1986 Honda Civic map sensor problem

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BOOK-SHELF12
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Engine Performance problem
1986 Honda Civic 4 cyl Two Wheel Drive Manual

so i have a honda civic 86 si. the problem is the ecu shoots me error code 0401 disconnect map sensor piping. so i replaced the map sensor and it worked for a day and then it was back to acting the way it was. it was hesitant and the car would jump up and down. i get bad gas mileage and i was running on the rich side. so i got it timed replaced the ecu and spark plugs. but none of that worked. so back to square one. im thinking its a vacuum leak, pcv valve, or egr... so what could it be??
Oct 2, 2010 at 10:22 AM
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RASMATAZ
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You have an 86 Honda how are you getting a P0401? This code applies to the EGR valve and vehicles over 96-present

Oct 2, 2010 at 12:16 PM
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BOOK-SHELF12
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i mean its x4x1 on the ecu didnt mean to make it confusing.
Oct 2, 2010 at 7:50 PM
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