SOURCE: 2001 Honda Civic 1.7 L VTEC Engine. The VTEC does not work
dealer only diagnostics,this vehicle uses encrypted software and evan if you get it too read it will show the wrong codes for the faults.
SOURCE: 2001 honda civic obd code
reset the ecu pull #6 fuse 15a for 10 msec. check oil level fill if needed. start engine hold at 3 grand for at least 2 sec road test if still comes back 1259 repeat 2 times. If it is gone it is intermit problem check for loose terminals at VTEC solenoid vavle oil pressure switch and the ECM/PCM. If you still have the code turn ignition off remove resonator disconnect the VTEC oil pressure switch 2p connector check for contnuity between VTEC oilpress switch terminals 1 and 2 if none replace the oil pressure switch. if yes measure voltage between ECM/PCM connector B9 and body ground. Voltage? repair open wire between B9 and the oil pressure switch. If no than the ECM/PCM will need to be checked for the latest software and reprogrammed to be further diaged. This will only be able to bedone at the dealer.
SOURCE: honda civic vtec 1995 - 1998 engine wiring diagram
Go to your local library and ask the Librarian to get you on-line to the Automotive Repair Reference Center, and then to the EBSCO database...you will find all of your wiring diagrams there.
SOURCE: I have a 1997 Honda Civic with the vtec engine. I
If the engine calls for a 5w 30 weight motor oil,then stick with it,and use a blend,or full synthetic oil,castrol is the best,and use this fuel treatment,if you want to see a difference in fuel usage ,LUCAS fuel treatment,use it with as less as possible,fuel.It will work better,to clean the fuel system,and the injectors.Make sure the battery is real good,and check the alternator at the battery with engine running,it should read,13.65 volts,to 14.25 volts,with everything on,anything less,is not enough,replace the alternator.If the charging system,battery included,is not up to par,then the alternator works hard all the time trying to charge the battery up to full ,and it never does,because of ,either the battery is not in good shape,or the alternator is charging too little,and when the alternator engages,it pulls down on the engine,therefore using fuel more.
Testimonial: "Thanks for the great input! I'll check it out this weekend!"
SOURCE: belt routing diagrams for a 1995 honda civic
CLICK on the following LINK. It has all the Diagrams for your Belt that you will need.
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http://www.2carpros.com/car_repair_information/year/1995/make/honda/model/civic/1995_honda_civic_drive_belt_routing_diagram.htm
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