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  1. I have a 1990 Deville 4.5L 4D sedan I picked up about a week ago, the car has been garaged most of its life and the mileage just rolled over 101,000. Before I picked up this car I know it had been sitting outside a garage for about 6-9 months, and was filled with bee's. Just before I picked up the car they replaced the distributor, spark plugs and plug wires, replaced the main gasket on the bottom of the transmission, changed the tranny oil, charged the battery, and topped off the other fluids. I have run a few oz of seafoam through the brake booster vacuum line to help clear out the cylinders and what not. The the car runs very rough still, it has a very rough idle from cold start and has very little power at low RPMS. Occasionally while at speed it seems to have power at low RPM's, not too often. It had about 5 gallons of 6 month old gas in it when I picked it up, I added some gas treatment to extend the shelf life of the gas, and filled it up with new gasoline. I think im currently getting about 8 mpg with the way its running, half town half freeway driving. The body and interior are in great shape, and for only 101k miles on it I feel like I can breathe some life into this car and bring it up shape. I pulled the codes off the diagnostics on the console and got as follows: ..e. E30 E32 E52 E98 ..f. F47 .f.f. F47. I looked up a code index and didnt really know what they all meant, maybe you could give me some pointers. I may be American, but this car is Foreign to me. on top of it running very rough It seems to have some electrical problems, The drivers windows doesnt move, and the other 3 windows will only roll down but they will not roll up without gently pulling on them and guiding them up while you hold the button down. It seems to have some electrical drain somewhere, like all the components are getting enough juice. Even the cigarette lighter can only seem to get the lighter to heat up half way. I have disconnected the stereo, as I was told that was draining the battery and it might kill the battery over night. Im new to the forum and was hoping to get some pointers here, thanks!
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