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3,580 Posts
Discussion Starter #1
well i have been having problems with my car going into failsafe mode all the time and i finally got a CEL...it says "P0506 idle ctrl
Sys rpm Lo exp" what does it mean? i hope it solves my problem :sorry
 

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The Despised Vert
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3,557 Posts
did you check for TSB's?
 

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Semper Fi
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4,181 Posts
are you tuned? what's your idle set at? whats your mods?
 

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623 Posts
A code like that sets when the idle speed is lower than what the PCM wants to see. Possible problem is an air leak, tuning issue or TB (electronics).
 
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