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mendelson82 · 08-17-2009, 05:33 PM

Hey my name is mitch, and im completely new to this forum stuff. anyways, my problem is this. I just recently bought the K&N short ram cold air intake for the toyota camry 07 2.4L 4cyl and all of a sudden my engine is having misfire. I broke down on the side of the road when the check engine light came on and there was a horrible knocking in the engine. it was towed back to the dealership where i originally bought. they gave it back to me the next day saying that my #1 cylinders gap was completely closed. and that my engine was misfiring. they said they fixed the gap, but that the engine is going to continue to misfire because the ecu cant adjust to the massive amounts of air that the new intake is allowing in. so i had to put it back to stock so that they would look at it. the engine is still misfiring. does this sound like a problem caused by an air intake to anyone? i personally have had three different mechanics look at it and tell me there is no way an intake is going to cause the gap to close or let alone cause a misfire. K&N also told me that it doesnt sound right. so what should i do to make sure i dont get screwed? they now have my car but i get this wierd feeling they are just going to try to cover up the problem to save money and time. Please some one help me answer this problem. Thanks.

***TrailDust*** · 08-17-2009, 06:02 PM

Hi, Mitch, and welcome to Toyota Nation!

Let me move this thread over to the Gen 5 & 6 Camry forum so the people there can provide you with an answer. Oh, and don't be shy to search the forum too with any other questions you may have.

mendelson82 · 08-17-2009, 06:05 PM

thanks.

njerald · 08-17-2009, 06:33 PM

There is no more air entering the engine than before the intake was changed but the ECU thinks there is, if your mass air flow sensor is screwed up, not installed right or not installed at all.

??? There is no gap in cylinders???? spark plug????

Sounds like you didn't know what you were doing when you installed the intake, have no more knowledge now and that you screwed the installation up somehow.

Good luck. I love these stories..

mendelson82 · 08-17-2009, 06:41 PM

Hey, i followed the instructions to the "T". I'm telling you what the dealership told me. They said there was a gap that was completely closed and that they fixed the gap and now the spark plug was put back in and that it worked fine, and that the engine is misfiring due to the amount of air being taken in. I never claimed to know anything about cars you jerk. i was looking for answers and if i knew a lot about cars, which you obviously know nothing, i wouldn't be here asking for help. So unless you want to provide help and not smart ass remarks just don't respond.

njerald · 08-17-2009, 07:00 PM

You got your answer..................

thrawnis · 08-17-2009, 07:44 PM

Quote:

Originally Posted by mendelson82

Hey, i followed the instructions to the "T". I'm telling you what the dealership told me. They said there was a gap that was completely closed and that they fixed the gap and now the spark plug was put back in and that it worked fine, and that the engine is misfiring due to the amount of air being taken in. I never claimed to know anything about cars you jerk. i was looking for answers and if i knew a lot about cars, which you obviously know nothing, i wouldn't be here asking for help. So unless you want to provide help and not smart ass remarks just don't respond.

Relax man, njerald is just a smart-ass, but he does know what he is talking about (if you can decipher his sometimes unusual writing style). Most people just ignore him now.

With the stock intake, are you still experiencing the same level of noise/knocking? It sounds to me like the MAF sensor was damaged during the install of the K&N intake. Did the shop check to see if the MAF sensor was still intact?

BlackCamSe · 08-17-2009, 07:50 PM

sounds like a vacuum leak to me.

mendelson82 · 08-17-2009, 07:52 PM

I dont know. all they said is that the gap on the number one plug was completely closed so thay fixed the gap and cleaned the plug. the engine is now back to stock but the engine is still misfiring. K&N told me to go through the motions but they are working with me to get this settled. K&N said there should not have been any problem. anyways, toyota said they were going to hook it up to a scanner and see what pops up. is it possible that the intake damaged the MAF sensor with too much air? imm just really annoyed by such a simple modification on an engine that usually runs so well.

mendelson82 · 08-17-2009, 08:00 PM

well its at toyota now. they're saying i'll have an answer by tomorrow. What pisses me off is that i took the car in before all this for a hesitation in the acceloration awhile back. there is a pretty long pause in the over drive. I asked about a TSB and they said there was not one for my car. i honestly think the problem was already there, and that maybe the new air intake made it come out from hiding or made it worse.

davidsondude5196 · 08-17-2009, 11:20 PM

Quote:

Originally Posted by mendelson82

I dont know. all they said is that the gap on the number one plug was completely closed so thay fixed the gap and cleaned the plug. the engine is now back to stock but the engine is still misfiring. K&N told me to go through the motions but they are working with me to get this settled. K&N said there should not have been any problem. anyways, toyota said they were going to hook it up to a scanner and see what pops up. is it possible that the intake damaged the MAF sensor with too much air? imm just really annoyed by such a simple modification on an engine that usually runs so well.

No, too much air wouldn't damage the MAF. K&N Build their intakes to closely match the stock pipes, so im sure if you measure the tube where you attach the maf is somewhere around 2.5 inches, feeding the MAF the same amount of air as before. Therefore it wont throw off your rpms. When i was costume building my intake i had 3 in pipes and my maf wasn't ruined, so i know too much air wouldn't damage your maf. Too much air will only throwoff your maf, making you loose power at low rpms and sorta giving you more at high rpms, its not as good as it sounds tho, reduces acceleration by almost 2 seconds. Also tested myself. So maybe during the installation you dropped the maf? Or maybe installed it backwards? This could've damaged it. Also make sure there are no vacum leaks. Loss of air can also cause this.