Injector/HPOP Problem - Ford Powerstroke Diesel Forum

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post #1 of 21 Old 05-28-2009, 06:04 AM Thread Starter
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Injector/HPOP Problem

I haven't been happy with my performance lately and had my truck scanned. It showed low injector pressure. I'm about 1,000 psi shy of what Jody said I should be getting. What is the process to find out if I have bad injectors or a bad HPOP. Thanks

2003 F-250 7.3 CC SB
DP Tuner F-5 Stock, High Idle, 60tow, 80eco 120race
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4" MBRP Exhaust
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post #2 of 21 Old 05-28-2009, 07:21 AM
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So what was your ICP? dont just say its 1,000 psi low of what Jody said it should be.

Why dont you run a BUZZ test and that will tell you if you have a bad injector

1999.5 Ford F-250 7.3l 4x4 PSD DI Short block, Ported Heads, Head studs, Over size valve springs, DI Push Rods, DI RR, GTP38R, GSL 392 fuel pump with 3/8 line feeding 238cc Injectors from Nate @ Unlimited Diesel and Live Tuned By Matt @ Gearhead Automotive

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post #3 of 21 Old 05-28-2009, 07:29 AM
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Could also be a bad IPR possibly?

2001 - 14" OUO 525 - 38x15.5x20 Toyo & 20x12 Weld Cheyenne's. Hybrids, 38R, BTS, Spearco, Terminators..



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post #4 of 21 Old 05-28-2009, 07:32 AM
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Quote:
Originally Posted by layson View Post
Could also be a bad IPR possibly?
It sure could.

Have you ran a scan tool on it?

1999.5 Ford F-250 7.3l 4x4 PSD DI Short block, Ported Heads, Head studs, Over size valve springs, DI Push Rods, DI RR, GTP38R, GSL 392 fuel pump with 3/8 line feeding 238cc Injectors from Nate @ Unlimited Diesel and Live Tuned By Matt @ Gearhead Automotive

Auto to ZF6 Swap Completed

520hp and 926tq - 5/23/09

516hp and 1121tq - 4/24/10

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post #5 of 21 Old 05-28-2009, 10:08 AM Thread Starter
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The guy who scanned it said it read 15 Mega paskels or something like that which equals approx 2091 psi. We called Jody and he said it should be running 22 mega paskels which should be more like 3100 psi. Jody said he had the same problem with his excursion when we called him. Can I run a buzz test or do I have to have someone do it. Sorry of the questions but I'm learning this end of it still.

2003 F-250 7.3 CC SB
DP Tuner F-5 Stock, High Idle, 60tow, 80eco 120race
AFE Stage 2
4" MBRP Exhaust
Turbo Wheel
Trans, Pyro, Boost
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post #6 of 21 Old 05-28-2009, 10:16 AM
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On more reason im not running Jody's tuning anymore. 3100psi is to high. should be running between 2600 and 2800 psi

1999.5 Ford F-250 7.3l 4x4 PSD DI Short block, Ported Heads, Head studs, Over size valve springs, DI Push Rods, DI RR, GTP38R, GSL 392 fuel pump with 3/8 line feeding 238cc Injectors from Nate @ Unlimited Diesel and Live Tuned By Matt @ Gearhead Automotive

Auto to ZF6 Swap Completed

520hp and 926tq - 5/23/09

516hp and 1121tq - 4/24/10

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post #7 of 21 Old 05-28-2009, 01:30 PM
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AutoEnginuity software will be able to do a buzz test on the injectors. Very usefull tool to have around. AutoEnginuity PC Scan Tool (USB)

If it is your HPOP you may want to look at an Adrenaline. I replaced mine because it was leaking and am very happy with it even without tunes yet. Good luck!
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post #8 of 21 Old 05-28-2009, 08:51 PM
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Quote:
Originally Posted by Big_Stroker View Post
On more reason im not running Jody's tuning anymore. 3100psi is to high. should be running between 2600 and 2800 psi
What? 2800 psi is a joke.

To the OP: Listen to your Tuner.
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post #9 of 21 Old 05-29-2009, 03:32 AM
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Quote:
Originally Posted by TerminatorEngineering.com View Post
What? 2800 psi is a joke.

To the OP: Listen to your Tuner.
I figured you would say something in here

Your a joke

1999.5 Ford F-250 7.3l 4x4 PSD DI Short block, Ported Heads, Head studs, Over size valve springs, DI Push Rods, DI RR, GTP38R, GSL 392 fuel pump with 3/8 line feeding 238cc Injectors from Nate @ Unlimited Diesel and Live Tuned By Matt @ Gearhead Automotive

Auto to ZF6 Swap Completed

520hp and 926tq - 5/23/09

516hp and 1121tq - 4/24/10

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post #10 of 21 Old 05-29-2009, 05:33 AM
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Is that all you have for a response? Please tell us all who told you that 2600 psi is enough? That is a joke in it's self, especially with Hybrids. With hybrids, you should have a minimum of 3000psi at WOT. Anything less, is a JOKE!
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