Hi mate, i got problem, i got honda accord vtec 2001 a/c, so where is fuel filter, and how its looks,cant find,cant see.. i dont understand from that car enything, i know that is fuel filter, becase car display's engine problem, and engine is shaking, like fuel is enought.. and drive with that car is abbsalutly imposible.. p.s sorry for enlgish

Here is the explanation from engine-codes.com

P1259 Honda Description
The VTEC system activates the VTEC solenoid valve by command from the powertrain control module (PCM), and it charges/discharges the hydraulic circuit of the VTEC mechanism that is installed in the valve system to switch valve timing between Low and High. The PCM monitors oil pressure conditions in the hydraulic circuit of the VTEC mechanism according to the VTEC oil pressure switch downstream of the VTEC solenoid valve. If there is a disparity between oil pressure condition in the hydraulic circuit that is determined by the PCM command, and the oil pressure condition that is determined by the status of the VTEC oil pressure switch, the system is considered faulty and a DTC is stored.

Read more: http://engine-codes.com/p1259_honda.html#ixzz3aiInXy9j

you may have to change the ecu , to match the vtec, because i dont think you can reprogram those ecu units.

ENGINE OIL pressure, sender. NO ENGINE STATED so I FAIL>
I4 or V6 engines? and displacement.

why? getting a warning light or PCM scan code for pressure.

please do provide the context of the question, what did you SEE?

ENGINE MAINS or VVT-pressure Vtec switch?


you can look anything at alldata.com so can you. or the FSM.

let me guess. here. VVT failure. vtec
http://www.youtube.com/watch?v=7ZvfPbCz3cc

maybe ur altinator mate,check the charging,and tighten ur timing belt i guess,try it

Yes, the codes do indicate the problems and certainly lack of power.The P1259 is set when there is a problem in the VTEC Oil Pressure Switch circuit or VTEC Solenoid Valve circuit
P1164 and 1149 are both Faulty Air/Fuel Ratio Sensor 1

If the CEL is not on, then the problem is intermittent. The first step is to locate the VTEC switch and A/F Ratio sensor, and verify the connections are OK. Having both of these fail together would be odd. I suspect the main culprit is the VTEC Oil Pressure Switch.

i have a honda accord 3.0 vtec and this is what i have Manual it works for me i hope i works 4 u 2 GOOD LUCK

this is the only manual that i could find online for a honda accord 2001 http://www.ahm-ownerlink.com/assets/OWNERLINK/Model/own_man/2001Accord.pdf it work just fine for my and i have a accord 2001 sport vtec 3.0

Fuel filter is located in the gas tank no need to change, to my knowledge this year wasn't equipped with a pollen filter. Good luck and thanks for using fIx ya

p1259 is vtec system fail. check your oil level and condition. will prob need a vtec sol and filter and poss the vtec pressure switch.

I have a 1998 Honda Accord EX. I had the check engine light come on as well and I had the code read by PepBoys. The code was:P1259 or VTEC SYSTEM Malfunction.
I Don't know jack about were to start to fix this problem, so I bit the bullet and took the car to my Honda Dealer. The problem was checked out and was told this.
( REPLACE VTEC VALVE ASSEMBLY)
I had them do the work because I dont know how to do this. So after $204.00 in Labor and $162.29 in parts, for a grand total $366.29, The car was fixed!!!!!!! Run's great and no check engine light on anymore. So to help you out as best I can, here is the numbers that are on my work sheet. I dont know witch numbers represent the part number but this is how it looks on my paper.

1 15810-PAA-A02 8108797-90870 VALVE ASSY, SPOOL $150.75

1 15825-P0A-015 8161598-15999 FILTER, SPOOL VALVE $11.54

There you go! I hope this gives everyone a place to start. maybe get your self a Haynes Repair Manual (#42014 is for the 1998-2002 Honda Accord, all models) and try to do the work your self. Good luck to all of you form Donald M. in SoCal.