CEL #2187--any ideas?

[drledford93]

Hey guys,

Ok, so I was starting up my car after driving it this afternoon (been stopped ~20 minutes), and it throws a CEL. After taking it to Autozone, it shows #2187, but belonging to VW, not Mazda. I just want to check with you guys to see what you think.

The definition that was given for the CEL was "System Too Lean at Idle, Bank 1".

I do have a home-made CAI (see Redspeed's how to), but have had it on now for 2 weeks with no problems. I don't see how this may be the culprit as nothing has changed (yes, I did check out the intake).

Any ideas are appreciated!

Daniel

 

[Craighjr]

Your intake, I get that from the oversize MS CAI and Standback. Told you it would happen eventually. What ID size maf housing are you using?

Edit I though you dropped this gem in my thread

I run a huge cai, bigger diameter than the mazdaspeed for sure, and my AFR's are fine and i dont have a lean code.

 

[Sierra117]

So here is my question. CAI from Mazdaspeed, the one that they sell through the dealership for the car and such, throws a lean code. What the hell are we supposed to do. I don't really feel like spending another 300 bucks on another intake, and I just shipped off my stock airbox.

 

[Craighjr]

So here is my question. CAI from Mazdaspeed, the one that they sell through the dealership for the car and such, throws a lean code. What the hell are we supposed to do. I don't really feel like spending another 300 bucks on another intake, and I just shipped off my stock airbox.

No the MS CAI is good alone. I added a Standback which leans the car out more. After my TBE I wanted to control my boost better so I bought a standback and made more headaches for now. I am in the process of doing my research and buying a new intake that will work with my FMIC and Standback.

 

[Sierra117]

What about other bolt ons...I.E. Downpipe and Midpipe?

[sorry for the hijack]

 

[bmman93]

i like how that code comes back a vw code mine was doing that too!

 

[drledford93]

Craig,

That wasn't me. [I'm not Nig3...] The diameter of this housing is exactly the same as the MS CAI. I ran this for 3 weeks before this decided to throw a CEL. Redspeed's been running his for 6+ months! It was cold out today, maybe that had something to do with it.

You know what, something else happened today--I was really low on gas this morning, and when I started it, it immediately died. Then, I started it again, and it ran. It was later on in the day that the CEL came on. Could that be it??

Daniel

 

[sleeper3]

codes are shared on most OBDII test ports if I'm not mistaken. that's the whole point of standardization. I would assume a code as simple as a lean code would definitely be shared. funny that it's "bank 1" as we only have 1 bank of cylinders lol.

anyhoo, I would take my vehicle in if I were you. the intake should have nothing to do with a lean code, as the sensor responsible for throwing this code is your upstream O2 sensor on the exhaust side. since your MAF meter has not been futzed with, it is metering air correctly. Something else is going on.

 

[sleeper3]

oh I just saw your last post. when I was working out in the shop, we'd get cars in with lean codes because they ran the gas all the way out. you're still under warranty, right? just take it in.

also, are you now saying that your MAF housing is a different diameter than stock? the mazdaspeed one is.

 

[Craighjr]

Craig,

That wasn't me. [I'm not Nig3...] The diameter of this housing is exactly the same as the MS CAI. I ran this for 3 weeks before this decided to throw a CEL. Redspeed's been running his for 6+ months! It was cold out today, maybe that had something to do with it.

You know what, something else happened today--I was really low on gas this morning, and when I started it, it immediately died. Then, I started it again, and it ran. It was later on in the day that the CEL came on. Could that be it??

Daniel

Yeah I edited that when I saw I was wrong from my thread. Running out of gas would be lean so maybe. It takes 2 instances to set a code so maybe it starved around a corner also but it would have to be disaterously low on gas. Did you measure your intake tube? I have a thread going about the intake in the engine section. If anything there was talk of shutter valve problems causing this code on other models of Mazdas. That is why I have a stock air box on now because I can not stop this code from popping up with my mods.

 

[sleeper3]

ah HA

on further research, I found this bulletin:

http://www.finishlineperformance.com/mazda3/docs/0033.pdf

it's not for the speed, but it is for the 2.3, so I'm sure there is one out for our car. since it is a bulletin and not a recall, they won't actively persue you to get the work done. they'll only do it if they see you in service. looks like you have an intermittantly malfunctioning purge solenoid valve.

 

[sleeper3]

oh the last part means "vacuum leak"

 

[drledford93]

also, are you now saying that your MAF housing is a different diameter than stock? the mazdaspeed one is.

It's the same diameter as the MS CAI.

I'd really like to stay away from the stealership, if at all possible. They don't like me too much. They're really anal.

Edit: I just saw your last post--looks like next week I get to take off my CAI and put my stock airbox back on for a trip to the dealer!

 

[sleeper3]

dude why wouldn't a "stealership" want free work? they get PAID to do warranty work. it's not like they're looking for a reason not to do it.

 

[drledford93]

I see your point. However, they try to pin stuff (even with TSBs) on me. They tried to do that with a K&N drop in filter. I think it's just this dealership. They're kinda notorious.

 

[sleeper3]

that doesn't make any sense to me. dealerships get paid by the factory to do warranty work. it's not like anyone from the factory is looking under your hood at anything. they should be trying to sneak stuff by to get it covered. maybe they've been caught by the factory for something like that before, or maybe they do too much warranty work and the factory is already raising an eyebrow. hard to tell, but it sounds strange. anyway, good luck!

 

[Craighjr]

that doesn't make any sense to me. dealerships get paid by the factory to do warranty work. it's not like anyone from the factory is looking under your hood at anything. they should be trying to sneak stuff by to get it covered. maybe they've been caught by the factory for something like that before, or maybe they do too much warranty work and the factory is already raising an eyebrow. hard to tell, but it sounds strange. anyway, good luck!

Dealerships love to doop the customer. Simple as that. If your intake is the problem they will bounce the diag from Mazda pays to you paying so fast it isn't funny. At Ford we used to get .6 diag from warranty if a concern was a cash issue that jumped to 1.6 for the same diag.

 

[vdawg2344]

I have a vibrant DP back exhaust and after I installed it i got a CEL about 2 weeks later. I took it to the dealer and they said it was due to the "recall". So they reflashed the PCM and the following day I get a CEL again. I took it back in and they said its a lean code which I was not surprised. Others have said that the new flash makes the car run more lean. So anyway the dealer says I may have gotten a bad tank of gas. Yea right! I was low on gas though.

I have not gotten A CEL since (3 days). Its cold here though.

 

[redspeed]

I see your point. However, they try to pin stuff (even with TSBs) on me. They tried to do that with a K&N drop in filter. I think it's just this dealership. They're kinda notorious.

Hey drledford, my advice, put the stock air box and take to the stealership for the recall, I had to do the same thing. If you already did the recall or your ms3 don't need it, disconnect the battery for more than 5 min, reconnect battery and put some damn gas on you ride lol.

This newer cars are really sensitive, so don't let it go below 1/4 tank.

 

[speedi3]

Dealerships love to doop the customer. Simple as that. If your intake is the problem they will bounce the diag from Mazda pays to you paying so fast it isn't funny. At Ford we used to get .6 diag from warranty if a concern was a cash issue that jumped to 1.6 for the same diag.

Did the Cobb SRI solve the CEL. I just put on my CBE and got the p2187.