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07-03-2009, 10:39 AM
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#1 |
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Modded Moderator
Drives: 07 Toyota Yaris, 71 Galaxie Join Date: Mar 2007
Location: Wenatchee, WA
Posts: 3,670
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If you didn't disconnect the negative terminal when you installed the intake that can throw a CEL. Un-hook the negative terminal for a while, it will reset your ECU.
No need to knock the K&N intake guys! 
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07-04-2009, 03:32 AM
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#2 | |
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Mr. 155 and climbing
Drives: Seriously Modded 07 Sedan Join Date: Jun 2006
Location: In The Hotbox
Posts: 4,742
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Quote:
not knocking the company, just saying that it seems like with the imports they do not put the priority on the R&D like they do for the domestics. K&N makes a hell of a good product.
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Team Tiamat Racing on Facebook Youtube Channel: Team Tiamat Racing Class record holder in Land Speed @ 154.5mph for 1.5 mile and 145.5mph in the mile in the F (2.016 to 3.014 L), G (1.524 to 2.015 L), and H (1.016 to 1.523 L) classes. |
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07-03-2009, 03:14 PM
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#3 |
 
Drives: Yaris Join Date: Apr 2009
Location: USA
Posts: 355
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CAI's on these cars are such a waste of money. There is nothing to gain and everything to lose.
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07-03-2009, 05:24 PM
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#4 |
Drives: 2010 Matrix Join Date: Feb 2009
Location: Spokane, Wa
Posts: 78
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Same thing happened on my yaris but with a fujita. Took it to the dealer twice and they replaced my maf. still continued to do it so I removed it and sold it. Went back to stock now and I've had no more cels.Good Luck.
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07-06-2009, 04:20 PM
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#5 |
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Creeper-
No I did not disconnect the battery. I will try that tonight. MUSKOKA800- It is advertised as being for the 2009 Yaris and when I talked to their techs, none mentioned that it was not designed for it. Update (if you are interested) Yesterday, the light was not on. So, I thought all was good amd K&N knew what they were talking about. Until this morning, driving to work, it came on after I gave it a little more gas then usual. Also, the car (AT) started idling really rough (again) in gear with the brake on, like it might stall, but idles nromally if in neutral.
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07-07-2009, 11:41 AM
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#6 |
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I disconnected the battery, negative side, for 45 minutes last night. Test drove and everthing seemed fine, but this morning on the way to work the check engine light came on again, after the engine warmed up. I guess this weekend I will do a re-install on the CAI and hope. The CEL was a P0171. Maybe the sensor has some oil on it from the filter, but I did not add any oil, just installed it straight from the packaging.
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07-07-2009, 01:48 PM
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#7 |
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Modded Moderator
Drives: 07 Toyota Yaris, 71 Galaxie Join Date: Mar 2007
Location: Wenatchee, WA
Posts: 3,670
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Is it possible you might have damaged the Mass Airflow Sensor? Or could it be attached wrong?
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07-07-2009, 04:06 PM
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#8 |
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I will check MAS, but if I remember correctly it can only be installed one way.
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07-07-2009, 06:27 PM
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#9 |
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Drives: Yaris Join Date: Apr 2009
Location: USA
Posts: 355
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Revert to stock and be happy....
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05-04-2010, 09:43 PM
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#10 |
 Drives: 2D Grey Hatchback Join Date: Dec 2009
Location: NY
Posts: 4
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Yeah I put the Typhoon in my '08. It runs great but got the CEL with a P0101 code for MAF/VAF circuit range performance fault. Going to call K&N tomorrow.
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