My own Grey vs. Black CPS test - Page 10 - PowerStrokeNation : Ford Powerstroke Diesel Forum
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post #91 of 113 (permalink) Old 05-11-2009, 02:00 PM
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Re: My own Grey vs. Black CPS test

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Originally Posted by Bushwakd View Post
Any idea where the black International CPS #1825899C93 fits in all this. I bought this from Powerstrokeshop.com back in 2002. After Ford did the recall (grey) on my truck I pulled the grey cps and put my International one in. I just found another black International #1825899C93 as a spare. Is this an older version black or what? Is the one I have the correct one???????
I've always bought mine from Jody@dp tuner,but there out of them.

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post #92 of 113 (permalink) Old 05-11-2009, 09:19 PM
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Re: My own Grey vs. Black CPS test

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Originally Posted by 4cstr View Post
I had this discussion with my IH parts guy a few months ago. IH is OUT of their supply of black sensors. There may be a few dealerships that still have some left on their shelves...but nationally...they are out. The part number...1821720c99 now rolls over to the grey cps.

If you are lucky enough to stumble across a dealer that has a black one on the shelf...get it. I know that NAPA carries a black one...I don't know the part number. I have heard mixed results about that one though. Some report good things...others report that its a piece of crap and good for nothing except a paperweight.
This link is not directed at any one individual, so no flamin. Look at the part #'s for the International CPS listed in the link. Is there a right one and a wrong one? Or it does not matter. Several of you have posted the 1821720C99. Match that # to the # in the link. I have always for years wanted to know why the difference in the #'s. If somebody could cross reference the #'s in the link from Ford to International we might get somewhere and I can bury the dead horse.
Can we keep this civil? To me I see it as the C99 # should go to the 99-03 and the C93# should go to the 94-97 but the info shows different. I am running the International 1825899C93 and also have a spare.
http://65.121.190.196/mods/cps.html

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post #93 of 113 (permalink) Old 05-11-2009, 10:39 PM
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Re: My own Grey vs. Black CPS test

A couple of years ago, when I replaced my CPS (with an International one), I told the IH dealer I needed one for a T444e engine. The dealer said he needed to know the engine serial number. He basically said there was any "early" and a "late" version of the CPS for the 444.

I'm sure this coresponds to the "early" and "late" version of the Powerstroke as well.

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post #94 of 113 (permalink) Old 05-12-2009, 08:26 AM
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Re: My own Grey vs. Black CPS test

Quote:
Originally Posted by Bushwakd View Post
This link is not directed at any one individual, so no flamin. Look at the part #'s for the International CPS listed in the link. Is there a right one and a wrong one? Or it does not matter. Several of you have posted the 1821720C99. Match that # to the # in the link. I have always for years wanted to know why the difference in the #'s. If somebody could cross reference the #'s in the link from Ford to International we might get somewhere and I can bury the dead horse.
Can we keep this civil? To me I see it as the C99 # should go to the 99-03 and the C93# should go to the 94-97 but the info shows different. I am running the International 1825899C93 and also have a spare.
http://65.121.190.196/mods/cps.html
The following comes directly from my IH guy...who I trust quite a bit.

The base number for the cps is the 1821720. This is the last base number for the sensor. The Cxx number stands for the iteration of said part. So...C93 was the first version of the part...with C99 being the last iteration of the part. He told me that sometimes the only reason a part number changes is because something else changed with the motor. So...the part physically stayed the same...but the part number changed.

According to him...there is no such thing as an "early 7.3L" cps versus a "late 7.3L cps". The sensors are completely interchangeable with the motors. If you have a cps with a part number 1821720C93...it is the same as a cps with a part number of 1821720C99. One of the first ones I got from him was the C93 version. It ran fine in my early 99. The last one I got from him (I have 3 new ones stashed away ) was a C99 version. I installed it and the truck runs just the same. No difference from what I could tell.

He was also the one that did a national search of the IH version of the cps...and told me that nationally...there are no more.

early 99, old, slow but paid for.
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post #95 of 113 (permalink) Old 07-11-2011, 08:13 PM
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Re: My own Grey vs. Black CPS test

I know this is an old thread but I just found it in an online search. Just this morning I had to get a CPS so I stopped at my local IH dealer and he sold me IH # 1821720C99.

Did I luck up by getting this? What I've read here is that these no longer exist.

Is this the correct CPS for my 96 7.3? The truck is running, but doesn't seem "right" for some reason. I've also read that maybe these older sensors won't work as well if you have a programmer on the truck, which I do.

Thanks
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post #96 of 113 (permalink) Old 07-13-2011, 03:30 AM
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Re: My own Grey vs. Black CPS test

If the sensor is magnetic, it's not a Hall Effect sensor, it's a VR sensor, or variable reluctance. The only way a hall sensor would work in this case is if there were magnets attached to the cam gear.

At any rate, if there is a difference in the actual magnet used in the sensor, then it will have a change in output of the sensor, unless there are built in electronics (signal conditioning) in the sensor itself. Also, a VR sensor is somewhat sensitive to installation clearance, or how close it is to the actual gear or wheel. The farther away, the less signal strength. I could see in some cases with a weaker magnet, a mounting bracket and engine block that were at the opposite end of the tolerance spectrum, that the signal may not be "within spec" for the computer.

I would like to see this test done as well, seeing as how today I just had to change my CPS out due to my truck going into what seemed to be a "limp mode" and hardly idling. I replaced with a grey aftermarket sensor, and it's back on the road again. I don't know if it's the fact that I read here today before I replaced the sensor that the grey one lowers performance, but I could almost swear it seems to be down on power. It does idle quite well though.

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post #97 of 113 (permalink) Old 07-13-2011, 12:49 PM
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Re: My own Grey vs. Black CPS test

Update from this morning. I'm thinking the Grey vs black in may case is the placebo effect. Power seems the same and the mileage computer is right on target. Time will tell on the mileage aspect as I'll need to drive it for a week and do a hand calculation. This morning when I filled up, I hand calculated it to be 18.0 mpg vs the computer saying 17.2. Close enough IMO.

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post #98 of 113 (permalink) Old 08-04-2011, 11:34 PM
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Re: My own Grey vs. Black CPS test

I ran a black cps till it started to go. Got a grey one from ford and it ran fine for a while. Then run the test and number's 3 and 8. Changed it to a black today and it runs better. I still have to take it to have the test run again.

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post #99 of 113 (permalink) Old 08-05-2011, 12:14 PM
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Re: My own Grey vs. Black CPS test

I'm having a hard time even finding a black one - for a reasonable price. Still running the aftermarket sensor at this point. Doesn't run as good as it used to, and the mileage seems to be a little lower.

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post #100 of 113 (permalink) Old 08-05-2011, 09:10 PM
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Re: My own Grey vs. Black CPS test

Riff Raff and Diesel O-rings.com had a couple left each as of last weekend.

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