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#1
02-09-2012, 06:49 PM
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1989 LeSabre error code 48
My '89 LeSabre has begun idling high when in Park, but as soon as I put it in gear (Drive or Reverse, doesn't matter), the idle drops down. The error code is a 48, which I can't find in the code charts. Anyone else had this happen & can point me in the right direction? BTW, it's also been giving a code 63 for a while now, which has to do with the cruise control. Since the cruise doesn't work on this car anyway, I've ignored the error, but if it's something that's a quick fix I'd appreciate any advice on that one too.
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#3
02-10-2012, 12:00 AM
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Re: 1989 LeSabre error code 48
Code 48
4 flashes, pause 8 flashes Misfire Diagnosis. Check the ignition and fuel systems. The older model ECM cannot detect individual misfires, only the units responsible for firing. You could have a problem with the cam sensor, crank sensor, ICM, coils, or associated wiring.
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