P1211 not due to being chipped?? - Page 4 - Diesel Forum

MADVAN · 09-28-2007, 11:19 PM

Sounds like the screen in the HPOP is clogged. [img]/forums/images/%%GRAEMLIN_URL%%/mad.gif[/img]

Bill

budman451 · 09-28-2007, 11:32 PM

<div class="ubbcode-block"><div class="ubbcode-header">Quote:</div><div class="ubbcode-body">Also why is my analog gauge still showing high pressure and rising but the AE showing 724psi? </div></div>

The pressure shown through AE or any other scan tool is a computed value given by the PCM, so it is not what the PCM may use for engine control strategy, whereas ICP V will be the exact reading from the ICP Sensor, if the PCM is detecting unusual ICP values, it will default to a programmed strategy and ignore the input from the ICP. From looking at your chart, the ICPV is showing the same reading as what your gauge would show, but the PCM doesn't like it, so it is inferring its own value. Watching ICP instead of ICPV can easily mislead someone sometimes.

If the engine will start and run with the IPR unplugged, either you have a faulty new IPR, or something downstream, or just upstream of the IPR may be plugged or restricted. What is the oil quality like? When you removed/replaced the IPR previously, was there any signs of debris in the IPR to indicate a potentional HPOP failure, which could have damaged the new IPR?

KansasDiesel · 09-30-2007, 03:07 PM

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Buddy_M</div><div class="ubbcode-body"> <div class="ubbcode-block"><div class="ubbcode-header">Quote:</div><div class="ubbcode-body">Also why is my analog gauge still showing high pressure and rising but the AE showing 724psi? </div></div>

The pressure shown through AE or any other scan tool is a computed value given by the PCM, so it is not what the PCM may use for engine control strategy, whereas ICP V will be the exact reading from the ICP Sensor, if the PCM is detecting unusual ICP values, it will default to a programmed strategy and ignore the input from the ICP. From looking at your chart, the ICPV is showing the same reading as what your gauge would show, but the PCM doesn't like it, so it is inferring its own value. Watching ICP instead of ICPV can easily mislead someone sometimes.

If the engine will start and run with the IPR unplugged, either you have a faulty new IPR, or something downstream, or just upstream of the IPR may be plugged or restricted. What is the oil quality like? When you removed/replaced the IPR previously, was there any signs of debris in the IPR to indicate a potentional HPOP failure, which could have damaged the new IPR?

</div></div>

Oil had 2600 miles on it when this problem occured, I changed oil before the troubleshooting stage mainly because it was due. No debris in the old IPR looked very clean.

johndeerebones · 09-30-2007, 11:03 PM

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: KansasDiesel</div><div class="ubbcode-body">JDBones - Action and I have discussed that T/S too that a restriction could be my problem, but from what I understand is that there isn't anything but to replace the HPOP. That's an expensive Guess. Or is the restriction in the resivour? They are seperate from what I gather. Is there NO WAY POSSIBLE to clean out the Resv? even if you remove it from the engine? </div></div>

Has to be a return issue, yes, your hpop could be stopped up, but I belive the after the return oil flows like this...

pressure to ipr - lets excess through which goes back through the hpop and gasket to the front cover - then either to the resevoir or to the pan, can't remeber where it goes from there....

might take the hpop off and fish a small diameter cable through the return galleies and make sure they are clear....

KansasDiesel · 10-03-2007, 10:40 AM

Here is my current update, I did remove the HPOP and did my best to clean it out, I did get some debris out of the pump some metal shavings. Put it back on the engine and gave her a try, for troubleshooting. The pressures were on the avg 400psi lower at idle then they were the previous runs, but still in the 900 psi range. then the CEL came on and rough idle again. The next run seemed even higher pressure. This to me indicated the HPOP is getting clogged with some sort of debris causing the high pressure at idle.

Side note: I find it funny that I wish I had this higher pressure when running the higher RPMS. but can't live with the CEL and the rough idle, I can get 4000psi easy right now. :-)

Where can I get a HPOP the least expensive?? Anyone have a source? I need one rather Quickly!

johndeerebones · 10-03-2007, 10:46 AM

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: KansasDiesel</div><div class="ubbcode-body">Here is my current update, I did remove the HPOP and did my best to clean it out, I did get some debris out of the pump some metal shavings. Put it back on the engine and gave her a try, for troubleshooting. The pressures were on the avg 400psi lower at idle then they were the previous runs, but still in the 900 psi range. then the CEL came on and rough idle again. The next run seemed even higher pressure. This to me indicated the HPOP is getting clogged with some sort of debris causing the high pressure at idle.

Side note: I find it funny that I wish I had this higher pressure when running the higher RPMS. but can't live with the CEL and the rough idle, I can get 4000psi easy right now. :-)

Where can I get a HPOP the least expensive?? Anyone have a source? I need one rather Quickly! </div></div>

You can usually buy a stock hpop for our trucks on ebay, there is always one being parted out.
I would take this opotunity to upgrade to the 17* crm pump though....

KansasDiesel · 10-03-2007, 10:50 AM

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: johndeerebones</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: KansasDiesel</div><div class="ubbcode-body">Here is my current update, I did remove the HPOP and did my best to clean it out, I did get some debris out of the pump some metal shavings. Put it back on the engine and gave her a try, for troubleshooting. The pressures were on the avg 400psi lower at idle then they were the previous runs, but still in the 900 psi range. then the CEL came on and rough idle again. The next run seemed even higher pressure. This to me indicated the HPOP is getting clogged with some sort of debris causing the high pressure at idle.

Side note: I find it funny that I wish I had this higher pressure when running the higher RPMS. but can't live with the CEL and the rough idle, I can get 4000psi easy right now. :-)

Where can I get a HPOP the least expensive?? Anyone have a source? I need one rather Quickly! </div></div>

You can usually buy a stock hpop for our trucks on ebay, there is always one being parted out.
I would take this opotunity to upgrade to the 17* crm pump though.... </div></div>

I was wondering if the 17* pump would work. I looked on Ebay last night and didn't get any coming up. I don't mind spending a little extra but can't swing it from Ford or International. I would also like one with a warrenty. So it would have to come from a reptubale company

MADVAN · 10-03-2007, 11:06 AM

Get the 17* pump.
Only change will be the hose connections on the pump.

Bill

KansasDiesel · 10-03-2007, 11:12 AM

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: MADVAN</div><div class="ubbcode-body">Get the 17* pump.
Only change will be the hose connections on the pump.

Bill </div></div>

Thanks Bill, do you have a source for an inexpensive pump?

KansasDiesel · 10-03-2007, 11:14 AM

The 17* pump was on what years?

MADVAN · 10-03-2007, 11:37 AM

17* is 99 and up SD.
Most available is reman. Really have never seen new.
As stated above sometimes Flea-bay for good price.

Bill

KansasDiesel · 10-03-2007, 11:50 AM

Yep, not looking for new Reman. is good enough for me. Ebay has nothing, Just tying to find a good price out there. And having a hard time even finding them.

MADVAN · 10-03-2007, 12:02 PM

If all fails IH is less than ford. Just donot let them know the core is a 15*.
Check your local parts guy. Might not be to bad.

Bill

**action4478** · 10-03-2007, 08:59 PM

Ed... do us all a favor .....When you get the new pump, tear the old one apart & take some pictures of the elusive "edge " filter

**action4478** · 10-03-2007, 09:00 PM

Did you have any luck on car part?....