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04-28-2011, 11:17 AM | #1 |
Drives: 2008 Yaris Sedan Join Date: Oct 2008
Location: Edmonton
Posts: 393
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horrible idle / engine shake after car audio install
So last night I was looking for something to do and i found some old audio equipment, which I decided to install in my wife's yaris.
1) 4channel ampline amp mrv-something -- powering the factory speakers (extremely low gain) 1) 2channel low-end rock fosgate amp bridged powering 1 10" rockford fosgate subwoofer When I hooked this all up, the car starts to shake terribly when in drive and holding the brake. if i open the hood, the engine is violently shaking back and forth. It doesnt seem to happen in park or neutral, only in Drive when the brakes or ebrake are engaged. Any suggestions? |
04-29-2011, 07:39 AM | #2 |
Drives: 2009 3dr LB Manual Join Date: Mar 2010
Location: Dublin, Ohio
Posts: 412
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Did you take anything apart? Did you remember to tighten the battery bolts down? Did you knock any sensors loose? Unplug any engine sensors? Knock any hoses loose? Does it do it when the stereo is off? Trying first to see if it has anything to do with stereo, and not some other problem that just so happen to come up. :-)
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04-29-2011, 08:48 AM | #3 |
Captain Slow
Drives: '08 1.5 hatchback Join Date: Dec 2008
Location: Jakarta
Posts: 145
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i think you should check the electricity system,especially the spark plugs coil. CMIIW
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04-29-2011, 10:42 AM | #4 |
advocatus diaboli
Drives: 07 Yaris hatch Join Date: Mar 2011
Location: San Jacinto California
Posts: 1,126
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After you inspect everything for mistakes, try a ground kit, DIY or Ebay for about 20.00...it can't hurt.
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04-30-2011, 01:01 PM | #5 |
Do you still have the stock battery ?
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Audio is under Construction Kenwood KDC-X794 Hifonics Zeus ZXI6.5C 6.5-Inch 2-Way Component Speaker System - AUTOTEK ATX65CX 6.5-Inch Hifonics BXi 1210D - Crunch PowerZone P1400.4 (2)12 inch Kicker CVR's - 0 gauge from battery to Distribution block - 4 Gauge Power/Grounds to amps - Duralast Yellow Top - Big 3 |
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09-11-2011, 01:50 AM | #6 |
Drives: 2005 'Silver lining' Yaris YRS Join Date: Jul 2010
Location: melbourne, straya
Posts: 14
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I am having the same problem after disconnecting the battery before inspecting the factory speaker setup. I have absolutely no mods or changes to the stereo or electricals.
Would I be right in thinking it's just the engine management software having forgotten it's settings? Is it just a matter of time before it corrects itself? Cheers. |
09-11-2011, 08:39 AM | #7 |
toyota
Drives: 2007 Yaris RS Blazed Join Date: Oct 2006
Location: toronto, canada
Posts: 3,637
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Bet it's the air fuel mixture that the ecu have to get use to.. 20 minutes drive fixes it
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If my calculations are correct, when this baby hits eighty-eight miles per hour... you're gonna see some serious shit!!!!!! "Horsepower is how fast you hit the object. Torque is how far you move that object.." |
09-11-2011, 12:42 PM | #8 |
Drives: 2007 Yaris Sedan Join Date: Apr 2009
Location: CT
Posts: 272
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After they disconnected my battery during a repair.
My 2007 had to relearn the characteristics of the car and did run poorly at first. Though I never got any violent engine shakes. |
03-02-2012, 11:03 AM | #9 |
Drives: 2008 Yaris Sedan Join Date: Oct 2008
Location: Edmonton
Posts: 393
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^ i took apart the intake and thoroughly cleaned it and the MAF. once i put it back together and reset the ECU everything seems to be fine. I guess it was just a coincidence that it happened right when we installed the stereo.
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