How Do I Fix My Honda P1259 Code?

by | Last updated on January 24, 2024

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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.

What is VTEC oil pressure switch?

VTEC stands for

Variable Valve Timing with Electronic Control

. … The variable valve timing oil pressure switch is a normally open switch located at the VVT solenoid. When the VTEC oil pressure switch closes, the voltage should drop to zero. This is how the PCM knows if oil pressure was applied to the VTEC system.

How do I know if my VTEC solenoid is bad?

  1. Check Light comes on. Since today's modern cars are controlled by an Engine Control Unit (ECU), virtually all individual components are monitored by the ECU. …
  2. Engine oil is dirty. …
  3. Rough engine idle. …
  4. Decrease in fuel economy.

Why does my VTEC solenoid keep going out?

The fact the

solenoid continuously fails may indicate that electrical side or mechanical side behind it is not working properly

. … These assemblies can clog and cause issues with the solenoid. You can replace or clean the assembly if needed. If the assembly is fine, you will want to turn to electrical testing.

Can I drive with a P1259 code?


It's safe to drive the car with the

code, but you need to check the engine oil and make sure it's not low and causing the problem.

How much does it cost to replace a VTEC solenoid?

The average cost for a Variable Valve Timing Control Solenoid Replacement is

between $198 and $253

but can vary from car to car.

How do I fix my VTEC system malfunction?

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.

How do I bypass the vtec oil pressure switch?

  1. Locate the VTEC Oil Pressure Switch Plug on your engine harness (this wire comes from OBD1 ECU Pin D6).
  2. Simply TAP this wire into the VTEC Solenoid Valve Wire (the VTEC solenoid wire comes from OBD1 ECU Pin A4).

What are the signs of a bad oil pressure switch?

  • The Oil Pressure Light is on. The oil pressure gauge inside your car will give you a good indication as to the condition of the engine's oil levels. …
  • The Oil Pressure Light blinks constantly. …
  • Oil pressure gauge is at zero.

Why wont my VTEC engage?

This is because VTEC requires a

third center rocker arm and cam lobe

(for each intake and exhaust side), and, in the SOHC engine, the spark plugs are situated between the two exhaust rocker arms, leaving no room for the VTEC rocker arm.

What does a VTEC sensor do?

VTEC (Variable Valve Timing & Lift Electronic Control) is a system developed by Honda

to improve the volumetric efficiency of a four-stroke internal combustion engine

, resulting in higher performance at high RPM, and lower fuel consumption at low RPM.

What is the purpose of a VTEC solenoid?

What does the VTEC solenoid do? Given that VTEC is Honda's fancy name for their variable valve timing system, its job is to advance the timing when extra power is necessary for the upper rev range. The role of the VTEC solenoid is

to control the flow of oil to the internal galleries of the overhead camshaft.

Can you drive with bad VCT solenoid?

But the truth is that

you shouldn't ever drive around with a bad VCT solenoid in your vehicle

. It could prove to be catastrophic in some cases if you're not careful. You might get lucky and be able to drive around in a vehicle with a bad VCT solenoid for a little while.

Can you drive with a bad variable valve timing solenoid?

Can You Drive with a Bad VVT Solenoid? Even though you may technically be able to continue driving with a bad VVT solenoid,

the issue can cause damage to additional parts

, such as the VVT actuator. So, you should address the issue as soon as possible.

Why does my Honda leak oil?

Oil Pan. The oil pan is located at the bottom

of the engine and can be damaged by road debris

. If that happens, a hole may be created in the pan, which would cause a leak. Additionally, the pan itself can get worn or damaged, leading oil to seep out.

David Evans
Author
David Evans
David is a seasoned automotive enthusiast. He is a graduate of Mechanical Engineering and has a passion for all things related to cars and vehicles. With his extensive knowledge of cars and other vehicles, David is an authority in the industry.