E99 7.3, P.I.S 160/30, beans 6 position chip, WWII, 4" turbo back
I replaced injectors back last july, and since then my truck hasn't seemed to run quite right. it didn't seem to have the same feel at take off. like it was lacking power, and would idle very much different than I was used to. I discovered while doing injectors that I had an up pipe leaking so I blamed what I was feeling different on being my leaking up pipes and just the way the new injectors ran.
in January I replaced the uppipes and added a wwII, 4'' turbo back exhaust, 3" plenums, and a boost fooler . made a world of difference in the way it ran but still didn't help my take off or idle.
so iv been reading up on the high pressure oil side of things, as far as I know its stock pump with 220000 miles. so iv known its probably lacking, but not too terribly concerned with it...... until tonight!
I went out and ran it watching the IPR dc and ICP.
chip tuned up.
cold start and idle, 600rpm DC 19.5, and IPC 760 to 830. and continued to jump back and forth.
hot idle, 600rpm DC 10.1, and IPC 460 to 530.
driving at 55mph at 1500rpm DC 13.5 and ICP 713 to 820.
WOT DC 84, and ICP dropped to 1800 came back to 2000 and 2300, and continued to bounce back and forth between the two till I let off.
second pass at WOT, DC 76, and ICP dropped to 1700 and leveled off at 1900 to 2000.
so just for fun I put the chip back to stock
idle DC 11.7, and ICP 490 to 570.
WOT DC 34 and ICP 1900 and leveled off bouncing between 2000 and 2100.
had a couple more runs with the relatively the same results before I got pulled over lol.
evry time just like always when id let off to start slowing down when I hit the clutch to pull off the road rpms will drop to 400 and come right back to 600, just long enough to see the head lights kinda dim and then when I get stoped it will kinda sound like its loping.
I guess its rather apparent I need a hpop, but my question is will a failing hpop cause the low power on take off and the dropping rpms everytime I let off the throttle and the loping idle?
iv read that if it cant hold about 2300 ICP its bad, but what is good ICP and DC?
anyways sorry for the long post.
I replaced injectors back last july, and since then my truck hasn't seemed to run quite right. it didn't seem to have the same feel at take off. like it was lacking power, and would idle very much different than I was used to. I discovered while doing injectors that I had an up pipe leaking so I blamed what I was feeling different on being my leaking up pipes and just the way the new injectors ran.
in January I replaced the uppipes and added a wwII, 4'' turbo back exhaust, 3" plenums, and a boost fooler . made a world of difference in the way it ran but still didn't help my take off or idle.
so iv been reading up on the high pressure oil side of things, as far as I know its stock pump with 220000 miles. so iv known its probably lacking, but not too terribly concerned with it...... until tonight!
I went out and ran it watching the IPR dc and ICP.
chip tuned up.
cold start and idle, 600rpm DC 19.5, and IPC 760 to 830. and continued to jump back and forth.
hot idle, 600rpm DC 10.1, and IPC 460 to 530.
driving at 55mph at 1500rpm DC 13.5 and ICP 713 to 820.
WOT DC 84, and ICP dropped to 1800 came back to 2000 and 2300, and continued to bounce back and forth between the two till I let off.
second pass at WOT, DC 76, and ICP dropped to 1700 and leveled off at 1900 to 2000.
so just for fun I put the chip back to stock
idle DC 11.7, and ICP 490 to 570.
WOT DC 34 and ICP 1900 and leveled off bouncing between 2000 and 2100.
had a couple more runs with the relatively the same results before I got pulled over lol.
evry time just like always when id let off to start slowing down when I hit the clutch to pull off the road rpms will drop to 400 and come right back to 600, just long enough to see the head lights kinda dim and then when I get stoped it will kinda sound like its loping.
I guess its rather apparent I need a hpop, but my question is will a failing hpop cause the low power on take off and the dropping rpms everytime I let off the throttle and the loping idle?
iv read that if it cant hold about 2300 ICP its bad, but what is good ICP and DC?
anyways sorry for the long post.