idle surging from timing glitch - HPT
02-01-2016, 11:29 AM
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idle surging from timing glitch - HPT been working on this pain in the *** idle surge. Its apparently caused by this timing glitch that drops to 1 to 2 degrees when I have all the maps intentionally set to 15 degrees to try and narrow down the problem. I even changed the high and low octane maps to 15 just to cover all bases. I even zero'd the over and under speed maps to zero and its still the same. any help would be really appreciated. gen 3 6.0 engine with manual set trans. not sure if its related but the engine also hits a wall at 3k rpm only in drive and bounces like its hitting a limiter of some sort.
here is a short log of what its doing along with my tune
here is a short log of what its doing along with my tune
02-01-2016, 01:01 PM
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I there a reason your throttle position sensor is showing 18%?
you're not in the idle tables if this is what the computer thinks you are running. You'll need to get your TPS reading 0% at idle before you can fix anything else.
the TPS volts aren't logged. do you know what voltage you have the TPS set to?
you're not in the idle tables if this is what the computer thinks you are running. You'll need to get your TPS reading 0% at idle before you can fix anything else.
the TPS volts aren't logged. do you know what voltage you have the TPS set to?
02-01-2016, 09:18 PM
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I there a reason your throttle position sensor is showing 18%?
you're not in the idle tables if this is what the computer thinks you are running. You'll need to get your TPS reading 0% at idle before you can fix anything else.
the TPS volts aren't logged. do you know what voltage you have the TPS set to?
you're not in the idle tables if this is what the computer thinks you are running. You'll need to get your TPS reading 0% at idle before you can fix anything else.
the TPS volts aren't logged. do you know what voltage you have the TPS set to?
02-02-2016, 09:12 PM
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02-03-2016, 11:34 AM
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fixed it. zero'd the idle area of the base retard in the knock retard attack section. I think it may have been picking up alittle noise from the piston slap from having forged pistons.