p1218

[oldmechanic]

I have purchased a car code & have used it to read the tdco, it started at 1.58 after after using the koko procedure it is at -0.88 & ipt &iptd are both at 8.5
with engine at operating temp.now I get the dtc p1218 after I clear it will come back on shutdown & restart . I know I will need to move the ip to get tdco where it needs to be but need to know what is causing the dtc.Any thoughts will be appreciated

Thanks,OM

[JohnC]

-0.88 should not set a code. Are you sure you have a resistor on the PMD?

[oldmechanic]

yeah iirc it has a#5,after I reset the tdco it does seem to have more power but my fuel mileage has dropped to 13 mpg was getting around 15 before it has 4.11 gears & 265 16 tires
OM