WOT problem and P0300 - 2000 Eldorado
I have a 2000 ELDO esc with about 68k. owned the car since new and have kept up with all the maintenance. This car has never given me any problems till now. Recently I was on a trip and about 200 miles into it the trip the misfire light started to flash , I was cruising at 75 to 80 mph. I slowed down to get over to the right lane and by the time I got there ther light went off, so I took it easy for a while . Twenty miles later same thing . I got to my destination checked as much as I could everthing looked ok and the car did not throw any codes or had any stored codes (had my scanner with me ). During the week I drove around with a mix of highway and rual driving no problems . A week later back on the road about 90 miles into the trip here we go again flashing light. The rest of the trip the light was going of and on, with no real interval schedule
It seemed to be ok if I kept it at about 65 mph but that was no for sure cure . I got mad and started jamming the pedal down and it finally threw a p0300 (Random misfire). back at home in traffic and cruzin around car runs great . Sometimes when WOT from a dead start no problems . On highway when I WOT to pass the misfire light goes on but it quickly goes out . Any Ideas on this ? I got a trip comming up in about a month and I dont want to have any problems on the road. Sorry this is so long but these are the facts . Thanks in advance for any help you can offer.