Checking out injectors - Ford Powerstroke Diesel Forum
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post #1 of 25 Old 10-29-2008, 09:28 AM Thread Starter
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Checking out injectors

I have run a few cylinder tests using AE and it seems like a few of my injectors might be weak/bad. I also think I have a slight miss, which is hopefully just a bad injector. I assume I don't have the knowledge or skills to check in injectors myself, so what should I do? Send the to someone to be check out, if so who. Also is this going to be a very expensive process, am I better off getting new injectors? Thanks guys.

Early 1999 F-250, 4x2, Auto.

Installed: MBRP 4" exhaust (3.5" Hypermax downpipe for H2E), AFE Stage 2, Autometer Gauges (boost,pyro,trans), FTVB, DP 4 position chip, BRV+, ITP reg return, H2E, Mini-Mes

301 HP; on 125 setting on chip (without mini-mes, with TS Chip)
285 Hp; on Fuel 7 (without mini-mes, with TS Chip)

Pictures: H2E; http://community.webshots.com/album/362987312SygofO
Dyno; http://community.webshots.com/album/477630115ofBQJR
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post #2 of 25 Old 10-29-2008, 10:05 AM
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talk to Jim at rosewood diesel awesome guy he can hook you up on here he is DZL JIM or here is his siteDIY-Injectors.com

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post #3 of 25 Old 10-29-2008, 03:26 PM Thread Starter
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Thanks for the link, I will check that out. Do you think that a faulty injector could be causing my miss?

Early 1999 F-250, 4x2, Auto.

Installed: MBRP 4" exhaust (3.5" Hypermax downpipe for H2E), AFE Stage 2, Autometer Gauges (boost,pyro,trans), FTVB, DP 4 position chip, BRV+, ITP reg return, H2E, Mini-Mes

301 HP; on 125 setting on chip (without mini-mes, with TS Chip)
285 Hp; on Fuel 7 (without mini-mes, with TS Chip)

Pictures: H2E; http://community.webshots.com/album/362987312SygofO
Dyno; http://community.webshots.com/album/477630115ofBQJR
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post #4 of 25 Old 10-29-2008, 03:37 PM
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What tests are you doing? Whats failing? How long have the MM been in the truck?

I doubt its the injectors.

01 F-250 SC PSD,320k,16 Isspro Gauges, AFE-2,CCV Mod,IAH delete,map reg,Modded H2e, 6.0 IC, 230/100 from P.I.S, Studs, 910 springs, Forged rods, Water injection,Hydra chip-No Limit/Gearhead tuning, Swamps HVHF IDM, MBRP 4" dual's, Aero, 6" tip's, 4" Revtek lift, 37/12.5/16.5 MT's
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post #5 of 25 Old 10-29-2008, 03:47 PM Thread Starter
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Cylinder Contribution Test. The MMs have been in for over 2 years, I bought them used but put on new o-rings and all that. I have had the miss for a while, but it drives just as well as it always had. I finally did the AE test after reading about someone else using AE to figure out their miss. When I did the test no cylinder was more than 2.3% (usually these were less than 2%), some were 0%. I can't remember which cylinders exactly, I'll have to run the test again. I read on the ITP website than only be very worried if any cylinder read constantly over 3%, and none of mine did.

Early 1999 F-250, 4x2, Auto.

Installed: MBRP 4" exhaust (3.5" Hypermax downpipe for H2E), AFE Stage 2, Autometer Gauges (boost,pyro,trans), FTVB, DP 4 position chip, BRV+, ITP reg return, H2E, Mini-Mes

301 HP; on 125 setting on chip (without mini-mes, with TS Chip)
285 Hp; on Fuel 7 (without mini-mes, with TS Chip)

Pictures: H2E; http://community.webshots.com/album/362987312SygofO
Dyno; http://community.webshots.com/album/477630115ofBQJR
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post #6 of 25 Old 10-29-2008, 03:51 PM
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I assume you are taking about the Cylinder contribution test on AE, or possibly reading the cylinder rotational velocity in the live data graph. What were the results / numbers?

As a possibility, have you have replaced your CPS recently with the new one that Ford came out with during the recall? Quite a few folks have noticed increased numbers on the cylinder rotational velocity readings compared to the readings with the old CPS.

2003 F250, T Wildman tuning, J Faubion extreme duty tranny, Swamps 175/146 single shot injectors, MBRP, 6637, ISSPRO & Dirpricol gauges, CCV mod, AIH delete, 6.0 trans cooler,van turbo, WW, DI Intercooler, ITP Overboost, Schaeffer's 15W-40, oilguard bypass filter, intank & pre-pump, regulated return, Firestone air bags, Bilsteins,Dieselsite Coolant Filter, cryoed rotors, hawk pads, Mag-Hytec diff cover, 350hp/692tq
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post #7 of 25 Old 10-29-2008, 03:52 PM
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Quote:
Originally Posted by f25Opower View Post
Cylinder Contribution Test. The MMs have been in for over 2 years, I bought them used but put on new o-rings and all that. I have had the miss for a while, but it drives just as well as it always had. I finally did the AE test after reading about someone else using AE to figure out their miss. When I did the test no cylinder was more than 2.3% (usually these were less than 2%), some were 0%. I can't remember which cylinders exactly, I'll have to run the test again. I read on the ITP website than only be very worried if any cylinder read constantly over 3%, and none of mine did.

Well, you answered one of my questions before my slow but finished typing. Your injectors seem fine with those numbers. How about the CPS?

2003 F250, T Wildman tuning, J Faubion extreme duty tranny, Swamps 175/146 single shot injectors, MBRP, 6637, ISSPRO & Dirpricol gauges, CCV mod, AIH delete, 6.0 trans cooler,van turbo, WW, DI Intercooler, ITP Overboost, Schaeffer's 15W-40, oilguard bypass filter, intank & pre-pump, regulated return, Firestone air bags, Bilsteins,Dieselsite Coolant Filter, cryoed rotors, hawk pads, Mag-Hytec diff cover, 350hp/692tq
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post #8 of 25 Old 10-29-2008, 04:03 PM
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I would bet UVC harness or something along that line.

01 F-250 SC PSD,320k,16 Isspro Gauges, AFE-2,CCV Mod,IAH delete,map reg,Modded H2e, 6.0 IC, 230/100 from P.I.S, Studs, 910 springs, Forged rods, Water injection,Hydra chip-No Limit/Gearhead tuning, Swamps HVHF IDM, MBRP 4" dual's, Aero, 6" tip's, 4" Revtek lift, 37/12.5/16.5 MT's
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post #9 of 25 Old 10-29-2008, 04:17 PM Thread Starter
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Thanks for the info guys, nope i have not changed my CPS. I will run the test again tomorrow and let you guys know exactly what the max numbers are. What/where exactly UVC harness? Is that the connection on the valve cover?

Early 1999 F-250, 4x2, Auto.

Installed: MBRP 4" exhaust (3.5" Hypermax downpipe for H2E), AFE Stage 2, Autometer Gauges (boost,pyro,trans), FTVB, DP 4 position chip, BRV+, ITP reg return, H2E, Mini-Mes

301 HP; on 125 setting on chip (without mini-mes, with TS Chip)
285 Hp; on Fuel 7 (without mini-mes, with TS Chip)

Pictures: H2E; http://community.webshots.com/album/362987312SygofO
Dyno; http://community.webshots.com/album/477630115ofBQJR
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post #10 of 25 Old 10-29-2008, 04:25 PM
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Yes, there is a harness under the valve covers and the valve cover gaskets them selfs. replace both.

01 F-250 SC PSD,320k,16 Isspro Gauges, AFE-2,CCV Mod,IAH delete,map reg,Modded H2e, 6.0 IC, 230/100 from P.I.S, Studs, 910 springs, Forged rods, Water injection,Hydra chip-No Limit/Gearhead tuning, Swamps HVHF IDM, MBRP 4" dual's, Aero, 6" tip's, 4" Revtek lift, 37/12.5/16.5 MT's
Joe



DYNOPROVEN.COM, PERFORMANCEINJECTIONSYSTEMS.COM and RIFFRAFFDIESEL.COM
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