2006 Mazda RX-8 — no crank with full dash power, then it starts later

OP update: scanned the 2006 Mazda RX-8 again and still only have the one pending code, no new lights. If this is nothing, great. I want that in data.

If it were in my driveway, write temp, speed, and in-gear vs coast when the 2006 Mazda RX-8 does it — then decide on parts. Don't erase codes until someone who can help has seen them. That's the whole play. That's my plan before I call anyone.

Intermittent stuff lies if you only catch it once. If a shop can't duplicate it on the 2006 Mazda RX-8, bring a video plus freeze-frame data, not just a story. If the cheap test changes it, stop and reassess. On “8 — no crank with full dash,” that was the fork that mattered for me. Learned this the expensive way on a previous car. I'd rather look cautious in this thread than stuck later.

This is usually cheaper to test than to guess. Move a coil or plug on the 2006 Mazda RX-8 if it's cylinder-specific and see whether the code follows. Save the big job until that test fails. Time, temperature, and whether it's in gear are the notes that actually help a shop. I'm keeping receipts and dates in one folder.

I wouldn't throw parts yet. Two 2006 Mazda RX-8s can feel identical and have different causes, so measure before you copy someone else's repair. If the cheap test changes it, stop and reassess. Did the worksheet show tax yet? Not interested in a five-hour wait for a shrug.

Log the conditions before you spend. If a shop can't duplicate it on the 2006 Mazda RX-8, bring a video plus freeze-frame data, not just a story. That's the branch I'd chase this week. On “8 — no crank with full dash,” that was the fork that mattered for me. That's the whole play. This is the filter I use when the thread starts repeating itself. Happens in gear, not in park, for what that's worth.

Start with the test that can prove you wrong. Capture voltage while the 2006 Mazda RX-8 is actually failing — after it restarts you've lost the clue. That's the branch I'd chase this week. Stop there until you know. Happens in gear, not in park, for what that's worth.

If it were in my driveway, a pressure test beats staring at a dry driveway if the 2006 Mazda RX-8 is losing coolant with no puddle. That's the branch I'd chase this week. Do that first. I'd rather be boring and correct. Checking again after work.

Ask what changed right before it started. Swap the cheap/easy piece first on the 2006 Mazda RX-8 and see if the fault moves. You'll know quickly if you're on the wrong tree. No need to make it theatrical. Make the next action something you can finish this week. Trying not to diagnose from the couch.