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will a bad CPS throw a code

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Old 01-21-2012, 08:43 AM
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will a bad CPS throw a code

llooking fo help will a bad CPS throw a code truck just dies on the road kind of sputtered and died whe motor will crank and the tach does not even move I put my auto engineuity on it no codes I cant figure it out. I thiought it was gelled up but i cant find that either truck has been plugged in all night and still nothing. just cranks does the CPS fit the senerio. please help
 
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Old 01-21-2012, 08:57 AM
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Sometimes yes, sometimes no. I've experienced both. If you have a spare it's easy enough to swap out.

If you suspect a fuel problem open the drain on the bowl and see what you get.

Also could be oil / hpop related.
 
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Old 01-21-2012, 09:13 AM
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I opened the fuel bowl and there is liquid fuel in the bowl and did a buzz test the injectors sound good I am hoping that it is the CPS
 
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Old 01-21-2012, 10:44 AM
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With AE on and watching engine RPM, does it show cranking when you try to start it?
 
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Old 01-21-2012, 12:13 PM
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I have not looked at that yet and if it does ddoes that mean a good CPS and I need to look at other things
 
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Old 01-21-2012, 12:22 PM
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If AE shows RPM your CPS may very well be good since that is where the PCM gets it's signal from. Like mentioned before, throw a spare one in and see if it helps.

Sounds to me more like an oil problem or possibly IPR related. This could be a short or something else.
 
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Old 01-21-2012, 12:35 PM
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This sounds like fuel bowl heater, don't remember what fuse it is on a 99 but on a 2000 it is fuse #30.
 
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Old 01-21-2012, 01:14 PM
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If you are not getting a WTS light do as Richard said and check fuse #30 under dash.

 
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Old 01-22-2012, 03:32 PM
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UPDATE not the fuel bowl I got that one in northern maine last year at 40 below LOL that was a cold walk back it appears that it was the CPS i changed and it took a while be got her to start drove the 30 miles to work no problem. we will see when I go out there to start her up. I was wondering if anyone knows what the hpop discharge pressure should be at idle thanks for all the help
 
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Old 01-24-2012, 02:00 PM
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Min 500psi, my 2000 ,usually about 580 at a warmed idle
 
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