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2006 Trialblazer SS LS2

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06 Mar 2019 21:35 #27640 by FMG
2006 Trialblazer SS LS2 was created by FMG
this all started with a reduced power stability trac/traction control on the IPC replaced throttle body had hardstarting issues disconnected throttle body harness started right up no issues til 2 days later hardstarting issues tried tb relearn not sure if i relearned it correctly hard start again unpluged harness plugged in started up check 4 codes 2176 low idle not learned went to output components on modis selected idle relearn showed relearn top right corner not sure if i did it right tried toggling tb% from 0%-100% hard start r&i harness started up 2 days later different symtom same ipc messeges no crank this time r&i harness no crank disconnected - bat cable 1 minute started up.what am i doing wrong?

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  • chief eaglebear
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07 Mar 2019 13:12 #27644 by chief eaglebear
Replied by chief eaglebear on topic 2006 Trialblazer SS LS2
hi sir not to experienced but the fact that you unplug tps and it starts up might tell us it is in limp home mode there are no codes so we are in the dark but we don't have to stay there lol I will attempt to help

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09 Mar 2019 14:57 - 11 Mar 2019 21:32 #27691 by FMG
Replied by FMG on topic 2006 Trialblazer SS LS2
I have codes now.P0050,P0103,P01516,P02119,P02176. tried relearn not succesful have additonal code P02101
Last edit: 11 Mar 2019 21:32 by FMG. Reason: new info

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15 Mar 2019 11:03 #27843 by Doc n2mx
Replied by Doc n2mx on topic 2006 Trialblazer SS LS2
HI.
I think you need to clean the throttle body and do a relearn with a good scan tool.
Every thing you stated is just how they act.


Use a GM clean kit or equivalent Don t spray cleaner into the bore spray it on a rag and clean the bore and plate.

Good Luck
Doc

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19 Mar 2019 18:29 #27925 by FMG
Replied by FMG on topic 2006 Trialblazer SS LS2
Even if it's a new throttle body?

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