Help! 2005 rx8 rough/long start low idle exhaust sputter
This car doesn't have an EGR valve or pipe:/ What exactly did you replace and clean then?
Have you reset the ECU after all these changes?
Replacing the MAF is very rarely necessary. Try putting the old one back and see if it changes. Make 1000000% sure there are no leaks, however small, in the intake tract. You can use an OBD reader to check long term fuel trim when the car is idling cold. If its higher than say 8, you have a vacuum leak that may be playing into this.
The catalytic converter is a weak point on these cars, and often results in a P0420. Remove it and visually inspect the catalyst lattice for damage.
What kind of coils did you install?
Have you reset the ECU after all these changes?
Replacing the MAF is very rarely necessary. Try putting the old one back and see if it changes. Make 1000000% sure there are no leaks, however small, in the intake tract. You can use an OBD reader to check long term fuel trim when the car is idling cold. If its higher than say 8, you have a vacuum leak that may be playing into this.
The catalytic converter is a weak point on these cars, and often results in a P0420. Remove it and visually inspect the catalyst lattice for damage.
What kind of coils did you install?
Registered
Joined: Sep 2017
Posts: 1,912
Likes: 287
From: Cayman Islands
Sounds like a bad Catalytic Converter. You have the faulty air pump code, bad catalyst code plus a misfire in rotor 2. Make sure you take it down and check it. If it's clogged or you see the catalyst is damaged, time to get a midpipe and let that car breathe.
Thread Starter
Registered
Joined: Oct 2019
Posts: 17
Likes: 0
This car doesn't have an EGR valve or pipe:/ What exactly did you replace and clean then?
Have you reset the ECU after all these changes?
Replacing the MAF is very rarely necessary. Try putting the old one back and see if it changes. Make 1000000% sure there are no leaks, however small, in the intake tract. You can use an OBD reader to check long term fuel trim when the car is idling cold. If its higher than say 8, you have a vacuum leak that may be playing into this.
The catalytic converter is a weak point on these cars, and often results in a P0420. Remove it and visually inspect the catalyst lattice for damage.
What kind of coils did you install?
Have you reset the ECU after all these changes?
Replacing the MAF is very rarely necessary. Try putting the old one back and see if it changes. Make 1000000% sure there are no leaks, however small, in the intake tract. You can use an OBD reader to check long term fuel trim when the car is idling cold. If its higher than say 8, you have a vacuum leak that may be playing into this.
The catalytic converter is a weak point on these cars, and often results in a P0420. Remove it and visually inspect the catalyst lattice for damage.
What kind of coils did you install?
coils
the thing is no cel thats whats throwing me off. It was running really smooth, any fuses or relays i should look out for?
unless it is just a coincidence and the cat went bad
Thread Starter
Registered
Joined: Oct 2019
Posts: 17
Likes: 0
Did ecu reset and put original maf . Same
can i remove just the cat and replace it? Or is it welded on
Thread Starter
Registered
Joined: Oct 2019
Posts: 17
Likes: 0
tried starting without it on, car takes a little bit to turn on but not the way in the video. So i dont know, probably have to take it to mazda
Registered
Joined: Sep 2017
Posts: 1,912
Likes: 287
From: Cayman Islands
Thread
Thread Starter
Forum
Replies
Last Post