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2004 Mazda 2/Demio ODB II Error Codes


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didmug
Novice

Apr 24, 2017, 1:48 AM

Post #1 of 14 (287 views)
2004 Mazda 2/Demio ODB II Error Codes Sign In



Hello All,


I have a 2004 Mazda 2/Demio 1340cc with about 45000 miles on it.

Using the Maxiscan MS309 ODB II/EODB reader for diagnostics, I get the following 8 error messages:



1/8: P0715 $07E8 Generic

Input/Turbine Speed Sensor A circuit.


2/8: P0351 $07E8 Generic

Ignition coil A primary/secondary circuit.


3/8: P0733 $07E8 Generic

Gear 3 Incorrect Ratio.


4/8: P0841 $07E8 Generic

Transmission fluid pressure sensor switch A circuit Range/Performance.


5/8: P0031 $07E8 Generic

HO2S Heat Control Circuit Low Bank 1 Sensor 1.


6/8: P0351 $07E8pd Generic

Ignition coil A primary/secondary circuit.

7/8: P0841 $07E8pd Generic

Transmission fluid pressure sensor switch A circuit Range/Performance.

8/8: P0031 $07E8pd Generic

HO2S Heat Control Circuit Low Bank 1 Sensor 1.

So can anyone tell me what needs to be done, in terms of dealing with these errors? Much appreciated.


Regards,

Dan.





Discretesignals
Ultimate Carjunky / Moderator
Discretesignals profile image

Apr 24, 2017, 5:56 AM

Post #2 of 14 (276 views)
Re: 2004 Mazda 2/Demio ODB II Error Codes Sign In

Is the engine misfiring?

Was any recent work performed?
What is the history on this?





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.


didmug
Novice

Apr 24, 2017, 10:41 AM

Post #3 of 14 (248 views)
Re: 2004 Mazda 2/Demio ODB II Error Codes Sign In

The torque convertor cleaned recently.

Failed ignition coil for one spark plug replaced after comolete failure with OEM replacement.

Car shakes vigourously when accelerating.


Discretesignals
Ultimate Carjunky / Moderator
Discretesignals profile image

Apr 24, 2017, 11:14 AM

Post #4 of 14 (240 views)
Re: 2004 Mazda 2/Demio ODB II Error Codes Sign In

When you state the torque converter was cleaned, how was that done? Do you mean a transmission fluid exchange?

P0351 code means there is a problem with #1 ignition coil's primary circuit. Someone is going to need to test that circuit to be sure the wiring and computer driver is good. It will probably require the use of a lab scope.

That vehicle isn't sold here in the states, so don't have access to the wiring diagrams or the ignition system design.





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.


didmug
Novice

Apr 24, 2017, 12:01 PM

Post #5 of 14 (231 views)
Re: 2004 Mazda 2/Demio ODB II Error Codes Sign In

Torque converter was actually removed and cleaned with petrol(gasoline), after which it was returned and new ATF added.

I will get that circuit checked as you've stated.

Let me see whether I can get those diagrams for you.


Tom Greenleaf
Ultimate Carjunky / Moderator
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Apr 24, 2017, 12:09 PM

Post #6 of 14 (229 views)
Re: 2004 Mazda 2/Demio ODB II Error Codes Sign In

As Discrete Signals (DS) we say - how did you do that? You just said and that's a lot to go thru to rinse out a torque converter. IDK this car but it might have a drain plug for it and some if you are a specialist can add one but that's not generally done.


Kind of suggests this history that in doing that lots of stuff gets disturbed - wires and more. Trans alone shouldn't cause an engine to skip but a skipping (misfiring one) could cause erratic transmission behavior because it's being told what to do based on an engine running properly or makes wrong decisions on where to be,


T



didmug
Novice

Apr 24, 2017, 12:16 PM

Post #7 of 14 (226 views)
Re: 2004 Mazda 2/Demio ODB II Error Codes Sign In

Actually I didn't do it myself.It was done at the workshop as I was there.As you said, it was a delicate complicated procedure.

What bothers me is that shaking when accelerating and delay in picking speed on hills.


Tom Greenleaf
Ultimate Carjunky / Moderator
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Apr 24, 2017, 1:04 PM

Post #8 of 14 (220 views)
Re: 2004 Mazda 2/Demio ODB II Error Codes Sign In

! I wouldn't do that nor recommend that. IDK how you would know all "petrol" was out not messing up the transmission? It would - way too thin plus IDK what more that would harm?


If trans was not keyed properly upon tightening back up that would ruin the front pump of trans and harm converter.


Hey - not passing judgement too much as I don't know this car but doesn't sound like a good idea to have done that at all @ 45,000 miles no less! Now as that's a bit invasive just take out and put in no telling what things got bumped or wires pulled?


Think: Ever try to get all the water out of a tire off the rim soaking wet? Torque converter would be about the same but harder!


T



didmug
Novice

Apr 25, 2017, 1:16 AM

Post #9 of 14 (200 views)
Re: 2004 Mazda 2/Demio ODB II Error Codes Sign In

Sorry, let me make a correction. Sometimes I can get car parts naming mixed up. What was removed and cleaned with petrol was the car's transmission oil pan and transmission filter, and the OEM gasket was replaced by RTV silicone gasket maker when being returned. Again, sorry for that.


Tom Greenleaf
Ultimate Carjunky / Moderator
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Apr 25, 2017, 1:51 AM

Post #10 of 14 (194 views)
Re: 2004 Mazda 2/Demio ODB II Error Codes Sign In

OK. This thread began with a bunch of error codes then the questions of what history before that might have been involved. Beware of what you call widely RTV gasket maker. It's my strong opinion that it should be full cured/dry before installing a gasketed part or risk uncured product to flow thru a very complex hydraulic machine which a transmission is.


Just removing and replacing large components is invasive to a vehicle and can be the cause of problems.


Seems we are "third party" (means you didn't do this another person did and you are explaining what that person did) to this work which is a great disadvantage for you and those here trying to help.


With that normally you would take it back because a fix didn't solve your problem not needing to know a thing about it.


Sorry on my part. I'm inclined to look for some common reason why many problems or codes come up all at once is a frequent cause for that to happen.


For right now. Is transmission properly filled with proper fluid as best you can know and then maybe can move on that this isn't a transmission issue at all as engine and transmissions do need to work together and cooperate or very much will confuse each other,


T



didmug
Novice

Apr 25, 2017, 2:45 AM

Post #11 of 14 (186 views)
Re: 2004 Mazda 2/Demio ODB II Error Codes Sign In

Yes,transmission fluid is at OK. Level. About that description, I was actually there when it was being done. However, what I have described to you is accurate.

I decided to check ODB II readings when I realised the car jitters when accelerating and sometimes does not pick speed well.Well, thanks for your probing questions,at least you've made me look deeper.


(This post was edited by didmug on Apr 25, 2017, 2:46 AM)


Tom Greenleaf
Ultimate Carjunky / Moderator
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Apr 25, 2017, 3:55 AM

Post #12 of 14 (180 views)
Re: 2004 Mazda 2/Demio ODB II Error Codes Sign In

Dan - You found up top a code saying a coil or misfire of a cylinder because of that was happening. Just that if driven some then you push throttle more and it begins to deliver more fuel that isn't being burned then confuses the O2 heated sensor up to harming it. At the same time the computer is trying to have this in the proper gear for the load detected, speed you are going and choose the correct gear but with poor performance of engine alone will chose the wrong one.


That's how this diagnosis that could be ONE thing grows to 8 codes for your particular reader. The reading are clues not what to do right away you interpret them and find out why when at all possible.
FYI - computer controlled engines/transmissions know many things all at once and make adjustments for you. Engine temp, air temp, air flow, throttle position you requested by your foot, adjusts fuel delivery and timing and lots, lots more.


So, if misfiring for any reason and you ask for more power it delivers more fuel for the conditions it sees which may be wrong, fouls a spark plug with too much fuel. O2 sensor detects too much so back off. Transmission gets info you are in the wrong gear - downshift. OMG - one thing "domino" a game effect of problems that probably had one problem to begin with.


Putting all that together for the fix is still a judgment call by the tech with the information at hand and observations. For me I tend to look for the silly stuff first like a hose has fallen off or a wire is unplugged and move on from those basics.


Now it remains unknown if O2 sensor is ruined or just reporting info it can't do well wet with fuel. Trans doesn't know what to do.


I thing you problem started with a bad coil or wire to it and has grown from there and now doubt transmission was a problem at all just acting on a lousy running engine that didn't have the RPMs perhaps to create pressure properly so this spits out all those codes.


Now the source must be found then subsequent sensors and items known not harmed takes some serious experience and testing. It's not as easy as a list off a code reader alone.


What do you wish to do as this isn't going to heal itself? The longer this goes on the harder and more involved it's going to get in my opinion (IMO) beyond what a forum such as this is going to help you enough at all. I really think you need some highly trained and equipped help and just provide the history you have and let a real mechanic take this on or at least a full diagnosis of what it will take to get this back to running as perfect as it should,


Tom



didmug
Novice

Apr 25, 2017, 4:10 AM

Post #13 of 14 (176 views)
Re: 2004 Mazda 2/Demio ODB II Error Codes Sign In

Thanks Tom, you've really helped me. I believe I will have to look for an expert Mazda Mechanic here in Kenya, though they are very few....but I believe I will get one and I will post how that goes.


Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Apr 25, 2017, 4:55 AM

Post #14 of 14 (170 views)
Re: 2004 Mazda 2/Demio ODB II Error Codes Sign In

Now I can understand better why you are so involved with a fix, even own your own scanner and search out "how to" fixes for what is complicated by so many things now your location.


Forgive my inability to know Kenya and what and where to deal with a car that might only be sold to so many countries not all and unique in many ways for a final fix and parts that are correct.


Haven't been and have travelled tons. To me I would say Nairobi is probably the city if the only that might have the techs to handle this fully quite possibly only at a Mazda real authorized dealer. They should also be certified that they are Mazda trained with available tech info through Mazda at their hands. Stuff you wouldn't have on the web.
Local to you and the country you and techs = mechanics would know what fuels and quality of it are common - I can't know that.


I do have some clue on different countries requirements for cars and some about Mazda as a company. Mazda has made total cars for Ford without using their nameplate at all and other perhaps! Hard to know all the crap.


This car is newer than I expect you could fake repairs that would really work and last so the real hunt for you is going to be find the right place and person plus handle getting it there and how paying for it?!!?


It's hard enough in US and Canada much the same cars and parts.


So if you don't see something visual and parts available the burden is now who and where for you.


Off topic: I'd be lost with a right hand drive car (didn't search that I just think Kenya is that) from the get go NONE of which should be part of the fix for this car though.


Good luck, Tom







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