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.
How do you test a vtec oil pressure switch?
To test for continuity on the vtec switch, set the meter appropriately (like picture) and touch one lead to each of the two pins on the vtec switch itself. To test for continuity of the vtec circuit in the ECU, you woud touch one lead to each of the pins in the unplugged wiring harness.
Why is my Honda Accord p1259 not working?
This is facilitated by sending oil into the VTEC system, which changes the engine timing. A good rule of thumb is that if the P1259 code sets at 4000 RPM or below, it’s usually the VTEC pressure switch wiring issue or bad switch. If it is set at 4000 RPM or greater, it’ll usually be an oil related issue.
What does OBD 2 fault code p1259 mean?
What Does Code P1259 Mean? OBD II fault code P1259 is a manufacturer specific code that is defined by carmaker Honda as “VTEC System Circuit Fault (Bank 1)”, and is set on these applications when the PCM (Powertrain Control Module) detects a defect, malfunction, or failure in the electrical control/monitoring system of the VTEC mechanism on Bank 1.
Where is the p1259 sensor located on a Honda Civic?
It should be noted though while that code P1259 specifically refers to a problem in the VTEC systems’ control/signal/monitoring circuit, some mechanical failure modes can contribute to this code being set and stored. Where is the P1259 sensor located? The image above shows the location of the VTEC oil control solenoid on a Honda Civic engine.
What causes a Honda VTEC code p1259?
Nonetheless, some other common causes of code P1259 could include the following- Failed or failing PCM, but note that since this a rare event, the fault must be sought elsewhere before any control module is replaced
This is facilitated by sending oil into the VTEC system, which changes the engine timing. A good rule of thumb is that if the P1259 code sets at 4000 RPM or below, it’s usually the VTEC pressure switch wiring issue or bad switch. If it is set at 4000 RPM or greater, it’ll usually be an oil related issue.
What’s the code for Honda Accord system malfunction?
I have a 99 Honda accord I put it in machine it says the code is P1259Vtec System malfunction.. I have had oil changed, New spark plugs,New Fuses,Oil Filter,Oil treatment,Oil system cleaner,Oil pressure switch,Air Intake system Cleaner,replaced Sender Unit. Went to Get Smogged and It passed EVERYTHiNG Except check engine light…
When do I get an error code p1259?
Error Code P1259 is detected when there is a problem in the VTEC oil pressure switch or at the VTEC solenoid valve circuit. As with other error codes, Error Code P1259 activates the Check Engine light and registers the code to the vehicle’s memory system.
What is the VTEC oil pressure switch error code p1259?
Error Code P1259 is detected when there is a problem in the VTEC oil pressure switch or at the VTEC solenoid valve circuit. Common Symptoms. As with other error codes, Error Code P1259 activates the Check Engine light and registers the code to the vehicle’s memory system.