What does a VTEC spool valve do?
At the switch point a solenoid is actuated that allows oil pressure from a spool valve to operate a locking pin which binds the high RPM rocker arm to the low RPM ones. From this point on, the valves open and close according to the high-lift profile, which opens the valve further and for a longer time.
What is the code P1259 Honda Civic 20002?
|P1259 HONDA Meaning 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 the P1259 code is stored.
How do I fix my Honda P1259 code?
The most common cause for Error Code P1259 or VTEC system malfunction is low oil pressure. Thus, make sure you check your oil if it’s due for service. Change oil and filter if necessary. Clear the codes and then give it a try.
When is the p1259 code detected in a powertrain?
When is the P1259 code detected? The Variable Valve Timing and Lift Electronic Control (VTEC) system activate the VTEC solenoid valve by the 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.
What causes a VTEC system error code p1259?
This error code can be caused by multiple of factors, such as: 1 Low oil pressure or low engine oil level 2 Defective VTEC solenoid 3 Open or shorted VTEC harness 4 Poor electrical connections in the VTEC circuit 5 Defective VTEC oil pressure switch More …
What are the possible causes of Honda p1259?
P1259 Honda Possible Causes. Low engine oil level or oil pressure. Faulty Variable Valve Timing and Lift Electronic Control (VTEC) solenoid. VTEC Solenoid harness is open or shorted. VTEC circuit poor electrical connection. Faulty VTEC oil pressure switch.
What does p1259 stand for in immobilizer code?
There are no codes directly related to P1259. Any problem such as abnormal input or system voltages, intermittent faults, or high resistances in any part of the immobilizer control circuit will set code P1259. Below are some examples of definitions of code P1259 that do not relate to the anti-theft system.
Where is the VTEC system malfunction code p1259?
Re: VTEC System Malfunction code P1259 has appeared. (… Check your variable valve timing oil pressure switch, it’s located on the passanger side just before the intake manifold, also the solenoid may be dirty or bad. some people say to clean the screen but that requires removing the entire assembly where these two units are… Good luck
When is the P1259 code detected? The Variable Valve Timing and Lift Electronic Control (VTEC) system activate the VTEC solenoid valve by the 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.
What do you need to know about Honda p1259?
P1259 Honda Description. 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…
There are no codes directly related to P1259. Any problem such as abnormal input or system voltages, intermittent faults, or high resistances in any part of the immobilizer control circuit will set code P1259. Below are some examples of definitions of code P1259 that do not relate to the anti-theft system.