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    Thread: Replaced head and now have electrical problems

    1. #1
      What's wrong with my car?
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      Replaced head and now have electrical problems

      Hello all, I just replaced the head on a 2011 and all went well, or so I thought. I cleaned or replaced all parts that had milk running through them. It seemed like it was going to end well when I went to start the car and it fired up. I let it idle for a minute and then gave it some gas only to hear a loud sucking and the car die. I figured out pretty quickly what the issue is. The throttle body plate is just barely moving. I have tested the wiring on basically everything connected the the system and what I have concluded is that the 2 wires for the motor both have 12 volts running through them. Anyone know if that is the computers way of putting the car in limp mode? There were other DTC's because I unplugged many of the sensors before realizing the head gasket was blown so I have several permanent codes that I don't think will go away until the car drives a few cycles, which it can't do until the throttle functions.
      One of the wires to the throttle motor is supposed to be a ground, is that correct? If that is correct and this isn't a way of the car being put into limp mode I will begin searching for the wiring problem. I will try just about anything at this point. If anyone has any ideas I am listening.



    2. #2
      What do you mean there's no turbo?
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      2011 Aveo has an electronic throttle body, so chances are is that its in limp mode. If you hear a sucking sound, it would most likely/hopefully be a vacuum leak causing said limp mode
      2004 Aveo beater car
      2005 Aveo LT. 5-speed beater car (DOA)

    3. #3
      What do you mean there's no turbo?
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      And what DTCs is the car throwing?
      2004 Aveo beater car
      2005 Aveo LT. 5-speed beater car (DOA)

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      mikeb@perezmm.com (01-31-2020)

    5. #4
      What's wrong with my car?
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      Quote Originally Posted by slayerized6 View Post
      And what DTCs is the car throwing?
      P0068
      P0113
      P0106
      P2101
      It would appear to be wiring or perhaps the computer. I put in a new MAP and MAF and cycled the engine 4 or 5 times and the codes won't go away and it won't go past 3500 RPM's. I did the factory relearn and and it actually idled better but that is all.

    6. #5
      What's wrong with my car?
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      P0068, p0113, p0106, p2101. Replaced the MAP, MAF and throttle body. I'm thinking it is wiring or possibly the computer. I have cycled it about a half dozen times. It idles well and I did the factory reset and it idles even better now, but won't go above 3500 RPM,s.





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