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Discussion Starter #1
my truck has been acting funny for a couple of weeks, when i first start it in the morning it idles real low (350 - 500) untill it warms up then its fine(600-750). but today it started doing it even when it is warm. when i come to a stop it idles real low and dies and it started throwing a cel. i checked the codes and got 625(Electronic Pressure Control driver open in EEC) and 172(HEGO shows system always lean) i cant make any sense of this. what is Electronic Pressure Control driver open in EEC mean?
any help on this is greatly appreacated.
 

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Someone recently had this same problem but I can't remember who or what they did. Kind of a hard subject to search for so maybe they will see this and chime in..good luck! :beer
 

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Discussion Starter #3
well i replaced my iac and cleaned the throttle body and reset the computer. the idle went back to normal and it doesnt die anymore, but i am still getting the code 625(Electronic Pressure Control driver open in EEC)does anyone know what this mean?
 

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beakerf said:
well i replaced my iac and cleaned the throttle body and reset the computer. the idle went back to normal and it doesnt die anymore, but i am still getting the code 625(Electronic Pressure Control driver open in EEC)does anyone know what this mean?

That'd be a solenoid circuit faliure in your E4OD transmission.


Bob K.
 

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69 Bronco crawler, 85 Bronco dormant baja build, 93 Bronco cruiser, 05 F150 supercharged 5.4 tow rig
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that is an E4OD code of some sort regarding the line pressure control circuitry... almost sounds like a software problem in the EEC itself. i have a whole stack of e4od codes in my memory, i'm surprised that one hasn't come up yet :crazy
 
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