General HHR Discuss anything related to the Chevy HHR that doesnt seem to fit into the more specific categories below.

accelerates too much

Old Mar 23, 2019 | 07:42 PM
  #11  
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Thanks guys. Soonest I can try to clean TB is Wednesday. Still cold and maybe rain till then.
Old Mar 26, 2019 | 05:37 PM
  #12  
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Originally Posted by Greybeard999
Maybe it's the old drag racer in me, but I'm not seeing a problem here....
Yeah, really? People spend money to get this... LOL
Old Mar 30, 2019 | 03:39 PM
  #13  
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Changed spark plugs, oil, and cleaned throttle using Sea Foam Spray. Both sides. Was a somewhat dirty but I managed to clean about 95%.

But still accelerating too much. Same as before. Runs smooth but barely tap pedal and it goes. Also from stand still if I release the gas pedal without stepping on gas pedal it takes off a bit.

Torque at standstill.
Old Mar 30, 2019 | 04:02 PM
  #14  
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Seafoam spray??
Use the correct throttle body cleaner from CRC
Old Mar 30, 2019 | 04:42 PM
  #15  
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SeaFoam is OK it does not dissolve plastics.

Since it is "drive by wire" and you have no codes the only thing you can do is throw parts at it. Accel pedal, TB, ECM. Maybe check the connectors.
Old Mar 30, 2019 | 04:58 PM
  #16  
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I would also suggest lobotomy. Disconnect the negative terminal of the battery, press the brake to discharge stored voltage, and then re-connect and let everything re-learn. It will crank for a while before starting (normal), but it should re-learn both pedal and throttle body positions.

Those computers can only use what they know. If you make them reset, and see how it is now, it might just correct itself.
Old Mar 30, 2019 | 05:25 PM
  #17  
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Originally Posted by Blue_SS
I would also suggest lobotomy. Disconnect the negative terminal of the battery, press the brake to discharge stored voltage, and then re-connect and let everything re-learn. It will crank for a while before starting (normal), but it should re-learn both pedal and throttle body positions.

Those computers can only use what they know. If you make them reset, and see how it is now, it might just correct itself.
Will try tomorrow.
Old Mar 30, 2019 | 05:40 PM
  #18  
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As I instructed in post #9
Old Mar 30, 2019 | 06:11 PM
  #19  
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Originally Posted by Oldblue
As I instructed in post #9
Would pulling fuse #41 for a few minutes be the same as disconnecting the battery?
Old Mar 30, 2019 | 06:25 PM
  #20  
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Mentioning what fuse 41 was for, would really help.

But the answer would be NO anyways.

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