[txjeep]

Drove the 1000 miles home. Love the hvy tow tune. The truck ran great and pulled my trailer extremely well. Got 11 mpg too, which I thought was pretty good. However, the check engine light was on for about 800 of those miles, and I assume it is the same p1211 code causing it. There is no sign of a problem except for the light. My concern is whether or not I should ignore the light when towing or if I need to get a bigger oil pump (my FIL tells me the Adrenaline is the one to get). I don't want the pump if I don't need it, but don't mind buying it if I do. If I was running a 100+ HP tune and flooring it, I would not be too surprised at getting this code. However, I have been using the 25HP? hvy tow program to pull my big travel trailer. EGTs were peaking at 1200 sometimes on the hills, so it was working pretty hard. Boost was up around 12-15Lbs on the longer pulls. Only about 1/3rd of the drive had hills though. The rest was pretty flat, and the engine was not working too hard to maintain speed. The light came on both times in the hilly areas.

Questions:
1) My first question is, when towing 9500Lbs up hills, would the hvy tow program ever call for more oil than a normally functioning OEM HPOP could give?

2) Secondly, I am wondering if the check engine light should go off once the code condition goes away (this is a 2003), or if it has to be reset every time. The light was on after sitting overnight as well.

Edit: One more question. If I get a bigger HPOP, and keep the stock injectors, do I need to have my chip reburned?

Any help or suggestions would be appreciated.

Thanks!