yushinrt

hi how are you every one i need help today i was driving back from my mate house normaly and i stoped at the lights and i was trying to take off normaly but my car wasn't moveing and so pushed the gas pedal harder then nothing the few sec later the car starts moving then another stop same thing at got home and just idling my car and it really unstable at the low rev like 750-900 and it moves up and down up and down so i opened my bonnet and asked my mate to just rev the car then i can hear something in the engine(from that area) but at idle makes no noise and my mate that was there said it sounds like it exhaust i don;t know i feel like crying now don't know what to do my car is a 4speed jdm AT that done 56800km and i did change my coil like 9000km ago i have no idea what the problem is need help


i just went for another drive and just notice it ok to drive until i hit 90℃ then the car goes ruff and and does that laggy response no power thing do you guys think it the apex seal ??

Brettus

iTrader: (2)

can you be more specific - is it just lacking power - is the motor reving up and you go nowhere ?

yushinrt

when you push the accarater nothing happens at all then few sec later it goes like normal na the motor don't rev up

Hymee

iTrader: (1)

Do you have any engine lights? Could you have gotten bad fuel? Have you been playing around under the bonnet, and left a MAF sensor or other connector disconnected? A scan tool such as the one Brettus has in his sig can help diagnose the problem.

Are you running FI or anything non-stock in the engine department? Hard to say from your post.

Cheers,
Hymee.

yushinrt

i am running stand with hks airfilter ap pully greddy pully and ti exahust system and a oil catch can and latest stuff i did was ap pully installed 1week ago and today i just cleaned the airflow meter with contact cleaner

yushinrt

and no engine light funny things is that it only happens ofter 90c

StealthTL

iTrader: (1)

wot iz 90c

zaku

Did you experience stall during idle and need repeat stepping the accelerate pedal?
If yes, clean the throttle body and the problem go away

yushinrt

no i haven't stalled yet it sounds like it going to but it doesn;t lol.

what i want to know is that why does it make funny noise from the engine after the temp hits 90Celsius(oil temp) that is why i thort it could be the seal or the cat.

i am not to sure i am taking it to a dealer tomorow see what happens and there and i am not to sure about brown motor because it doesn;t do it a t low temp and makes no noise idels fine and engine check light never been on eather.

yushinrt

just got the car from dealer they recon nothing was wrong in my car. at that time bullshit so i took it for a drive and nothing it just drives normal.

what the **** ay what i want to know is that what the hell was that sound that coming from my engine

blacxicano

I have the same issue with my car at times. When stopped it idles fairly rough, and this week it stalled on me. Started the car back up and everything was fine. I notice that it only does it on warmer days (but its not consistent) but it does it once but then everything is fine. Everything is stock. The idle gets pretty rough. Im hoping to get into the dealer this week

yushinrt

blacxicano did you goto the dealer ??

blacxicano

work has had me flying out all over the place. I am hoping to take it in today.

Clavius

Could be your CAT. I had a similar experince where there was just no get up and go. At times I've read and heard it doesnt throw a CEL right away. Mine only threw a CEL once it finaly became clogged up completely.

tajabaho1

dead cat.

yushinrt

dead cat ?? i want to know what it is ay because the stupid mazda can't find any thing and they look at me like a dumb *** lol i had the car for 2 years now !!! i know when my car is not running right. how can you find out if you have a dead cat or not ??

Brettus

iTrader: (2)

give it a kick . If it stays still its dead . Sorry yushi - could not resist ....

tajabaho1

lol, well, according to your symptoms, it looks like your cat is about to die, in other words, its almost clogged, for some reason the CEL wont show until its really dead

anyhow, you said u hit the throttle like crazy and nothing happens for a while sounds like it, if u do someday hit the throttle and nothing happens at all, then your cat is dead

Clavius

Well sadly techs are well just that techs. All they do is type up symptoms on a friggin' pc next to a lift and pray that some form of TSB is avilable. They had my car for 3 days before realizing it was my CAT. Mind you I knew right away (after posting on here of course) and told them on the 2nd day but was blown off. As you said you know what your car sounds and acts like, sadly the tech's never take that into consideration especially since its a rotary engine and half the techs never deal with 'em at all.

Usualy a dead CAT results in low milage (8-13mpg avg for me), slow to no responce when gas pedal is pressed down fully, that and your exhaust note will be off by a little bit, best way to describe it is that its off by a frequency hard to describe in words really lol. Recommend they take a look at the CAT stating that several owners have had theirs replaced with similar symptons (some of us on here are on their 3rd CAT I believe if not 4th).

yushinrt

thanks for your help everyone.
i think i am going to get custom made cat ay.

blacxicano

I am dropping off the car tomorrow morning at 8 at Hiley here in dfw. I will let you guys know what they say.

blacxicano

Just got off the phone with Mazda they havent gotten to my car yet, they are about to start on it. They are going to run a compression and vacuum test on it. Going to go get the rental car right now.

swoope

iTrader: (5)

dry apex seals..

premix to mask the problem. damage is done..

beers

swoope

iTrader: (5)

[QUOTE=tajabaho1;2054759]lol, well, according to your symptoms, it looks like your cat is about to die, in other words, its almost clogged, for some reason the CEL wont show until its really dead

anyhow, you said u hit the throttle like crazy and nothing happens for a while sounds like it, if u do someday hit the throttle and nothing happens at all, then your cat is dead[/QUOTE

stop. please..

you dont know what you are talking about..

beers

tajabaho1

I never do swoope, I never do :D