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Mar 18, 2009, 09:52 AM
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#1
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Evolving Member
Personal Sales Rating: ( 1)
Join Date: May 2007
Location: Ontario
Posts: 115
Drives: 06 Ralliart AT
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Engine Light On After Intake
So when the injen CAI was installed on my car everything was fine. Then one day I decided to go through an automatic car wash, with an undercar wash. I came out of the car wash fine, and then went home for a bit. A few hours later I went for another ride to school and going up a hill pushed my car a bit hard... then suddently my car was struggling to get past 4000 RPM and then the engine light comes on...
After a few days it seems the car drives fine, but the light is still on... and ideas of how to fix this? Or the problem? I thought maybe just a bit of water got in... but its been 2 days now, and the light is still on.
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Mar 18, 2009, 10:02 AM
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#2
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Former Vendor
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Location: A.K.A. DaFarmer
Posts: 4,371
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Water got into something, and caused a misfire. Ecu picked it up. Shouldn't have anymore problems so long as you don't get water into whatever caused the issue. You should only mist the engine bay, not direct pressure.
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Mar 18, 2009, 10:07 AM
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#3
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Evolving Member
Personal Sales Rating: ( 6)
Join Date: Sep 2007
Location: Orange County, NY
Posts: 456
Drives: EVO VIII MR
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Yea water got into the intake and then the manifold causing misfire. Bring it to a shop and tell them to run a diagnostic and to have them clear the CEL, most shops won't even charge for it.
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Mar 18, 2009, 10:08 AM
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#4
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Evolving Member
Personal Sales Rating: ( 1)
Join Date: May 2007
Location: Ontario
Posts: 115
Drives: 06 Ralliart AT
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mist the engine bay? not sure what that means =/ what should i do to fix the sensor, or should i just wait it out some more?
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Mar 18, 2009, 01:39 PM
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#5
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Evolving Member
Personal Sales Rating: ( 1)
Join Date: May 2007
Location: Ontario
Posts: 115
Drives: 06 Ralliart AT
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okay so you guys were right. theres a misfire in cylinder 4... now what can i do to fix this?
Last edited by AznRico; Mar 18, 2009 at 03:22 PM.
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Mar 19, 2009, 02:07 AM
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#6
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Evolved Member
Personal Sales Rating: ( 1)
Join Date: Mar 2007
Location: Wytheville,VA
Posts: 880
Drives: 03 Mitsubishi Lancer Oz Rally, 04 Mitsubishi Lancer ES
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I don't know about fix, you can reset the ecu by unhooking the battery for like 45 min.
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Mar 19, 2009, 08:06 AM
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#7
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Evolving Member
Personal Sales Rating: ( 1)
Join Date: May 2007
Location: Ontario
Posts: 115
Drives: 06 Ralliart AT
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I did that once I got home from the garage, after resetting the ECU the engine light is off... however does this mean that the light isn't on but there still is a misfire?
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Mar 19, 2009, 08:11 AM
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#8
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Evolving Member
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Join Date: Aug 2004
Location: Canada
Posts: 376
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I wouldn't worry about the misfire code unless it comes back.
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Mar 19, 2009, 08:23 AM
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#9
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Evolving Member
Personal Sales Rating: ( 1)
Join Date: May 2007
Location: Ontario
Posts: 115
Drives: 06 Ralliart AT
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okay, I hope it doesn't... the reason I ask is because the car has pulses of harsh idling, so i thought maybe its still there
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Mar 25, 2009, 10:04 AM
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#10
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Evolving Member
Personal Sales Rating: ( 2)
Join Date: Nov 2007
Location: OHIO *419*
Posts: 157
Drives: As Fast As It Takes To Get Away
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Thats how my car is with my CAI it idles so horrible after my ECU reset.
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Mar 25, 2009, 10:06 AM
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#11
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If there is a misfire on cylinder 4 you can remove the spark plug and see if any water got in there.
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Mar 25, 2009, 10:41 AM
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#12
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Evolving Member
Personal Sales Rating: ( 1)
Join Date: May 2007
Location: Ontario
Posts: 115
Drives: 06 Ralliart AT
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well after the reset of the ECU the engine light is off, so i assume its gone!
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