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Old 12-04-2010, 01:01 PM
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NEW CPS, Milage dropped

Hi, I am new to this forum. I have owned a 2003 F-250 7.3L, 6 speed, 4x4, 115k. Bought it new. I let the dealer replace the CPS under the recall at about 90K, or about year and a half ago. I used to be able to get 21 MPG with conservative driving in summer, haven't broke 20 or even really close since then. Is the new sensor that bad or did they reflash my computer?http://www.powerstroke.org/forum/ima...lies/dunno.gif
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Old 12-04-2010, 11:54 PM
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You could try and get a different one from international. they're supposed to have one that runs great. but thats my two cents...
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Old 12-05-2010, 07:31 AM
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Could be the "Winter Blend" fuel we're all now using too....
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Old 12-05-2010, 09:31 AM
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I might go get a CPS from international and try when I get time. Should I get the one for the 466 that changes the timing a little or just get the IH replacement for the 444E?
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Old 12-09-2010, 05:59 PM
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from what I can tell, the black one had the most advance and the grey and blue retard timing a small amount each. From order of most advance to least = Black, grey, blue IH
Retarded timing is only good for less smoke(EPA) smother idle and setups with lots and lots of boost and injectables, because High boost and Nos/meth increase timing by themselves. So for stockers wanting milage you gotta suffer the high price and unreliblility of the blackones OR have your friendly chip burner add the extra timing and run the grey or blue.

Please correct me if im wrong guys Im a humble green ford owner. Just basing it on the change in idle sound, quieter and smoother means less advance, at least im my expirience
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Old 12-09-2010, 06:10 PM
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Quote:
Originally Posted by rivercat View Post
from what I can tell, the black one had the most advance and the grey and blue retard timing a small amount each. From order of most advance to least = Black, grey, blue IH
Retarded timing is only good for less smoke(EPA) smother idle and setups with lots and lots of boost and injectables, because High boost and Nos/meth increase timing by themselves. So for stockers wanting milage you gotta suffer the high price and unreliblility of the blackones OR have your friendly chip burner add the extra timing and run the grey or blue.

Please correct me if im wrong guys Im a humble green ford owner. Just basing it on the change in idle sound, quieter and smoother means less advance, at least im my expirience
does the black one actually advance timing or is the black one stock and the gray and blue one are just for tree huggers???
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Old 12-09-2010, 06:34 PM
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yeah u could say thats most likely the case. Black is stock and grey probobly loses .5* and blue 1* or so, 2* would be very noticeable in mileage and performance. I would think the chip burners will assume everyones doing the grey so be sure and tell them u have a black if u do so you don't end up over timed. If im not mistaken the basic chip for the VP44 equiped Cummins Dodge trucks made 98.5-02 like the edge EZ or power puck or bully dog tourqe dog merely advance timing 2.5* or so to get back the better performance lost to emissions as proper timing produces more smoke/NOx
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Old 12-09-2010, 06:43 PM
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Thanks, I hope to go and get one of the black CPS sensors next weekend if the weather still cooperates.
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Old 12-09-2010, 09:17 PM
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the cheapest I have seen is 48+ship. Have you found it cheaper? I bid on one at ebay and of course people ran it up to like $70
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Old 12-13-2010, 10:49 AM
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ok dont get confused like me and buy the dark blue ford CPS for IDI 99 and older trucks
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