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doutlaw
21st July, 2021, 03:22 PM
Hi Guys,

Got a Chevrolet Aveo with a strange problem.

4 times out 5 that i start the car it idles around 2000rpm and wont responding to the throttle pedal.
The 1 time it starts fine it stays fine, even after a very long drive (unless i shut it off and turn it back on).

Fault code is
P2106 Throttle Control System Performance -throttle limitation active.

I replaced throttle body as on of the 4 brushes was burnt.
Checked throttle pedal, Found nothing wrong.
Checked TB harness and connection. OK.
Replaced battery (same issue).

Do you think its a software issue from ECU? the occurrence of this fault looks to strange to me.

I made a back up of eeprom and flash using Ktag. But It just wont let me write any of the stand alone files (I get 'operation not allowed').
I need to make a full restore in order to write (and like this i can only put my original files unless some one can prove a file).

elektronik325
22nd July, 2021, 07:29 AM
Hi. Have you tried to do a throttle adaptation? Because it may have old values from damaged. And check the collector for leaks. Once upon a time in Aveo. Well, check the parameters of the pedal and throttle in this moment, if it does not work, are they the same as then, which is ok.

fady eid
23rd July, 2021, 03:41 PM
check the brake pedal switch , also do throotle adapt