browndg

Ok guys I need some help.
My truck will buck some times, meaning it will sort of stall under throttle, most of the time it is under heavy throttle. I have elimanated the fuel filter,and the air filter as being the source ( both changed out). I notice when i change SW on the smarty it goes away for a while. I hope this make since, the bucking is annoying, ans sometimes it just goes away ??

No noticeable change in any of the gauges when it bucks, I have watch them closely, do you think this is in my programmer ?? it did it before the power puck was added.

MikeyB

Could be the same issue we are seeing on '03-04 models using the SMARTY with the timing cranked up. Try reducing the timing using the aftermarket injectors settings and see if the issue goes away.

MikeyB

browndg

I'll give this a shot, currenty timming is on 3, which setting shoud I be on with smarty tnt and stock injectors ??

MikeyB

If you're using TNT timing 3 try 4 to see if the issue goes away.

MikeyB

omaharam

And if that's not the issue, the answer to your question on the timing setting using stock injectors is 2.

browndg

Thanks guys, I will try both.