Upgrades and Aftermarket - 99 & up 7.3L EngineUpgrading or adding OEM or aftermarket equipment to your 1999-Up Super Duty or Excursion with 7.3L Power Stroke diesel engine. Please confine discussion of topics in this forum to those items that are specific to the 7.3L Power Stroke engine.
i just put 230cc injectors in my truck but they have stock nozzles, now my truck idles like it has a big came in it with or without my chip in it, what do i do fix this?
best bet is to have the chip burnt to the injectors now. My 275's do the same but the chip is still for the 160 stage ones. My guess would be the icp needs to be dropped a bit at idle.
You need to get reprogrammed for single shot injectors. Your stock injectors are split shot and your pcm is trying to get the injector to do something it is not capable of, which is shoot a pilot shot which helps smooth out and quiet down idle.
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Dave
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early '99 F350 4x4 Ex Cab (born 2/98)
AFE stage II, 4" turbo back MBRP, Dunrite Triple Disk, Trans Go Tugger, Bean' D66, DDP's BDs w/0070 nozzles, ITP Overboost Anihilator, DI regulated return, CCV Mod, Zoodad ISSPRO guages, Stealth pumps, DP tunes, 4" Revtek lift, 315/75/R16's, Airdog waiting on the bench
You need to get reprogrammed for single shot injectors. Your stock injectors are split shot and your pcm is trying to get the injector to do something it is not capable of, which is shoot a pilot shot which helps smooth out and quiet down idle.
The PCM has nothing to do with there being a pilot shot. The split shot results when an annular ring in the piston no longer seals and there is a brief interruption in injection. The timing will be different however.
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2002 F350 Lariat CC 4x4 Auto 4.10 DRW, DP-Tuner F5 live tuned stock, quiet, 40dd, 40, 60, 80 tow, 80e and 120r, B&W GN, BrakeSmart, 'pooned tank, tank and pre-pump mods, 2µ Dahl 100 filter, regulated return, BTS dual HPOP, AC singles with EDM 34 lpm nozzles, AIS, H2e, Spearco 6.0 IC, Hypermax 3.5" dp--> MBRP 4" 304SS exhaust, BTS tranny, 203º T-stat, Chevron ELC, coolant filter, Oilguard bypass with Schaeffer 9000, WranglerNW 200 amp alternator & Optima group 31 batteries, Nippon-Denso starter, SPA gauges, SteveRacer mods, Hella 80/100W 9007s, Hella Micro DE foglights, 1000FF driving lights, 220W backup lights, Stancor contactor, Michelin XPS Traction tires, X-Springs, Bilstein shox, custom bumpers but otherwise stock. Nov 30 '99 build engine with 16 K miles, Fluidampr, Comp Cam 910 springs, Melling LPOP and ARP headstuds.
The PCM has nothing to do with there being a pilot shot. The split shot results when an annular ring in the piston no longer seals and there is a brief interruption in injection. The timing will be different however.
My bad. But why can it be such a pain in the butt to get some trucks to idle right after they go to singles if it is simple timing that needs to be adjusted?
__________________
Dave
___________
early '99 F350 4x4 Ex Cab (born 2/98)
AFE stage II, 4" turbo back MBRP, Dunrite Triple Disk, Trans Go Tugger, Bean' D66, DDP's BDs w/0070 nozzles, ITP Overboost Anihilator, DI regulated return, CCV Mod, Zoodad ISSPRO guages, Stealth pumps, DP tunes, 4" Revtek lift, 315/75/R16's, Airdog waiting on the bench
My bad. But why can it be such a pain in the butt to get some trucks to idle right after they go to singles if it is simple timing that needs to be adjusted?
Getting the idle right is the first thing Jody does during live tuning. Depends on the injectors and nozzles. Too big a nozzle and it can be very difficult to get the idle right. I think EH nozzles may be harder than EDM but that is just my WAG. When I got my single shot injectors, Jody mistakenly programmed the chip for splits. It was very hard to keep the idle up, felt like it was going to die all the time and I had to keep my foot on the throttle to keep her going. The injectors were VERY smoky with split shot programming as well.
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2002 F350 Lariat CC 4x4 Auto 4.10 DRW, DP-Tuner F5 live tuned stock, quiet, 40dd, 40, 60, 80 tow, 80e and 120r, B&W GN, BrakeSmart, 'pooned tank, tank and pre-pump mods, 2µ Dahl 100 filter, regulated return, BTS dual HPOP, AC singles with EDM 34 lpm nozzles, AIS, H2e, Spearco 6.0 IC, Hypermax 3.5" dp--> MBRP 4" 304SS exhaust, BTS tranny, 203º T-stat, Chevron ELC, coolant filter, Oilguard bypass with Schaeffer 9000, WranglerNW 200 amp alternator & Optima group 31 batteries, Nippon-Denso starter, SPA gauges, SteveRacer mods, Hella 80/100W 9007s, Hella Micro DE foglights, 1000FF driving lights, 220W backup lights, Stancor contactor, Michelin XPS Traction tires, X-Springs, Bilstein shox, custom bumpers but otherwise stock. Nov 30 '99 build engine with 16 K miles, Fluidampr, Comp Cam 910 springs, Melling LPOP and ARP headstuds.
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