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Author Topic: ECM REPLY  (Read 2567 times)

NiteLord

  • Jr. Member
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  • Posts: 59
    • 91Cap,94Cap,86FieroGT,94G.C
ECM REPLY
« on: June 13, 2017, 07:01:43 PM »
...When the Vehicle is at operating Temp. the ECM will not flash any codes only when engine has cooled off..any ideas why and should this be something to be concerned about..??..
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Snigalfriz

  • Full Member
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  • Posts: 211
    • 1991 NA Capri
Re: ECM REPLY
« Reply #1 on: June 26, 2017, 05:57:41 PM »
NiteLord,

What is the code?
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Why? I have more time than money, that's why I work on this car!

1991 Mercury Capri 5-sp
1992 Mercury Capri 5-sp swap
1999 Ford Contour SE 24v v6
2003 Lincoln LS
2007 Saturn Outlook XE AWD
2014 Chevy Cruze LT

NiteLord

  • Jr. Member
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  • Posts: 59
    • 91Cap,94Cap,86FieroGT,94G.C
Re: ECM REPLY
« Reply #2 on: June 26, 2017, 09:59:12 PM »
...25(Knock Sensor)..but only when the ECM will show that code is when the engine is cold..."no codes" at all when engine is warm
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chrispoe

  • Sr. Member
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  • Posts: 435
    • 91 BP Capri GT
Re: ECM REPLY
« Reply #3 on: June 27, 2017, 07:20:24 AM »
A fault code 25 is the fuel pressure regulator control solenoid
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NiteLord

  • Jr. Member
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  • Posts: 59
    • 91Cap,94Cap,86FieroGT,94G.C
Re: ECM REPLY
« Reply #4 on: June 27, 2017, 11:27:22 AM »
..well I seen that too on another ECM Code description  that its a FPRC, but I've had this car for 11 years and it's always read the 25 code, the car runs great...but that wasn't my QUESTION.."Why doesn't it show 'any' codes when engine is warm but does when cold..???.."....
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