be removed) . Rest of the car is stock performance wise besides the drilled/slotted brakes

No check engine lights, traction control works, hot starts , cold starts , and breaks necks wherever it goes.

Code P0302 for cylinder 2 misfire. When I get to 4th gear, the rpms don't want to go up and it misfires at around 6k. I've replaced the spark plugs, wires, and ignition coils. What should I do?

To the people that have installed aftermarket coolant hose kits... Did you keep the pellets in the hoses? Ran without them? I've heard mixed messages.

Just replaced plugs, coils, ess sensor, getting oil in intake, losing my mind trying to find the cause if anyone has recommendations*other code is another p0335

2009 Mazda RX-8 Touring, OBO. I believe it's only had one owner prior to me buying it in Northern California. It's only ever has premium 91+ fuel and always used premix when fueling up.

I had a shop up in Washington (Peak Innovation Motorsports, as well as Pineapple Racing in Portland) professionally install a brand new 13-B 1.3L R2 engine shipped in from Japan and have only put a few thousand miles on it since. The taillights are custom carbon fiber imported from Japan manufactured by RE Amemiya. Aftermarket exhaust as well unsure of the manufacturer.

In good shape, has some exterior scratches, and a few minor dents. The driver side sun visor needs to be replaced and the dash is cracked on the passenger side. There is a check engine light that's been on and off for months, the Mazda dealership said it's due to a 02/Catalytic converter sensor is bad and needs to be replaced. The tires are not too old as well. Sunroof needs a small repair, has a aftermarket K&N air intake.

No trades.

currently on facebook marketplace: https://www.facebook.com/marketplace/item/539851829146810/

Quick question sometimes”most” the radio doesn’t work but when it does it sounds good just wondering if this could be the reason I bought it like this

Car wants to actually stay on for now, here's what has been done to it: Engine replaced with one with 76k miles, compression test was solid as of 400 miles ago. New transmission, clutch, throttle body, MAF sensor, cat, new air filter. New ignition coils and spark plugs, still has stock ignition wires from 93k miles ago.

Recently cleaned Ess, and now it's actually fighting to stay in idle sometimes before dying on me in traffic.

CEL for failing air pump, trying to find used one through shop working on it at the moment.

When going into neutral at 30+ mph and hitting brakes, it dies immediately.

Dies when cold, only holds around one or two idle hunt cycles before it dies. When fully warm, dies on occasion.

That's about it, hope someone can help or point me in the right direction!

I brought a 2004 RX8 in black a couple months back & was looking to buy some alloys for it, what colour/alloys would you recommend?

Looking to buy an rx8 cause other than my love of rotaries and wanting my first ever one, love the style and doors on them. I’m in the west Texas area next to New Mexico and Arizona and am just trying to see if anyone is either interested in letting one go around me on this thread, I would much rather prefer enthusiasts who care about taking care of their vehicles with high mileage RX-8’s than a gamble at a dealership, or a lawn ornament on marketplace. Got a quote from an Arizona dealer for 8900 for a 89k mile one 6 spd auto and would like to know if that is too high or to be expected, much thanks yall!

Hi RX8 community! I've got an old AE86 that I'm planning a Renesis swap in. Picking up a blown RX8 as a donor soon. (I'm set on this configuration, I like the low weight, high revs and smoothness of the Wankel. Plus my 86's engine died at nearly 400k miles, tranny is on the way out too).

I won't be using the RX8 stock ECU and harness, as I don't need the CAN and modules. So I'll be going standalone.

What ECUs have you had success with? What should I avoid?

Thanks for the help!

Only 50K Miles / 81k km, no rust, in almost perfect condition

Any help please

Just did a flash tune im assuming i should retune or reset with versatuner because the code is immediate, also takes more cranks to start. Or is ecu learning the flash? Not sure

Any advice from versatuners?

And or do i need to clean my ess?

2004., MT, 170kW

Changed VDI valve, all vacuum hoses.

Tested solenoids(they are relatively new) and SSV(no resistance in turning)

Only DTC is: P0037-FF HO2S Heater Control Circuit Low Voltage (Bank 1, Sensor 2)

The hiccup is at ~7500-8000rpm

Hello everyone, I am exposing a rather serious problem that I am experiencing. Engine rebuilt about 6000 km ago.

It has an unsteady idle, if I pull a gear at 7000 rpm it starts to make a lot of smoke (by a lot I mean like when an engine is blown, I can't see behind the car from so much oil burning), the color of the smoke is blue so it is oil + doesn't rev more than 7500 rpm.

I tried cleaning the intake and there was really a lot of oil in the intake but the problem persists. After the big smoke on throttle release the car makes really loud, really loud pops (never had so strong pops). Oil consumption has increased dramatically. On partial throttle in neutral gear the car runs really bad (croaks and rattle). In short the symptoms seem to be those of a very very rich 2t (on versatuner however the AFR values are in the normal range). I also mention that the car is decat. I'm going to try changing spark plugs on Monday to start with, any idea what it could be?

Thanks to you all!

LRB! lol Has anyone installed theses? Is it a quick install? I want to get them, ship them to a US place so I don't have to pay high shipping, driver across the border "for gas and lunch date with my wife" then install them in a parking lot (using ramps/hand tools) and not have to pay a tariff / duty.

I currently don't have an undertray and the LRP is cheaper then new/used I can find.