Misfire at high RPM. Please Help.
#1
Misfire at high RPM. Please Help.
Hi, I bought a 2005 RX 8 at the beginning of summer. Love the car. Within a week of ownership it started to flood and misfire. Searching the forums, I decided to replace coils and plugs. It was like a totally different car. It ran great for about 3 months. Now its doing the same thing with a new twist: it misfires mostly at high RPM's (above 6000). I've cleaned the MAF, Decarbed the engine, cleaned the air filter and reset the ECU. It throws the misfire code and also the code for the rear 02 sensor. I drove the **** out of it and crawled underneath to check for a glowing cat but no dice. It just rolled over 90,000 miles. Any suggestions?
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Misfire and rear O2? Sounds like a clogged cat--even if you didn't see the O2 bung glowing.
Garage it . Pull the midpipe off and shine a flashlight down the honeycomb to confirm. Relatively easy procedure, minus the possibility of rusted exhaust flanges. I would recommend it ASAP--clogged cats are known to cause fires.
Garage it . Pull the midpipe off and shine a flashlight down the honeycomb to confirm. Relatively easy procedure, minus the possibility of rusted exhaust flanges. I would recommend it ASAP--clogged cats are known to cause fires.
#8
Misfire and rear O2? Sounds like a clogged cat--even if you didn't see the O2 bung glowing.
Garage it . Pull the midpipe off and shine a flashlight down the honeycomb to confirm. Relatively easy procedure, minus the possibility of rusted exhaust flanges. I would recommend it ASAP--clogged cats are known to cause fires.
Garage it . Pull the midpipe off and shine a flashlight down the honeycomb to confirm. Relatively easy procedure, minus the possibility of rusted exhaust flanges. I would recommend it ASAP--clogged cats are known to cause fires.
#10
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Glad you found the culprit. On top of the midpipe from BHR, I highly recommend getting their ignition system (and new plugs at the same time), as running with a bad cat can have very harmful effects on the plugs themselves.
Hell, when mine went I had to replace all my plugs and coils...
Hell, when mine went I had to replace all my plugs and coils...
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