recalibrating injectors

at one time I had a 6 pack of inj put in. after installed my truck had more power. did not need to drop any gears on my run which was usually on 4 grades. it got better fuel mileage, but it smoked a lot more. if I were standing on the deck while idleing it would choke you. after about 13 months I had 1 of the inj go bad. it was dumping fuel into the oil real bad. went to my local shop, he put in new inj & set all to specs. my increase in power was gone, my m.p.g. went down, but the truck did not smoke. it ran better , but not faster. if you were 100 ft away from my truck you could not tell if it were running or not. I had no more prob with inj since. I wish I had the power back. the fuel mileage I can increase that by driving habits. it was hard to give up the power, but not worth it if it shortens the length of inj life. I was told the shop who put in the 6 pack changed codes to all .75

 

the steinbauer sight is unusable. have you actually tried to get info off websight? I had no luck.

 

I worked at a dealership and the best way to increase power is a fuel cooler, in the return line, in the winter, you make a cover for it.
As I said befor flatlanders will not have a problem with using the 75 code, but it does not guarantee power gain it just starts injection at the same time. I was a guild member, and took most every engine and electronics course on every brand.

 

There is a chance, that you could burn a piston from too much timing advance. The change of burning a piston is less with the low NOx tunes, but it is still possible. Not worth the risk. Also if there is any warranty, Detroit will deny it if the injectors trims are wrong.

 

Not trying to hijack this thread but could you elaborate a bit on the fuel cooler. I have read some and wondered about varios setups, but could you tell me what you have seen work? Thanks, Johnny

 

double post

 

The fuel that gets returned from the engine to the tanks is pretty warm. Almost "cooked" from some engines like the ISX. By running that returned fuel thru a cooler before it hits the tanks, it is more dense and you have nice cool fuel that gets picked up by the pump and sent thru the system again. It is better for the engine, and mpg's can improve a little. Obviously, in winter, you want the warm fuel to actually make it to the tanks and keep fuel flowing nicely. So, you would disable or cover the cooler. The dealer I got my glider truck from was installing fuel coolers on a number of new trucks.

 

transmission coolers perhaps?

 

Worked fine for me, even on my Note III.

 

Yep, that would work. Since it would be located inline off the engine before the return line goes to the fuel tanks, some have gotten coolers that also have a thermostatically controlled fan on them. That would be the ideal setup, but even a standard cooler would be better than nothing.