Colin RedGriff Posted March 29, 2016 Share Posted March 29, 2016 I bought a 2005 1.8 Zetec a few weeks ago as a cheap runabout. Mostly its fine but there are a few things that are bugging me. The car has been regularly maintained and seems to be mostly in pretty good condition for a 10 year old car that has done 115K. I just put it through an MOT with no issues other than a blown side light bulb. Firstly the engine warning light comes on - I've got some OBD software so I can read and clear the fault - the fault code is p0171 system is too lean bank 1. I know this is usually caused by an air leak on the intake but I would have thought that would cause it to happen almost immediately the car was run. If I clear the fault; the car will run fine and the fault light will not come back on straight away. For instance I cleared the fault on Saturday and then proceeded to drive for over 200 miles without the light coming on. This was mixed motorway and town driving including heavy traffic and involved at least one stop, cool down and restart. The light came back on sometime on the way home on the motorway. Other times I've gone for days without the light coming on. Second issue is a misfire this only happens when the fuel gets down to about 1/4 full on the fuel gauge and is worst when going round right hand bends, roundabouts or right turns. The car will hesitate and misfire but once I straighten up it will clear and run fine. Idling on the drive the car runs fine and there's no indication of a problem. Is this likely to be just the gauge being wrong and the car actually running out of fuel, some sort of problem with the fuel pick up in the fuel tank or some other issue? The misfire and the engine warning light issues don't appear to be linked. The misfire will happen with the light not lit and the warning light can come on at any time. Lastly starting seems a little hit and miss. The car has never failed to start but it will sometimes take 2 or 3 attempts to fire. It is more likely to happen if the engine is warm but it has happened on a cold engine as well. Engine turns over nicely (the battery was replaced by a previous owner) and once it has started it runs fine. I've got a comprehensive set of tools and happy to do some spannering. Don't want to spend a lot of money getting a garage to fix it because the car isn't worth that much money. But I would like to get these niggly issues fixed. Any ideas of things to check or test? Quote Link to comment Share on other sites More sharing options...
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