The P0660 trouble code on your older Mitsubishi likely points to a problem with the Manifold Tuning Valve Control Solenoid, often referred to as the VIC solenoid within Mitsubishi. This component plays a crucial role in managing engine performance and emissions. Unlike earlier models (like the 3000GT) which used an electrically controlled system (AIS), your vehicle utilizes a vacuum-controlled system, making the solenoid a replaceable part.
This article clarifies the function and replacement of the VIC solenoid in older Mitsubishi vehicles. The code P0660 specifically indicates a fault within the solenoid circuit or the solenoid itself, ruling out issues with the manifold or butterfly valves. The good news is that you won’t need a complete manifold replacement as with older, electrically controlled systems.
Replacing the VIC solenoid is a relatively straightforward process. The part number for the VIC solenoid is MR160676. When ordering, keep in mind that Mitsubishi might list it simply as “emission solenoid” due to their naming convention. This standardized naming helps avoid confusion as the same solenoid might be used for various applications across different models. Don’t be alarmed if your part arrives labeled “emission solenoid”—it’s still the correct component for the VIC system.
The MR160676 solenoid typically costs around $46 and is often readily available at Mitsubishi dealerships due to its relatively common failure rate. This affordability compared to replacing the entire manifold makes it a manageable repair for owners of older Mitsubishi vehicles. This design simplifies repairs significantly compared to the older AIS system which required a complete manifold replacement in case of failure. This distinction highlights the evolution of emission control systems in vehicles and the shift towards more serviceable and cost-effective solutions.
In conclusion, a P0660 code on your older Mitsubishi signifies a potential issue with the Manifold Tuning Valve Control Solenoid (VIC solenoid). Fortunately, replacing this part (MR160676) is a relatively simple and inexpensive fix, unlike the more complex and costly repairs required for older, electrically controlled intake manifold systems.
