mazda axela or mazda 3 2.0 jy 37 engine

:woohoo: The car start fine but doesn't accelerate.have checked throttle body and accelerator pendle and are fine.trouble code p2122 -ff.

Hey Cyrus. Seems you have an APP sensor DTC... if this is the same as Toyota uses there are 2 hall effect sensors in the pedal.

have checked throttle body and accelerator pendle and are fine.

Just asking but how do you know they're fine?

Check out this link also. Don't know if this applies to your vehicle...

euroesi.mazda.co.jp/esicont/eu_eng/mazda.../id0102c1811700.html

I know are fine coz wen i test throttle motor moves up and down and i see my scan tool data changes fine.wen i check accelerator pendle pid is working only in one side.

wen i check accelerator pendle pid is working only in one side.

Don't really understand what you mean. Do you have more than 1 data PID of the APP on your scan tool ?

Yes.app senor 1 and app sensors 2.only app sensor 1 working fine app sensor 2 never change.hope u understand?

Yes. My point exactly. 2 sensors.... Do you have a wiring diagram?

Oh no!just help if u have one.Thank u

I hope Tyler or Noah do. Could you also mention the year? Thx

Seems like the pedal assembly is faulty, that's why they have redundant potentiometers on them, so if one craps out, you're not totally dead on the road.
I'd start with a simple visual of the connector and related harness in the under dash area, maybe even a wiggle test in the area while watching scan data. If you can provide the year, I'll see if I can find a diagram for the American counterpart to this car.

Should be a fairly straight forward diagnosis.
there's going to be 2 wires with their own 5v ref source each, at least one ground, MAYBE 2. And 2 signal wires. One will sweep from 5 to 0v, the other from 0 to 5v. as you move the pedal (probably more likely see 4.75v to 0.5v, but you get the idea).
You're a smart guy, with a backprobe, a multimeter, a flashlight and some patience, I bet you can trouble shoot this without a diagram.

Mazda 3 2006

Ok thx for the year. Have you tried to do some measurements on the APP like Noah suggested?

Dylan wrote: I hope Tyler or Noah do. Could you also mention the year? Thx

Why'd you mention me? It's not like I post wiring diagrams ALL the time! lol

Actually, I found one, but it honestly kinda sucks:



We can't even see where the yellow wire goes! I *think* it's supposed to be a sensor ground, but don't quote me there.

Why'd you mention me? It's not like I post wiring diagrams ALL the time! lol

:lol: When I see 'wiring diagrams' I immediately think of Tyler! Haha

Actually, I found one, but it honestly kinda sucks

Well at least you found something....

Have not tried but i will be working on that car tommoror oooh.i will post a fix here men!wiring diagram?kindly needed if possible.have discovered mazda e app sensor dnt work exactly like toyota.I mean 2 wires for 5 volts for app 1 and app 2.it is one wire for 5 volts and its signal wire and the other wire has 10 volt for app 2 when unpluged.plugged in 1 volt at idle wen pressing the gas 1 to 7 kindly check it u will see on white wire ooooooh

:lol: When I see 'wiring diagrams' I immediately think of Tyler! Haha

It's not like his avatar is a wiring diagram or anything

Looks like from left to right:
Ground
Sensor Ground
5v ref
Position signal ( 1 or 2)
Position signal (1 or 2)
Battery +

So not quite what I was thinking to begin with. Hope this helps you.

I actually liked what you were thinking the first time, as that's what I usually expect with an APP sensor. Mazda just had to be different, I guess?

And how DARE you judge me based on my avatar! lol

I actually liked what you were thinking the first time, as that's what I usually expect with an APP sensor. Mazda just had to be different, I guess?

Don't you love this Asian crap? :lol:

Oop!!another problem oooo.the car dnt start no injection/ignation pulse and am getting 3.45 on control wire on injectors and 5 volts on ignation coil controll wire wen unplugged,plugged 0 volt.DANNER tells if i have voltage on control wire possibly i have bad computer ground.check the computer ground and it's ok.

And this happened without anything else being touched? Your post is a little vague but I'd expect to see battery voltage at the injectors, even with a dead ecu. You don't say if that's cranking or constant? You have a scope or just multimeter?