New CPS, now rough idle and missing at higher RPMs - Ford Powerstroke Diesel Forum
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Old 04-07-2013, 10:05 AM
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Angry New CPS, now rough idle and missing at higher RPMs

New CPS, now rough idle and missing at higher RPMs
Ok so my 2002 7.3 was having some ocassional loping while driving issues and the engine shut off on me once while driving. So I decided it was time to change the can positioning sensor.

I bought a new "grey" CPS from O'reilly Auto Parts which may have been my first mistake. Anyway I installed the new grey sensor then started my truck to let it warm up to see how it ran. After about 10-15 minutes of warming up, I noticed it had a slight miss. So I hopped in and gave it a little rev. At about 1500 RPM, it had a pretty bad miss accompanied by a pop and a puff of white smoke.

I never had this issue prior to installing this CPS so I assume its junk. So I'm going to take it back and try to find one worth putting in my truck. I know there has been a big debate over which one is better black, grey, and navy but everyone has different opinions. Is there any definitive way to determine which one is the best to install? Part numbers would be excellent as well.

Below is a pic of my old vs. new CPS

Thanks in advance guys.


Last edited by mtmc; 04-07-2013 at 10:50 AM.
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Old 04-09-2013, 12:13 PM
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That is the same one I got from Auto Stoned & I also Had same ressults Get the IH/Ford one spend the 18.00 & do right the first time common mistake

Jay
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Old 04-09-2013, 05:28 PM
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Yeah I took the fat one back to O'reillys and bought one from Ford. Ford part number is F7TZ-12K073-B with the IH number 1876735C91 which is the same as the one I took out. They told me this was the most updated CPS, whether or not that's true I don't know. So far it's doing the job so we'll see.

The one I took out:



The one I got from Ford.



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Old 04-11-2013, 04:24 PM
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A word of advice for you. Never buy an engine sensor from anbody but the dealer. If it is a Ford vehilce go to a Ford dealer. If it is a GM vehicle go to a GM dealer, so on and so forth. In the case of the Power Stroke Ford or International.
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Old 04-11-2013, 04:27 PM
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Black, Grey, & Dark Blue Cam Position Sensor Perdels Test - Diesel Forum - TheDieselStop.com
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