4l80 issues
#15
got to drive it today, still doing the same thing. I didnt try to shift it down into first at all, just drove it to my shop. seems like it stays in second for a long time, and when it does shift out, the convertor doesnt lock....
showing codes
P0740
P0785
P1860
showing codes
P0740
P0785
P1860
Last edited by Turbostude; Feb 4, 2015 at 05:04 PM.
#16
I know with relay method, the p0785 must be disabled, i think same story for the p1860. Ill have to look and make sure on that one. The p0740 i am unsure of though.
#17
I went in and deleted those DTC's, it will shift 1-2, but the 2-3 is sluggish and never goes into overdrive. Once in 3rd, it acts like the convertor is locking/unlocking, kinda like its slipping, or like its low on fluid. (Fluid is good) Are there other settings I need to change? I haven't done anything as far as the tune is concerned.
Last edited by Turbostude; Feb 7, 2015 at 04:07 PM.
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