Error code P2441 Taco 2012 2TR 2.7L

Maybe because all of the other shit you described is a little more visible to spot in the resale market. On the other hand, a engine with less than 2500mi and will most likely NEVER be taken care of to Toyota specs. And if the engine is put back to oem specs visibly before resale and the rest of the truck is oem then all of the mileage of running lean ( or whatever condition ) the truck engine is at right now plus the heavy foot of the driver with all of this bullshit on it ( because now he has a bangin 4banger ) that makes it that much worse.

Any modded vehicle in the resale market can be a nightmare no matter how well done the modder thinks he did at making it a sooper dooper ride.

 

IMO, it just makes zero sense to buy a brand new 4cyl and try to make more HP with aftermarket add on's when there are so many other choices out there to get your HP from.

 

Noboby with any sense is trying to get anything more than a small bump on HP and/or mpg or noise with any add-ons on the 4cyl. Anyone who is is kidding themselves. I'd love it if Toyota would offer a reg cab with a v-6...or how about a TRD SC for the 2.7. Would those be spec enough? Just because you do a few bolt-ons doesn't mean you're out there flogging the shit out of it like it is all of a sudden some kind of 800hp trophy truck.....at least anyone with any sense. I will agree about the decreased longevity & performance of running around with any CEL and ignoring it.

 

A regular cab w/V-6 or a TRD S/C for a 2.7L would be spec enough for me.

The op is the one who said he ran the truck hard after the install of this stuff.

Bottom line is these engines just like every engine from every manufacturer has been designed to run at it's optimum at specs that it is set at from the factory. There may be more HP, mpg etc in the engine at different specs but at the cost of long term durability of said engine.

I trust the engineers at Toyota more than I trust the engineers at DT or whatever company when it comes to my Toyota engine.

 

Your right DD, I haven't added anything to help the op and don't plan on it.

My debate with tacoprerunner has just been about the affect of aftermarket add ons to a brand new truck engine and long term affects.

 

I really have no issue with modding a vehicle. I just seem to prefer to do cosmetic things on a brand new vehicle or one that has at least a really good warranty left on it.

I have never been able to wrap my head around doing mechanical mods to new vehicles. I can remember my uncle who had many hot rods in the late 60's & early 70's telling me stories. His friend bought a new Z-28 and drove it two miles home and started tearing the engine apart. The next model year my uncle did the same to a split bumper Z-28.....WTF? Of course my uncle also knew where to draw the line when it came to his YENKO and COPO.

JUst me I guess!

 

I have been trying to wrap my head around these numbers, and they just don't seem to be working. a 10.9:1 ratio is richer than normal. A 5% richer correction would be going the wrong way. A 10.9:1 is almost 30% rich! That is so rich that I would think the engine would not run at all.

As for octane rating, that is not going to affect the AF ratio. AF ratio is measured in physical units, not chemical composition units. You can go from 87 to 100 octane and it won't make a difference in the AF ratio.

 

10.9:1, he's running slobbering rich.
That's almost rich enough to run pure Ethanol.

 

Serious oil dilution if it's really at 10:1

That rich, I'm not sure the cat will get hot enough to light off.


OP, smell your dipstick... does it smell like fuel?

 

The debate over the merits of modding and opinions related to the holy grail of oem spec are neither here nor there. The CEL sucks, the reported AFR sucks. Find out whatever is causing it and fix it.

 

Hey folks,

THe CEL came on again of coarse. I talked to a fellow hot rodder with '69 409 camero, and he did note that the AFr and other high end cold air intakes will throw the check engine light.

Anyways, I spent 2.5 hrs putting back the stock intake. I'm going to clear the check engine light and see what happens. I do need a new hose, and want to make sure I got the correct screws to mount the intake onto the engine (going back to toyota for this). I think I'll have all the parts but want to make sure.

If I find that's the case, I'm going to debate what to do. I guess the main point I gathered is the mixture that I'm running is not so good for the Cats? Would unplugging cats do anything?

 

Since my last reporting error, I am wondering what to do next. I went and removed the cold air intake. The check engine light no appears.

However I am still getting the error code. Should I still be concerned?

I took the truck to toyota today, and they told me that the secondary air switching to head pipe gasket incorrectly installed. This was corrected, but still getting error code. Going back to the dealer tomorrow to ask for advice.

 

Some codes will remain in memory until after "x" number of restart cycles without recurrence of the fault... but those will be cleared if you reset the codes.
Some codes need to fault "x" number of times before they will drive the CEL.

 

So, I'm no proffesional but I've heard that if you throw in an oil filter, the intake will suck in some oil and will coat the MAF sensor. You said you changed your intake back to stock, but is there perhaps some oil on your MAF? My brother put an oil drop in in his audi and it triggered a code. He swapped out his filter, cleaned his MAF and his code went away.

 

That's not common on new systems, unless the installer added more oil to the filter.
The filters are pre-oiled from the factory and don't need more.
The common problem is when the filter is cleaned and oiled... it is easy to put too much oil on, which will foul the MAF.

SOME intake designs will throw a code when installed due to the airflow changes, but the codes the OP has are not the typical MAF codes.

 

You sound like you've had a Subie WRX before! lol

 

Threw back on the cold air.intake today. Don't care about check engine light now. Because the cel did not come on with headers only with muffler. Glad the dealer did helped figuring it out regaurding the header. They fixed gasket supposedly that was improply installed was blocking air pump flow.

I know now everything is successful and have piece of mind.

I have an Afe dry filter. No oil!

 

You want people to help you around here you should be courteous. Come on here asking a question expect different answers, no need to get your panties in a knot over it.