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Ok any help out there? I picked up a 98 Escort LX 4dr Auto AC 63K miles.
Car ran great on the way home afew days latter it was not idleing right. Took apart all of the intake system idle air control ect cleaned everything new airfilter installed pcv , plugs look good so I regaped them at .054 spark plug wires look great. Car ran great but still low idle. A day later I got a code 1401 bad DTFE (car running but on the open road loosing power & then it catches its breath & runs fine ) so I replaced the DTFE & added TECHTRON to the fuel tank , car ran great again & I put a thin pice of metal on the linkage plate where the non adjustable screw touches just to raise the idle to just over 800 rpm. Now the car ran really good beat the balls off it 90 mph and it took what ever I gave it . Next day new code & car running like shit cyl 2 missfire went out purchased new plugs ( motorcraft platnum ) gapped & installed ( old plugs looked fine ) reseated spark plug wires both ends & reseated fuel injection wires. car running great dumped in a can of restore & drove it for 1hr with no problems. Next day started car running with missfire again check engine light came on reved engine she caught her breath engine light went out & she is running fine again. Threw out this process the weather was wet damp with a few dry days inbetween but mostly damp & lots of rain. Car was sitting for a long time approx 3 months before I purchased it. Did not change fuel filter which I will do next. Any tricks that will make this car run better or simple after market items that will solve some of these issues ??
Also the ODB I was using told me the O2 sensors and the EGR was good also temp ect all good.
 

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If you don't mind paying $40, buy a set of Motorcraft plug wires. While you're at it, get the proper wire routing looms off of a junker (also available new for about $7 each). The wires shouldn't be in tight contact with each other, especially if they're old and worn.
 
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