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Thread: car is dieing at idle. P048 current trouble code.

  1. #46
    cadillac_al is offline Cadillac Owners Connoisseur
    Automobile(s): 70 Deville 77 Fleet 78 Seville 92 Deville 03 Deville
    Join Date
    Feb 2007
    Location
    Maine
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    55
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    3,310

    Re: car is dieing at idle. P048 current trouble code.

    Gee this threads getting old. I still don't see any mention of a vacuum reading even after it's been to a shop. Does the car have good power while it's running? I was thinking if it had low vacuum it might be a clogged catalytic. If the car still has good power it may not be. If the engine pulls 18 in of vacuum then everything is working normally. Did anyone try to adjust or replace the ISC? That's what actually controls the idle. The EGR code is puzzling since it seems to be working and it has now been replaced too. I have had a clogged cat cause an EGR code in the past.


  2. #47
    cadillaceldo93 is offline Cadillac Owners Member
    Automobile(s): 1993 cadillac eldorado
    Join Date
    Nov 2010
    Age
    28
    Posts
    47

    Re: car is dieing at idle. P048 current trouble code.

    im posting again lol the problem seems to have subsided for now. the weather is warm now and i changed out a bad battery. idk if either one of those could mean anything.

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