P1259 refers to Vtec system malfunction.
air/fuel ratio problems p1259 Honda civic/Honda accord
With a scan tool.
Trouble code P1259 means: VTEC SYSTEM B1 FAILURE
Trouble code P1259 means: VTEC SYSTEM B1 FAILURE
There are pages and pages of things that can cause a check engine light. You need to have it checked with a scantool. Then the code can be diagnosed and repaired.
vtec system malfunction
Check engine codes on Honda vehicles such as a 1992 Honda Civic have to be manually reset. To do so, remove the ECU fuse located inside the engine bay.
vtec malfunctions are mostly due to oil pressure issues. u might just be low on oil and its unable to create the pressure it needs to operate correctly
Code P0135 means: Front HO2S Heater circuit Fault (Sensor 1)
There are pages and pages of things that can cause a check engine light. You need to have it checked with a scantool. Then the code can be diagnosed and repaired.
Diagostic codes P1259 indicates a problem with the VTEC control system on your car. There is an excellent article found here, and also provides a method of diagnostic the problem. It shows you if it could be a wiring/sensor problem, or a oil pressure/clock problem. most likely cause is excessive engine revving or jack rabbit starts http://www.asashop.org/autoinc/jan2005/techtips.htm
code 34 honda civic