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Old 01-04-2009, 06:38 PM
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The TPS reading only from 13%-83% is a scanner issue. I don't know if the PIDS are the same between HP Tuners and EFILive but, in EFILive you need to scan GM.ETCTP to get the correct readings.
Old 01-05-2009, 08:04 AM
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Originally Posted by white1
Thanks, I had kinda run that thought across my head, but it started on bank 1 which I never had any problems with, it did occur right after (same day) I replaced the sensor on bank 2, just recently did I start getting both. I got up to 20.18MPG on a trip this week, if Im getting that in open loop, I can deal with the SES just being turned off

I can turn off the report for the 1133/53 with hpt, but i am concerned there may be a
condition, lazy 02's, that may effect performance and fuel milage,
if i turn off the error report how does the pcm deal with the 02's,
does it still read the 02 data,
does it still try and adjust for lazy reading or go into closed loop or what.
what is the correct operating condtion open or closed loop

this stuff is a little beyond my understanding.
Old 01-05-2009, 08:51 AM
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Originally Posted by Allgonoshow
I can turn off the report for the 1133/53 with hpt, but i am concerned there may be a
condition, lazy 02's, that may effect performance and fuel milage,
if i turn off the error report how does the pcm deal with the 02's,
does it still read the 02 data,
does it still try and adjust for lazy reading or go into closed loop or what.
what is the correct operating condtion open or closed loop

this stuff is a little beyond my understanding.
I set the SES light not to illuminate, it still reads the codes. Like I said, getting 20+ MPG at 80MPH is fine for me
Old 01-05-2009, 08:59 AM
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Originally Posted by white1
I set the SES light not to illuminate, it still reads the codes. Like I said, getting 20+ MPG at 80MPH is fine for me

Cool can't hurt to try it for a while.
normal is open or closed loop???
i can check with scanner on road test
Old 01-05-2009, 01:11 PM
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Originally Posted by Allgonoshow
Cool can't hurt to try it for a while.
normal is open or closed loop???
i can check with scanner on road test
If Im not mistaken, when you crank it, it runs in open loop until it reaches operating temp, then it goes into closed loop. That may be backwards though
Old 01-05-2009, 02:44 PM
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Originally Posted by white1
If Im not mistaken, when you crank it, it runs in open loop until it reaches operating temp, then it goes into closed loop. That may be backwards though
Cool again,
i am at 10.5 mpg so i have got an issue
Old 01-05-2009, 02:49 PM
  #17  
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Originally Posted by white1
If Im not mistaken, when you crank it, it runs in open loop until it reaches operating temp, then it goes into closed loop. That may be backwards though
That's right.
Old 01-05-2009, 03:00 PM
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talked to my tuner finally,
there is absolutely no downside to turning the report off for those codes,
02's fully functional just don't report an error.
start up -open loop
operating temp - closed loop

how do you spell relief........

i'm a worrywart and i don't have a full understanding...hence concern

Last edited by Allgonoshow; 01-05-2009 at 04:11 PM.
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