315650 – COBB Fuel Pressure Sensor Kit (5-pin)
Subaru STi 2007 - 2020
Subaru WRX 2008 - 2014
Legacy GT MT 2010 - 2012
Outback XT MT 2010 - 2012
312650 – COBB Fuel Pressure Sensor Kit (3-pin)
Subaru STi 2004-2006, Subaru WRX MT 2006-2007, Forester XT MT 2005
312660 – COBB Fuel Pressure Sensor Kit (3-pin)
Forester XT MT 2006 - 2008
Legacy GT MT 2005 - 2009
Outback XT MT 2005 - 2009
Congratulations on your purchase of the COBB Tuning Fuel Pressure Sensor Kit. The following instructions will assist you through your installation process. Please read them first BEFORE beginning the install and familiarize yourself with the steps and tools needed. If you feel that you cannot properly perform this installation, we HIGHLY recommend you take the vehicle to a qualified and experienced automotive technician.
IMPORTANT! Installing this kit will require custom tuning or utilizing an appropriate Stage Power Package map that allows the TGV to be used for sensor input. Please consult with COBB or an authorized ProTuner in your area.
This Kit is intended to be installed in conjunction with the Cobb Flex Fuel kit for real time Fuel Pressure feedback - a safety feature required for OTS maps. Please refer to the Flex Fuel Kit page for instructions on removing the fuel lines.
Part List
- 1 x Fuel Pressure Sensor
- 1 x COBB 1/8 - 10mm Billet Fuel Line Adapter
- 1 x TGV Harness
- 4 x Zip Ties
- 1 x Loctite 545 thread sealant
Tools Needed
- 5/16" or 8mm Fuel Line Disconnect Tool (Available at Professional Tool Sources)
- 1/2" 7/8" Deep Socket
- 1/2" Ratcheting Wrench
- 3/16" Hex key
- Flat Head Screwdriver
- Diagonal Cutters or Scissors; (Hose Cutting tools suggested for straightest cuts)
- Safety Glasses
- Rags
- Silicone Spray or Similar
Installation
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First off you'll need to decide where you're going to install the sensor, use the table below to find the best place for your sensor. While it can work in other positions these are where we typically recommend they get installed.
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315650, 312660
Where to install the sensor
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Installs straight onto the provided AN adapter for the fuel rails
| Note |
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While it can be installed onto the flex fuel sensor this can cause problems with the length of the pre-made lines and cause things not to fit or rub in places so if you choose to install it in this way, make sure everything fits appropriately. |
312650
2005-2006 non-quick connect fuel line cars
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Installs straight onto the provided AN adapter for the fuel rails
| Note |
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While it can be installed onto the flex fuel sensor this can cause problems with the length of the pre-made lines and cause things not to fit or rub in places so if you choose to install it in this way, make sure everything fits appropriately. |
Installation Prep
Important! Before removing your fuel line, make sure to discharge existing fuel pressure from the system. Failure to do so can result in property damage, fire, and severe burns!
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Installation Using Billet Adapter
Using Billet Adapter
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There are two locations where you can install the Fuel Pressure sensor. You can install it to A) directly to the feed line near the intake manifold, or B) onto the COBB Ethanol Content Sensor depending on our chart above.
| Warning |
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Failure to install your fitting in the correct location can lead to damage to your vehicle or the adapter that will not be covered under warranty. |
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Installation On COBB Fuel Rail and Lines
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| Note |
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Do not put any thread sealant onto the AN fitting ends, only on the pressure sensor where it installs to the fitting. |
Harness Installation
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Calibration Data
Fuel Pressure Sensor Input Selection = TGV Right (click to expand)
Sensor calibration: (click to expand)
0.5 V = 0 psi
4.5 V = 100 psi
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Subaru Installation Instructions
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| Child pages (Children Display) | ||||
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