Calibration help on lower egt 1999 series 60 BK 12.7

Yes

 

Long story short, two years ago in February I put a new engine in the truck complete engine and it it had the borg 1702 on it and about a month after installation, I started having a backfire out of the exhaust. The engine builder recommended me to put a K 31 on it which I did and the backfire went away after the engine was out of warranty I found a tuner guy to tweak things a little bit with the K 31. It just ran out of steam on the top and real quick. I’m grossing out every day at 98,000 pounds and it just wasn’t feasible I put the Borg 1702 back on it with the same tuning that he had done and it was a little bit better and he tweaked it a little bit more and according to what I was telling him, he thought that I had something going on because I wasn’t happy with the gains I was receiving. Fast forward to a month and a half ago now the engine started running rough at idle and a cut out test showed that number five and number six were weak so I changed them and the engine ran normal and it even had quite a bit more power from what I started with still no EGT issues Four weeks after changing those two injectors number five filled my crank case with probably 10 gallons of fuel so I decided to get the two that I just replaced under warranty and then buy four more and replace all six at the same time and that’s when my EGT problem started After changing all six injectors the output increase was amazing what I expected right from the start. I just wanna find somebody that can tweak it a little tiny bit to get my EGT‘s back down or look at the file that’s in it right now and just get a second opinion.

 

I pressurized from the turbo inlet. Was able to get 30 psi into it. No leaks anywhere. Radiator is clean. Gotta keep up on that because of being off-road so much. New air filter. All it was was an injector change that pushed it to where it is. Original injectors had 200k+ on them. Must have been weak for a while. Changed like for like. I never imagined the difference would be that big. I have very limited knowledge but I’m almost certain fuel can be pulled back a bit.

 

N

Not an airflow problem

 

You absolutely can find a tuner to do anything to it. If they know what they’re doing of course. I got a hold of my guy. He got it turned back. I had him tune it quite a while ago and everything was fine, so we thought. He did mention that he thought he was pushing it a bit harder than normal for what performance I was telling him about. Fast forward to two months ago now, I had an injector fill the engine with fuel. I changed all six and holy moly the difference. He was right. He was pushing it harder but he needed to because of whatever was wrong with the old injectors. The exhaust temp really didn’t become a problem until the weather warmed up and ambient was high 60’s plus. Now it pulls just as hard and haven’t seen 900 degrees yet.