ok well code 12 is throttle sensor and code 58 is the atmospheric pressure sensor.I hope its the sensors and not the wiring or even worse the last step in the diagnosis.The ecu or ec-at.I mean if it ends up being the ecu ill just go buy a apex power fc and get the car fixed and upgraded at the same time.So I guess ill know a little more once me and pops start to check on these leads.thanx a lot guys.Without yo guys id still be looking at the wrong shit.And god knows an rx 7 is hard to diagnose.thanx again.

yeah i used to have all of them but since i changed the vacuum lines its not as noticeable but sometimes it still does it.So i know now what it is.it must be something simple because the car sometimes runs really good for a short period and then back to crippled

oh yeah by the way where exactly is the atmospheric pressure sensor located?

yeah... i know how u feel ;) such a relief huh... ;)

Dont worry i dont think its the ecu/ecu-at. but its a good reason to tell your parents that you need a new ecu... hahaha just joking...

or better yet where is the sensor located i the shop manual?

Shit im on my own when it comes to my problems.So if i do need an ecu then I have to cough up the 1200 for it.
Ohh well i was going to get one anyways so why not.If thats whats causing the problem.
So far ive got a Blitz dual intake,blitz blow off valve,blitz injectors,blitz raditor cap blitz oil cap and steering wheel cap,and polished hard pipes behind the blitz intakes.The stockplastic pipes look shitty in my opinion.
Once i get the car up and running peachy again im going to buy a blitz nur spec exhaust.After that i think im going to pickup a blitz front mount intercooler a power fc ,a downpipe and high flow cat.As far as body kits go probably the c west front and back with the mazdaspeed gt-c sideskirts and eithersome volk gt-c or volk gt-7 rims.Cant decide on which ones.But all this is going to take some time.Patience isnt my strong point.
lol.

i think its the MAP sensor!?! (mean atmospheric sensor) but not sure tho...

https://www.rx7club.com/forum/attach...&postid=182352

wow... hold on there... dont replace if not broken ;)

well that definatly helps out.You know what i dont get though.You guys call it a map sensor but its labeled boost sensor and i think the manual calls it something else.I called mazda to see if they had any idea what and where the atmospheric pressure sensor was and they had no clue.Hmm.Well im going to look through the manuals and see if i can find the boost sensor and see if its called by another name.I hate when even mazda doesnt know what the hell im asking for .

ok ive found out something.It seems that there is a pressure sensor and also a atmospheric pressure sensor.The atmospheric pressure sensor is inside the ecu.Guess im fucked.

Are you sure bro??? Did you check the MAP sensor? It's on the firewall, driver's side. Little black box that says boost sensor with a vac hose attached to the bottom. No hose=you found your problem. Problems sound very similar=hard starting, runs like ass, you forgot to mention if it was smoking (black smoke). DUDE! This is one of the most common/easiest fixes in our little community that will totally freak you out. If you missed the diagnostic map in the lid, then you owe it to yourself to check the MAP SENSOR one more time!

YEAH THAT'S THE ONE! SEE THE HOSE AT THE BOTTOM??? (sorry for yelling)

Yeah ive checked the map sensor.That happened to me once.Was driving along and all of a sudden the boost started to get erratic.Looked under the hood and i found that the vacuum hose that goes to the boost sensor came off.Put it back on and the car ran good again.So believe me.When my car started to do similar shit that was the first thing i checked.

Ok so last night i talked to some of my friends at work.One of them is a shop mechanic and has a lot of experience with cars.Im not really sure how old he is but Id say at least 50.The other guy i know is 30 years old and hes very good with cars as well.Anyways they both told me the same thing.Instead of replacing the ecu i should clean the wires and the throttle sensor itself.They said that the atmospheric pressure sensor also called the barometric pressure sensor makes very small corrections to the fuel maps.But that the throttle sensor is the main control of air and fuel ratio.So im going to go after the throttle sensor first.Another thing they said is that the throttle sensor can be stuck at a certain level.Which definatly explains the sweet spot on the pedal.Meaning that theres a place on the throttle that the car actually begins to speed up and build boost.Go beyod that point the car runs like crap.go before that point the car runs like crap.Hit that sweet spot the car seems sorta normal.So thats what im thinking right now.

speed sensor
 

CHange the speed sensor and the "hold" light should stop flashing and your car will run better. At least do this before dumping alot of money into ECUs. It's easy to do yourself it is at the bottom of the tranny with only 1 or 2 screws to fool with. I had the same problems and this 5 minute fix did it.

Thanx for the info Ill check that out.Sounds like a viable place to check.So what exactly were your cars symptoms when the speed sensor went out?

Hey Koonass......did you have to buy the sensor through the Mazda dealership? or did you have another source...

Ok so heres the weird part.I had an oil leak at the crank pulley.I took the pulley off and changed the front oil seal as well as the o ring that goes onto the pulley bolt.Changed the belts and i hooked everything back up.
Startd the car and now it runs damn near perfect.I took it for a spin and it pulls even harder now.Must be the air intake and the silicone vacuum job.Its definatly quite an improvement.The only weird thing that i did notice was this.I parked the car and i let it keep running.I kept raising the idle up to see if the car would stumble or if it would respond immeditelly.Anyways i let it idle back down and then the idle fluctutated between 1000rpms and 1500rpms.Back and forth back and forth for like 30 seconds.Then it just went back to normal idle.Oh and sometimes it idles a little high at like 1100rpms and sometimes it idles at 500rpms.Im thinking throttle position sensor.So if anyone has the link to damians tps recalibration technique help me out.Thats where i think the problem is.

yup... TPS... do a search dude... not so hard ;)

Zombie-thread resurrection!

Was there any resolution to this epic diatribe of a thread? I've got a thread on the same weirdness level (Barometric Pressure Sensor error [58], as well) and am really interested on how you proceeded.