My 2000 eldorado esc has been driving rough. Engine misfiring, SES light flashing, but only while accelerating, stays lit while idle. Drives fine for about.20 minutes, but once engine is heated, begins to misfire. Had this same issue 2 years ago, replaced plugs, boots, and front ignition coil. Problem was fixed. This time around, we replaced the plugs, boots, and rear ignition coil, but the problem remains. Any ideas on what it Could be?
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Monday, March 23rd, 2015 AT 1:52 PM