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Old Nov 11, 2004 | 08:13 PM
  #16  
wlihntr's Avatar
wlihntr
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From: colorado
good luck let us know what happens. another thing i thought of, if you get a chance you may want to take it by an "autozone" or "checkers auto parts" and have them scan it to see if there are any codes stored, that may give you a better idea what is going on
 
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Old Nov 11, 2004 | 08:47 PM
  #17  
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From: whitney
one question on if a code is stored, would it show a light ''check engine soon'' or
''service engine soon'' before it would throw a code? I have thought about taking
it in, but ya know how time just runs away from you, hehe. Thanks
 
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Old Nov 11, 2004 | 08:50 PM
  #18  
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Originally Posted by dieselstroke
one question on if a code is stored, would it show a light ''check engine soon'' or
''service engine soon'' before it would throw a code? I have thought about taking
it in, but ya know how time just runs away from you, hehe. Thanks
There are a few codes that won't trigger the SES or CEL, but most everything that would affect power and driveability will trigger the light.
 
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Old Nov 11, 2004 | 08:52 PM
  #19  
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From: whitney
hmm, I've never seen either light come on, ever. But that doesnt mean a code isn't
stored?
 
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Old Nov 11, 2004 | 09:17 PM
  #20  
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Right...there most likely will be a PO603 code stored, but that's not anything to worry about, nor would it affect how the truck runs.

Never hurts to check though, unless you are paying somebody $70.00 to hook it up just to find nothing.
 
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Old Nov 12, 2004 | 12:52 AM
  #21  
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Originally Posted by dieselstroke
hmm, I've never seen either light come on, ever. But that doesnt mean a code isn't
stored?
With the 60HP Diablo Predator setting I'll run that SES light every time going up a steep hill or pulling boat etc. So I run 40Hp and seldom get the "light" now. I wonder at what boost setting that SES light comes on??? Anyone with some better knowledge???
 
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Old Nov 12, 2004 | 01:01 AM
  #22  
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From: colorado
Originally Posted by 99PSDCREW
With the 60HP Diablo Predator setting I'll run that SES light every time going up a steep hill or pulling boat etc. So I run 40Hp and seldom get the "light" now. I wonder at what boost setting that SES light comes on??? Anyone with some better knowledge???
over 24 psi the map sensor will start to defuel the engine and activate the ses light. if you put a boost releife valve in the map line it will take care of that
 
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Old Nov 12, 2004 | 01:04 AM
  #23  
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From: colorado
Originally Posted by cookie88
There are a few codes that won't trigger the SES or CEL, but most everything that would affect power and driveability will trigger the light.
when my cam sensor went out it did not light the ses nor did it come on when my EBPV sensor went out, and both have alot to do with the driveability of the truck?
 
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Old Nov 12, 2004 | 01:40 AM
  #24  
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Originally Posted by wlihntr
when my cam sensor went out it did not light the ses nor did it come on when my EBPV sensor went out, and both have alot to do with the driveability of the truck?
I agree never got a SES light for my CPS when it went out. Didn't get a SES light for the wastegate malfunction code that was stored when I disconnected my wastegate either. Both greatly effect the performance of the truck.
 
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Old Nov 12, 2004 | 04:05 PM
  #25  
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When the EBP sensor fails, the PCM simply disables the exhaust backpressure system with the valve in the open position, no effect on normal operation, other than cold weather idle.

Similar situation with the wastegate control system. When it fails the wastegate just will not open, which as we all know will improve the engines performance.

Not sure why the cam sensor often fails to trigger the SES, it should. Maybe there just isn't enough time from the signal loss to the engine dying to trip the light.
 
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Old Nov 12, 2004 | 04:08 PM
  #26  
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From: whitney
well I unhooked my ebpv yesterday, seems to drive easier. But since im going to sell
her before to long, i'm probably not gonna get the pcm scanned, even tho it should
be done, lol.
 
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