So, I was on the way to work this morning and something odd happened. Under hard acceleration, the check engine light started blinking - I had essentially floored it and shifted at about 8000 RPM to second when I noticed the light start blinking. I immediately let up and shifted to 4th traveling about 40-45 mph and it stopped blinking after about 3 or 4 seconds. I drove normally the rest of the way to work and it never came back on.

I had let the car warm up nearly all the way before even moving it, and then I drove for 5-10 minutes before this happened so the car was fully warm according to the gauge though the outside temp was only 10 degrees F. It was cold but the roads were clean and dry.

Can anyone tell me what happened? My car (2005 sunlight silver MT, GT, stock) only has about 24,000 miles on it, I just checked the oil several days ago and added some to make sure it was good. It's due for an oil change this week but that's the only maintenance it should need right now that I know of...

 

misfire

 

misfires +1

likely a spark plug and coil change is in order

 

Alright, I like the sound of agreement - I will see if I can find a day warm enough to do some of that stuff (coils and plugs) and try to avoid the insane dealer pricing.

 

+1 to coils and/or plugs.

also, if you use 87, you might get misfire too. go back to 93 everything is fine.

 

I always fill up with 93 - and it's nearly always shell v-power so I don't think that's the issue - gonne try and replace the plugs and coil asap

 

don't pay more than $80 for the spark plugs and $130 for ignition coils. those are shipped prices.

 

sounds like most people are getting the plugs from sparkplugs.com so that's where I looked. Does anyone have advice on where and which ignition coils to get?

Also, looking for a DIY (or at least tips) on replacing the ignition coils - haven't looked under the hood to see how tricky this might be

 

You should get your plugs from Charles R Hill (BHR) I dont know if you get a deal on plugs only if you buy his ignition system or what but i got them for 60 bucks

 

Just click the name for NGK Iridium plugs. I can't post a price but,, lets just say very good.

Charles R. Hill

Send him a PM.

 

coils and plugsFTW

 

Bummer, I already bought some from sparkplugs.com at 20 a piece...oh well

 

coils from finishlineperformance.com - oem should suffice your needs.

 

I went with the stock plugs, Magnacore wires, and stock coils and ended up spending just about $300 for everything after shipping ($90 for plugs[sparkplugs.com], $88 for wires[Pettit], and 120 for coils[Finish Line]). Any big mistakes there? - always willing to learn...

 

misfire +2

But don't replace anything.

These cars are known to misfire.

You can get them to misfire with new plugs and coils so......

Don't bother replacing anything until its time to do it.

Otherwise you are gonna post like the other members... i replace plugs and coils and i stll get a cel light...


Sure fix is only......

Access port from MM


However, if you track it you can still get it to misfire.

EDIT:

MAGNACORE I think those wires are bad for the RX8. Aren't those the ones with the capacitor in them?

 

not too sure about those wires, I personally went with the MSD wires from BHR for $60/set.

 

I read around people on the forum who had good reviews on the wires so hopefully they will perform well....I tried to do research and it seemed to come down to magnacore or racingbeat (those had the most positive reviews in the tech garage I could find)