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Showing results for tags 'Misfiring'.
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1997 Subaru Legacy Outback 2.5 A year ago I bought my 1997 Subaru Legacy Outback 2.5. It was in great condition and ran like a dream. The CEL was permanently on, the previous owner said it was a bypass (something to do with the exhaust?) and not to worry . Never had any issues with it until now. A couple of months ago it started occasionally not starting the first time I would turn the key….I would take the key out, reinsert it and it would start right up. I did notice that my key was kind of loose in the ignition and I would have to wiggle it to get the ding ding noise. I also noticed a lot of corrosion on the battery terminals. Three weeks ago I ran it (for the first time) so slow on gas that the fuel light came on., I put gas in and I noticed the fuel light came on a couple of miles down the road, but just for about a mile. It also lagged once going up a hill. The next morning it would not start at all….not push start and not by a jump. The battery drained down to nothing and stayed that way. Replaced the fuel filter. It then started with a jump, but the idle was rough and it wouldn’t stay running. Also blew out white-ish smoke for a bit. Had a gear head friend take a look….fuel to engine problem was suggested.He also noted that my O2 sensor wasn’t there (probably the bypass previous owner did and reason the CEL always on) He brought his code reader..but it wouldn’t run long enough to read anything. I replaced the fuel filter…..and the spark plugs….and got a new battery. Fuses have all been checked. It’s not the MAF either. Now it starts (still has the ignition issue), but it is misfiring and the check engine light is flashing. Any input would be much appreciated at this point. I live 15 miles out of town in a very rural area. So it has been devastating to my daily life (getting food, propane, auto parts store, and not being able to get to work for 3 weeks). -
I have a 2002 impreza 2.5 TS that was purchased at the beginning of this year. Check engine codes have come on and off over the last 9 months and the engine has progressively shown less power over time. I thought it was misfiring, because whenever I put any load on the engine it would chug like it was misfiring. Spark if good, coil pack is good, spark plugs are good. The chugging became worse and worse over time to the point where it would chug even with a small increase in speed or hill, and eventually one day just quit on the road and hasn't been able to start up since, (unless I give it a lot of gas and it was attempt to stay idle erratically). I put injector cleaner in the gas tank while it was still running, no improvement. The fuel pump noise come on when I turn the key to the on position. Where should I go from here? Pull the injectors and replace? Might it be something else? Codes: P0420: catalyst system efficiency below threshold P1507: idle air control system malfunction P0456: Evaporative system leak detected (very small leak) -
I've had my 1986 Subaru for a couple of years, always ran fine when I drove it. A couple months ago, it started sputtering and I had to keep the rpms at 4k in second to keep it from dying. I couldn't figure out the problem and I re did the vaccum on it, did an EGR delete (sort of) and nothing. For some reason I started it a couple days ago and it ran totall fine and I put a full tank in it and drove it for an hour an a half around town. Messed with some vaccum lines and it sputters heavily when I accelerate like it did before and it only runs fine at 4k (warmed up of coarse) it will idle with a miss and misfires heavily with lots of backfire when coming down. When I unplug the O2 sensor, nothing happens and I was curious if it being broken might have something to do with it. It does have a computer and a Hitachi carb. Most vaccum lines hold pressure and the vaccum advance doesn't work. Any help is greatly appreciated If you have any questions about the car or anything else, please ask
