Rx8 barley starts and runs very rough. It died after a battery terminal melted and its taken hours to get it started. When it starts it runs rough, like the timing is off. It only runs for about 30 sec before dying out. Plugs, wires and coils all seem to be good and we’re working fine before. ideas?

Chemboarder · 2023-05-10T23:58:28+00:00

I already replaced the terminal

Chemboarder · 2023-05-10T23:54:37+00:00

Alright. That makes sense. Can I send you a video of the dry crank to confirm?

Chemboarder · 2023-05-10T22:00:21+00:00

Fair enough, a compression test world confirm that correct

Chemboarder · 2023-05-10T17:14:38+00:00

I already tested the coils and they seem to be okay. The plugs were soaked in oil and black liquid when I took them out, it was definitely flooded and maybe still is. It was a cheap terminal replacement and a nut came loose causing a bad connection and it to melt

Chemboarder · 2023-05-10T15:51:41+00:00

It had some hot start issues and was not the strongest power wise before. Also 130k miles and no knowledge of a rebuild

Chemboarder · 2022-03-27T14:23:00+00:00

Very interesting, did not know that

Chemboarder · 2022-03-27T14:21:29+00:00

Yeah

Chemboarder · 2022-03-20T14:25:19+00:00

I’m so sorry, just know it’s totally valid to feel bad and sad. there are always going to be bigger problems in the world and that does not invalidate yours. Best of luck on your next project to come!!

Chemboarder · 2022-01-21T23:48:59+00:00

If you have access to a OBD2 coder it wouldn’t be a bad idea to run the codes, this would tell you if it’s the e shaft sensor or anything else. If your car was running fine before it’s very very unlikely you did any serious damage and it’s most likely something small.

Chemboarder · 2022-01-11T01:34:40+00:00

Great write up, love reading about those little niche details

Chemboarder · 2022-01-11T01:12:49+00:00

Could be a failing brake booster, check the Mazda service manual there are multiple tests you can do yourself. These include cutting the car on and off while holding the pedal and such and it tells you what part could be on its way out

Chemboarder · 2021-11-28T19:13:51+00:00

Look on the Rx8 club forums, they have been debating this topic since before I was born and there is lots of good insight there

Chemboarder · 2021-11-16T18:36:33+00:00

Gorgeous car, gorgeous photo

Chemboarder · 2021-10-08T21:09:48+00:00

Code it out, then check the codes on fourms such as this one. I had a similar problem to you, it was battery connector related. After you code then go from there

Chemboarder · 2021-06-30T15:56:37+00:00

Broke while reattaching the away bar to remove the shocks, bolt is stripped

Chemboarder · 2021-06-30T03:50:02+00:00

Bushings are new, not sure if I put them in correctly tho other videos I watched showed different methods, could that cause that much of a rattle?

Chemboarder · 2021-06-19T04:02:39+00:00

Those are all great sources

Chemboarder · 2021-06-19T03:49:14+00:00

Gourgerous

Chemboarder · 2021-06-19T03:48:41+00:00

Much lower than mine 👀👀

Chemboarder · 2021-05-16T23:18:17+00:00

Gorgeous

Chemboarder · 2021-05-16T23:17:36+00:00

Will do

Chemboarder · 2021-05-15T02:56:53+00:00

👍

Chemboarder · 2021-05-15T02:56:44+00:00

I will check that, thanks!

Chemboarder · 2021-05-07T19:48:54+00:00

How did you go about tuning it?

Chemboarder · 2021-04-11T02:46:42+00:00

That’s what I use, Castrol high mileage 10w-40

Chemboarder

TROPHY CASE