Major loss of power and early cutout.
#1
Major loss of power and early cutout.
Hello everybody, first things first my name is chris and i bought a 2004 rx-8 about 5 months ago. For the most part i absolutely love the car. But as of last week it started giving me a headache with some problems. Also i am sorry for the lengthiness. But please read and try to help me.
so it starts out with no consistant issues, it had a missfire very rarely and would almost instantly go away pretty much since ive owned the car. Didnt really think much of it because like i said it always goes away almost as soon as it starts. Thats mainly just extra info incase its needed. But a few days ago it was running fine on my way home from work i parked it for the night, next day i left for work and it was seeming fine for a while then all of a sudden the rpms slowly started dropping, as well as my speed, on the freeway with cruise set. It was severely struggling to maintain speed. Then it got so bad that in gears 1, 2, 3, and neutral it wont rev past 6k, gears 4, 5, and 6 wont rev past 4k. Also it will only do so at 1/4 throttle. Anything over 1/4 throttle in lower gears the car gets super jumpy, as if it is cutting out, across the rpm range, and in higher gers sometimes is jumpy and is sometimes just non-exsistant.
i have changed the coils, plugs, wires, cleaned the maf, clead the throttle body, new filter, checked the bap. Every common suggestions given to people who had similar issues. Not exactly the same issues though.
after i did all that the issue still exsists and is worse because now when the car idles down from moving it stalls. It does start fine, and idle fine though. It only stalls when i come to a stop.
I am at a loss so if anyone could please help me that would be f$%&ing awsome. Thank you in advance.
so it starts out with no consistant issues, it had a missfire very rarely and would almost instantly go away pretty much since ive owned the car. Didnt really think much of it because like i said it always goes away almost as soon as it starts. Thats mainly just extra info incase its needed. But a few days ago it was running fine on my way home from work i parked it for the night, next day i left for work and it was seeming fine for a while then all of a sudden the rpms slowly started dropping, as well as my speed, on the freeway with cruise set. It was severely struggling to maintain speed. Then it got so bad that in gears 1, 2, 3, and neutral it wont rev past 6k, gears 4, 5, and 6 wont rev past 4k. Also it will only do so at 1/4 throttle. Anything over 1/4 throttle in lower gears the car gets super jumpy, as if it is cutting out, across the rpm range, and in higher gers sometimes is jumpy and is sometimes just non-exsistant.
i have changed the coils, plugs, wires, cleaned the maf, clead the throttle body, new filter, checked the bap. Every common suggestions given to people who had similar issues. Not exactly the same issues though.
after i did all that the issue still exsists and is worse because now when the car idles down from moving it stalls. It does start fine, and idle fine though. It only stalls when i come to a stop.
I am at a loss so if anyone could please help me that would be f$%&ing awsome. Thank you in advance.
#2
The Blue Blur
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bap? how many miles are on the engine? did you have a compression check before you bought it? have you cleaned the ESS? did you do the 20brake stomp? vacuum leak test?
Have you read the new owners thread? <- if not read it about 12 times
have you looked at the cat? misfires(blinking cel) if not taken care of right away will damage/clog the cat which will kill the engine.
Have you read the new owners thread? <- if not read it about 12 times
have you looked at the cat? misfires(blinking cel) if not taken care of right away will damage/clog the cat which will kill the engine.
#3
Bap ---> Barometric air pressure sensor.
and there are 92k on the car, about 15k on rebuild. Likei said it was running perfectly fine. lots of power. Untill this random fluke. So i do know compression is there. I have not cleaned the ess yet. I will do so tonight when i get the chance.
I have read the thread as well as a whole bunch more before i even bought the car. And i have not tried the break stomp yet but ill give it a shot.
And with the cat, that was somethingi have been seeing a lot. I plan on checking that out as well tonight.
and there are 92k on the car, about 15k on rebuild. Likei said it was running perfectly fine. lots of power. Untill this random fluke. So i do know compression is there. I have not cleaned the ess yet. I will do so tonight when i get the chance.
I have read the thread as well as a whole bunch more before i even bought the car. And i have not tried the break stomp yet but ill give it a shot.
And with the cat, that was somethingi have been seeing a lot. I plan on checking that out as well tonight.
#4
The Blue Blur
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and there are 92k on the car, about 15k on rebuild. Likei said it was running perfectly fine. lots of power. Untill this random fluke. So i do know compression is there. I have not cleaned the ess yet. I will do so tonight when i get the chance.I have read the thread as well as a whole bunch more before i even bought the car. And i have not tried the break stomp yet but ill give it a shot.
Clean the ess do the 20stomp and look over any and all vac lines, also double check the ignition components and make sure none of the wires are crossed, etc. Do you have any way of watching the ecu aka obdii scanner?
Another thing to consider would be fuel pump/injectors you could try a can of seafoam/lucas in the tank but it wont do much if the pumps going bad.
#5
If you drove it today after you get home instantly look under the car from the driver side so you can see the side of the cat with the O2 sensor if you see anything cherry red its clogged. That doesn't mean that it's not restricting air flow if you don't see anything tho.
Also i appreciate all of the help.
#7
and if i had a choice i wouldnt. But its my dd and i dont have another car. I baby the **** out of it thpugh when i have to drive it. And its only been like this for 2 or 3 days now.
#9
i do unfortunately.. but like i said i dont have a choice.. and its good news because ive planned on deleting the cat anyways amd its a free fix for me as ill just cut the cat out and weld in a piece of straight pipe in its place myself. I really do appreciate the help too. I wont be able to get around to seeing if it work untill tomorrow but i deffinately will update if it does.
#10
good news because it free and easy for me to fix. and ive been wanting to delete the cat anyways, and all ill have to do is get the cat off the car, cut it off the pipe, weld in a piece of straight pipe. I have exhaust pipe sittin around in my garage and welding is what i do. Only reasons im sayin its good news. Lol.
I do appreciate all of the help. I wontgeta chance to see if it works untill tomorrow evening though but i deffinately will post an update when i find out.
#11
Just got done checking the cat, and dang that thing was plugged. No wonder why it had no power. I did the ole remove the honeycomb guts on it for now till i can weld up a new pipe for it and took it for a spin afterwards amd shes alive again. Crazy to think how much issues can come from a plugged cat. Deffinately a big thanks to loki
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