Running rough after stereo install - Toyota Yaris Forums

Kss0x00 · 02-23-2021, 09:47 AM

I recently installed an after market (Chinese 7010b) stereo in my girlfriends 09 yaris which now seems to be idling a little rough and she says the steering is randomly "really tight"/ hard to turn the wheel. I wired the stereo according to the diagram, but there was a third connector plugged into the back of the OEM stereo that I can't find reference to anywhere (connector had 5 wires of about 20 possible openings for wires) that i just left disconnected. Car is manual transmission if that matters.

Is there anything related to the stereo that would cause these issues? Or does anyone have any troubleshooting ideas?

TIA

WeeYari · 02-23-2021, 10:14 AM

Did you have the battery disconnected while doing the install?

Kss0x00 · 02-23-2021, 10:22 AM

Yes the battery was disconnected. The instructions said to disconnect the negative terminal, but I completely disconnected it.

WeeYari · 02-23-2021, 10:44 AM

In that case, the ECU must go through a relearning process to restore fuel and engine management settings. This requires nothing more than driving the vehicle. Eventually it will settle down to normal operation.

ern-diz · 02-23-2021, 04:29 PM

Wondering if grounding is an issue. When it is, the steering issue you described can be present...

remcafee · 02-23-2021, 10:40 PM

alternator could of gotten a little weaker with the stereo install

Leegamer · 02-24-2021, 12:49 PM

Quote:

Originally Posted by ern-diz

Wondering if grounding is an issue. When it is, the steering issue you described can be present...

I had a similar issue with my steering, it would get really tight as you approach lock and I finally noticed once I hit full lock the car would start to cut off for a second. The car was also running more and more rough.

When I started looking into it I had a lot of corrosion on the battery terminals. I cleaned them thoroughly and resolved both issues immediately.

_S7V7N_ · 02-26-2021, 11:03 PM

I have an 07 Sedan, manual transmission, same idle issue happens to me when I disconnect my battery, usually fixes up after a few hours, just drive cautiously, the car could turn off on you till the computer resets itself

02-23-2021, 09:47 AM	#1
Kss0x00 Drives: 2009 yaris hatchback Join Date: Feb 2021 Location: Alabama Posts: 2	Running rough after stereo install I recently installed an after market (Chinese 7010b) stereo in my girlfriends 09 yaris which now seems to be idling a little rough and she says the steering is randomly "really tight"/ hard to turn the wheel. I wired the stereo according to the diagram, but there was a third connector plugged into the back of the OEM stereo that I can't find reference to anywhere (connector had 5 wires of about 20 possible openings for wires) that i just left disconnected. Car is manual transmission if that matters. Is there anything related to the stereo that would cause these issues? Or does anyone have any troubleshooting ideas? TIA

02-23-2021, 10:14 AM	#2
WeeYari View User's Garage Drives: 06 Polar White 5dr, 13 Soul 4u Join Date: Oct 2008 Location: Georgetown, Ontario, Canada Posts: 5,740	Did you have the battery disconnected while doing the install? __________________

02-23-2021, 10:44 AM	#4
WeeYari View User's Garage Drives: 06 Polar White 5dr, 13 Soul 4u Join Date: Oct 2008 Location: Georgetown, Ontario, Canada Posts: 5,740	In that case, the ECU must go through a relearning process to restore fuel and engine management settings. This requires nothing more than driving the vehicle. Eventually it will settle down to normal operation. __________________

02-23-2021, 04:29 PM	#5
ern-diz View User's Garage Drives: 2007 Liftback Join Date: Sep 2007 Location: CA all day Posts: 3,794	Wondering if grounding is an issue. When it is, the steering issue you described can be present... __________________ On Instagram On Wheelwell

02-26-2021, 11:03 PM	#8
_S7V7N_ Drives: Yaris 4 Door Sedan Join Date: Dec 2008 Location: South Texas Posts: 805	I have an 07 Sedan, manual transmission, same idle issue happens to me when I disconnect my battery, usually fixes up after a few hours, just drive cautiously, the car could turn off on you till the computer resets itself __________________ 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

02-23-2021, 10:22 AM	#3
Kss0x00 Drives: 2009 yaris hatchback Join Date: Feb 2021 Location: Alabama Posts: 2	Yes the battery was disconnected. The instructions said to disconnect the negative terminal, but I completely disconnected it.

02-23-2021, 10:40 PM	#6
remcafee Drives: 2007 Toyota Yaris 3 door Join Date: Sep 2018 Location: Arizona Posts: 403	alternator could of gotten a little weaker with the stereo install

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