Gravedigger Focus ST & Mazdaspeed Ethanol Content Sensor Kit by Graveyard Performance

When tuning your Focus ST / Mazdaspeed on Ethanol, it is crucial to have the correct Ethanol content in your tank to avoid potential lean conditions that could cause damage to your motor. Skip all the guess work and tedious testing every time you fill up by using this ethanol gauge made by Innovate paired with the correct fittings to allow this sensor to easily adapt into the factory fuel line system on your Mazdaspeed 3, Mazdaspeed 6 or Focus ST.

This kit is also useable with most platforms using 5/16th fuel line connections!

What's Included?

Innovate MTX-D Ethanol Contract Gauge Kit
Innovate Ethanol Content Analyzer
Gravedigger 360 Degree Push Lock Fuel Line Fitting Kit
Fuse Tap w/ Fuses

Simple installation for Focus ST:

Specialty tools needed for install:
5/16th Fuel Line Disconnect Tool

1. Disconnect Battery
2. Remove Battery and Battery Box
3. Remove Cold Air Intake for more clearance
4. Let car sit for an hour for fuel pressure to evacuate, or crack the fitting on the feed line going to the HPFP to release pressure.
5. Use a fuel line disconnect to separate the fuel lines that run from the fire wall to the HPFP feed line.
6. Install the ethanol sensor using the quick disconnect swivel fittings.
7. Remove glove box and feed the gauge harness through the firewall grommet behind the glovebox into the engine bay.
8. Run harness power to Fuse F87 under the glovebox.
9. Run harness ground to bolt on chassis under the glovebox.
10. Plug harness into the ethanol content sensor
11. Install the gauge in the glovebox and connect the main harness to the gauge.
12. Re-install battery, battery box, glove box, intake.
    
    

    🔧🔧 Installation Difficulty: Intermediate
    ⏱️ Time Required: 1.5 hours
    🔧 Tools Needed: Basic tools, wire strippers, electrical connectors
    ⚠️ Wiring Required: Some electrical work needed
    💡 Follow wiring diagrams carefully for best results