Reply to thread

Message: [QUOTE="Powerstroke Man 6.4, post: 1173494, member: 4573"] Did you checkout my previous post? Your truck is acting the same as my old late 1999 7.3 with 160/100's me or swamps couldn't figure what was wrong everything check out good. Truck had new swamps HVHF IDM , new T500 , new swamps 160/100's, new VC gaskets, UVCH's, new cps , fuel sump, AD-100 (for filters) new fuel pump, PHP Hydra with swamps tunes GTP38R W/ WW2 new ICP sensor/harness and IPR. I was on a DPC-432 FHP2 PCM with PMT1 tunes on the hydra. I always had a "up and down" idle even with stock injectors with DP tunes on a F5 with the FHP2 432 strategy when I changed injectors I changed to the hydra and swamps tunes. swamps had to do ALOT of tuning changes for the truck to even get it to idle right after bunch tuning changes via 100% nozzle tunes it helped a bit but idled the same rough a few minutes then smooth then back to rough and stayed rough idle and ticking. Verified compression was good, fuel pressure was excellent ICP/IPR numbers good at idle and WOT and other PIDS were good ,connections were great No oil/HPOP leaks. Oil level was normal no codes With the changes to the 100% nozzle tunes not helping very much we decided to try different nozzle size tunes. I ended up trying out 200% nozzle tunes then boom switched to those 200% nozzles tunes everything just idled so smooth idled better than stock (even with the DP) and all my problems were gone and gained (SOTP) more power. So what ever differences the 200's tunes had that the 100's tunes didn't have solved every problem. I know you got different size injectors/nozzles and tuner but the problems are very similar (watched the videos). If all your things check out good compression wiring and pids fuel pressure IDM etc and nothing via hard parts changes anything I would chase after the tuning. Is the chip in the PCM tight? [/QUOTE]