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

accelerates too much

Thread Tools
 
Search this Thread
 
Old 03-23-2019, 07:42 PM
  #11  
Member
Thread Starter
 
comandoed's Avatar
 
Join Date: 01-10-2019
Location: IL
Posts: 69
Thanks guys. Soonest I can try to clean TB is Wednesday. Still cold and maybe rain till then.
comandoed is offline  
Old 03-26-2019, 05:37 PM
  #12  
Senior Member
 
Blue_SS's Avatar
 
Join Date: 06-07-2011
Location: SE Mich
Posts: 2,180
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
Blue_SS is offline  
Old 03-30-2019, 03:39 PM
  #13  
Member
Thread Starter
 
comandoed's Avatar
 
Join Date: 01-10-2019
Location: IL
Posts: 69
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.
comandoed is offline  
Old 03-30-2019, 04:02 PM
  #14  
Administrator
 
Oldblue's Avatar
 
Join Date: 10-13-2011
Location: Welland,Ont Canada
Posts: 36,451
Seafoam spray??
Use the correct throttle body cleaner from CRC
Oldblue is offline  
Old 03-30-2019, 04:42 PM
  #15  
Technical Moderator
 
donbrew's Avatar
 
Join Date: 01-23-2009
Location: Fredericksburg, Virginia
Posts: 24,665
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.
donbrew is offline  
Old 03-30-2019, 04:58 PM
  #16  
Senior Member
 
Blue_SS's Avatar
 
Join Date: 06-07-2011
Location: SE Mich
Posts: 2,180
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.
Blue_SS is offline  
Old 03-30-2019, 05:25 PM
  #17  
Member
Thread Starter
 
comandoed's Avatar
 
Join Date: 01-10-2019
Location: IL
Posts: 69
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.
comandoed is offline  
Old 03-30-2019, 05:40 PM
  #18  
Administrator
 
Oldblue's Avatar
 
Join Date: 10-13-2011
Location: Welland,Ont Canada
Posts: 36,451
As I instructed in post #9
Oldblue is offline  
Old 03-30-2019, 06:11 PM
  #19  
Member
Thread Starter
 
comandoed's Avatar
 
Join Date: 01-10-2019
Location: IL
Posts: 69
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?
comandoed is offline  
Old 03-30-2019, 06:25 PM
  #20  
Platinum Member
 
whopper's Avatar
 
Join Date: 04-09-2006
Location: Vancouver, BC, Canada
Posts: 7,032
Mentioning what fuse 41 was for, would really help.

But the answer would be NO anyways.
whopper is offline  


Quick Reply: accelerates too much



All times are GMT -5. The time now is 05:28 AM.