Mitsubishi Space Star P1260 Engine Trouble Code

Powertrain Code P1260

What is Mitsubishi Space Star P1260?

Mitsubishi Space Star P1260 code can indicate a faulty oxygen sensor, which may eventually damage the catalytic converter (repair cost: $2,000–$2,200). Professional diagnosis costs around $200–$210. Oxygen sensors are often straightforward to replace — check your owner's manual for location and instructions. This issue should be addressed promptly to prevent further damage.

P1260 on the Mitsubishi Space Star

Many Mitsubishi Space Star drivers first encounter P1260 as a result of worn ignition coil packs. The design of the Mitsubishi engine bay can trap heat near these components, accelerating wear beyond the typical service interval.

P1260 Mitsubishi Space Star Engine Diagram

Code Information

Code Type:OBD-II Powertrain (P) Trouble Code
System:Powertrain
Vehicle:Mitsubishi Space Star
Brand:Mitsubishi
Model:Space Star
Code:P1260

P1260 Mitsubishi Space Star Symptoms

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Check Engine Light

Illuminated Mitsubishi Space Star dashboard warning

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Engine Stalling

Engine stops unexpectedly or misfires

Performance Issues

Reduced power or acceleration on the Mitsubishi Space Star

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Starting Problems

Difficulty starting the engine

Poor Fuel Economy

Increased fuel consumption on the Mitsubishi Space Star

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Increased Emissions

Failed emissions test due to P1260

P1260 Code Structure

Understanding what each digit means in the P1260 powertrain trouble code:

P 1 2 6 0
Powertrain Code Fuel And Air Metering Manifold Absolute Pressure/Barometric Pressure Circuit High Input Cylinder 4 Contribution/Balance Fault Shift Solenoid E Performance or Stuck Off

How to Fix Mitsubishi Space Star P1260

Diagnostic Steps:

Regarding P1260, carefully inspect the wire harness near the intake manifold bracket, best accessed from below near the oil filter. Look for chafing, pinching, or damaged insulation.

Repair Solution:

Verify all electrical connections are clean and tight. Check for damaged wiring, especially in high-heat or high-vibration areas. Use manufacturer wiring diagrams for accurate diagnosis.

Technical Notes:

P1260 on electronically controlled automatic transmissions relates to shift solenoid operation. The solenoid actuates hydraulic circuits controlling clutches or bands for gear changes.

Mitsubishi Space Star P1260 Repair Cost

A Mitsubishi Space Star P1260 fault caused by ignition coil failure costs roughly $90–$160 per coil including labour. Replacing all coils simultaneously — rather than one at a time — is recommended because coils typically age at similar rates. This preventive approach keeps total cost below $500.

P1260 Description

P1260 OBD-II Trouble Code: Theft Detected Vehicle Immobilized is one of the definitions for the P1260; however your vehicles manufacturer may have a different definition for the P1260 code. Please check below for your specific

Main Cause

The primary reason for P1260 OBD-II Engine Trouble Code is: Manifold Absolute Pressure/Barometric Pressure Circuit High Input.

Common P1260 Misdiagnosis on the Mitsubishi Space Star

The Mitsubishi Space Star purge valve for the EVAP system is located in an area prone to heat damage. It is often overlooked in favour of replacing the carbon canister ($120–$200) when the valve itself ($25–$50) is the failed component for P1260.

DIY Repair Guide: P1260 on Mitsubishi Space Star

When replacing sensors on the Mitsubishi Space Star, always use anti-seize compound on the thread and dielectric grease on the electrical connector. This simple habit prevents the most common causes of sensor-related callbacks after repair.

Preventing P1260 on the Mitsubishi Space Star

The Mitsubishi Space Star EVAP system requires the fuel tank breather hoses to be flexible and crack-free. A visual inspection at every oil change prevents the slow vacuum leak that triggers P1260 without any drivability symptom.

Frequently Asked Questions — Mitsubishi Space Star P1260

Q: My Mitsubishi Space Star has P1260 but no drivability symptoms — is that possible?
A: Yes. Some fault conditions, particularly those involving EVAP system leaks or marginal sensor readings, store codes without producing noticeable drivability symptoms. These are called memory faults and still need to be addressed because they will eventually cause performance issues.

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