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08-21-2015
I ran the Torque App vehicle test earlier and here are the results. Not sure what the failed tests are about and I searched online to no avail. Idle quality has been kind of rough for a while now and sometimes there is hesitation when I accelerate. Cylinder 4 has a random misfire here and there (Brand new plugs & wires). I just installed headers with a high flow cat and replaced both O2 sensors a few weeks back. Any ideas?
08-21-2015
No idea what any of that stuff means, phone apps are useless to me.
But I come from using real live data scanners in the shop I work in and my HP Tuners software.
As for the misfire, have you swapped a coil around yet or swapped over the ICM from a known running car just to test it and see if the misfire goes away?
08-21-2015
No not yet, I'm gonna play around with it tomorrow.
08-22-2015
I haven't run those tests before, I just look at misfires and LTFT's while the symptoms are going on to help determine the problem. You can trust phone apps if you have a descent phone. Most phones these days have more system resources and processing capabilities than a lot of computers do. If you don't have the phone loaded up with crap software to use up all the system resources, it can be trusted.
GMPP, Votland, Addco
08-23-2015
All this is, is the tests that the ECU runs to test the different systems.
This will help:
https://www.scantool.net/forum/index...3.0;attach=936
The link directly downloads.. its a PDF.
Are you getting a check engine light?
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