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I always display EOT because it's a good way to tell when the engine is up to temp. Usually also display IPR, ICP, and volts. None of the fuel use stuff will be accurate until you calibrate it and only remains accurate if you stay in the same tune. P1211 can indicate a sticking or bad IPR.
I think the SGII is a great tool for the $$. I have not had a SEL light that it would not clear yet. I usually have: EOT, IPR, ICP, and BST for non towing. I will watch trans temp when towing.
ICP is the pressure in PSI shown by the sensor measuring HPOP output. If you program in the HPOP x-gauge it will show the same value but it won't display HPOP x-gauge and ICP on the same screen since they are duplicate values.
Here is my understanding of what you should see with stock tuning:
ICP should be 480-550 at idle and ~1800-2500 at WOT.
IPR is expressed in percent and should be 10-15% at idle and up to 65% at WOT.
ICP is the pressure in PSI shown by the sensor measuring HPOP output. If you program in the HPOP x-gauge it will show the same value but it won't display HPOP x-gauge and ICP on the same screen since they are duplicate values.
Here is my understanding of what you should see with stock tuning:
ICP should be 480-550 at idle and ~1800-2500 at WOT.
IPR is expressed in percent and should be 10-15% at idle and up to 65% at WOT.
I have been really watching those 2 numbers and at idle I am right in that range. Same with WOT but have seen it spike up to 3000 a few times. Thanks for the information. Now I have a baseline so if anything changes I am sure you all will here from me.
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