this topic kinda goes with the throttle body topic,but thought it should be separate. found out there is a wire harness out that lets you adjust the signal to the injectors. you can only make richer though. you need to install a adjustable pressure regulator first. lower pressure will make system leaner. then adjust pot in harness for desired fuel supply. if i'm right there is a pot for bottom, mid and top. checking on this. acts just like changing jets in a carb system. anyboby else know of this system ?

no but id be interested in hearing about it if it exists.

jim

advanced performance concepts in michigan makes one. here is the no. 269 637 4368 ask for dan. price is around 250 for harness.

ive been around fuel injection a while and there are ways to "trick" it. the coolant temp probe is easy to find and by adding a resistor or even an adjustable resistor you can richen your mix. probably about the same concept as what your talking, but an adjustable resistor is about $3. i still take NO responsibility, if you end up banging your pistons out with a sledge hammer.

I won't because I know or will know what I'm doing before I do anything. I work on $200,000.00 machines every day.

im not sure of any way to lean the fuel except for maybe mounting your water probe farther away. your thinking what?? i think if you put a pipe extension between it and the water you can make it read cooler. are you a cnc machinist too?

i reread my post and realized a colder temp will richen fuel.

By lowering fuel pressure. You'll make a lean condition. It will be noticed in mid range first. This I already know. Using the harness you can add fuel where needed to fine tune. No cnc just a catipillar mech. lol

i see, im not quite as knowledgable on sled efi as cars.