The SCT X4 is a tuner that can be used to monitor a vehicle's fuel pressure. It requires an aftermarket sensor to be installed, which can be purchased separately. The SCT X4 has a gauge for turbo boost pressure, but some users have reported that it may need to be calibrated to get accurate readings. In addition to fuel pressure, the SCT X4 can also monitor other parameters such as battery voltage, FICM voltage, and FICM sync. It is important to note that not all sensors are E85 compliant, so users should ensure that their sensors are compatible with the type of fuel they are using. Overall, the SCT X4 is a useful tool for monitoring various aspects of a vehicle's performance and can provide valuable data for troubleshooting and performance optimization.
What You'll Learn
The SCT X4 can monitor fuel pressure with DataLink software
However, another user on the same thread disputed the representative's claim, stating that the computer does not monitor fuel pressure on that engine. A separate thread on mustang6g.com confirms that the SCT X4 can monitor fuel pressure, but only with an aftermarket sensor installed.
A user on powerstroke.org mentions using their SCT X4 to monitor various values, including turbo boost pressure, but it is unclear if they were able to monitor fuel pressure specifically.
It is worth noting that SCT offers a range of tuning products, and some older versions may not have the same capabilities as the X4. For example, a user on svtperformance.com inquired about monitoring fuel pressure with an SCT tuner but did not specify which model they were using.
Overall, while there is some conflicting information, it appears that the SCT X4 can monitor fuel pressure with the help of additional software and/or sensors.
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The stock computer already monitors fuel pressure
A stock computer already monitors fuel pressure. A representative at SCT claimed that the touchscreen extreme was capable of monitoring fuel pressure because the stock computer already does so. However, some users have contradicted this claim, stating that the computer does not monitor fuel pressure on their engines.
It is important to note that the SCT representative suggested that if fuel pressure monitoring is not visible in the menu, it can be added by downloading the DataLink software from the SCT website. This suggests that there may be ways to enable fuel pressure monitoring on the stock computer, but it is not inherently a feature on all engines.
Some users have opted for alternative methods to monitor fuel pressure. One user suggested purchasing a separate analog gauge, which is a cheaper option. Another user recommended installing a sensor and harness specifically for monitoring fuel pressure.
It is worth noting that the SCT X4 has been mentioned as a device that can be used to monitor fuel pressure, but it requires an aftermarket sensor to be installed. This indicates that while the stock computer may monitor fuel pressure, additional hardware or software may be necessary to access and view this information.
In summary, while the stock computer may have the capability to monitor fuel pressure, it is not always visible or accessible to users. Users may need to take additional steps, such as downloading software or purchasing additional hardware, to fully utilize this functionality.
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The SCT X4 has a gauge for turbo boost pressure
The SCT X4 can be used to monitor other parameters such as engine oil temperature, coolant temperature, and transmission temperature. It also allows you to change settings on the tune, such as spark advance.
It's important to note that "negative boost" readings on the SCT X4 are normal at cruise and indicate vacuum conditions rather than positive boost. This can actually help improve fuel economy.
In some cases, you may need to install additional sensors or probes to monitor certain parameters, such as exhaust gas temperatures (EGTs). The SCT X4 may not have add-on sensors for EGTs, so you may need to install a separate probe.
Overall, the SCT X4 provides valuable insights into your vehicle's performance and allows for customization of certain settings. However, for more advanced data logging and monitoring, you may need to consider additional equipment or alternative solutions.
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The SCT X4 can be used with an aftermarket sensor to monitor fuel pressure
To set up fuel pressure monitoring, you will need to install an aftermarket sensor that is compatible with your vehicle. For example, if you are tuning with E85, you may want to consider a 0-150psi Aeroforce fuel pressure sensor. Once you have selected the appropriate sensor, follow the installation instructions provided by the manufacturer.
After installing the sensor, you can connect it to the SCT X4 device. The SCT X4 has a firewire with two connectors: one for +5v external power (white) and one for ground (black). There are also pairs of connectors for analog inputs, which you can use to connect the sensor's output voltage wire.
It is important to note that some sensors may require a dedicated 5v source. In this case, you can use the +5v external power connector on the SCT X4 firewire to supply power to the sensor. Additionally, some sensors may require a ground wire to complete the circuit. You can use the ground connector on the SCT X4 firewire or find another suitable ground location.
Once you have connected the sensor to the SCT X4, you can configure the device to start monitoring fuel pressure. This may involve setting up the SCT X4 to datalog the fuel pressure readings over a specific voltage range, such as 0.5-4.5vdc.
By using the SCT X4 with an aftermarket sensor, you can conveniently monitor fuel pressure and other vehicle parameters without relying solely on factory sensors and gauges. This setup provides valuable data that can help with troubleshooting, performance tuning, and ensuring the optimal operation of your vehicle.
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The SCT X4 firewire supplies 5v to sensors
The SCT X4 firewire does supply 5v to sensors. The firewire has two connectors, one white for +5v ext and the other black for ground. The SCT X4 firewire also has a pair of connectors for analog 1 and 2.
The SCT X4 firewire can be used to monitor fuel pressure, but an aftermarket sensor is required. The SCT X4 can be used to monitor fuel pressure by mounting a 0-100psi fuel pressure gauge in the car and tapping off of the available 0-5vdc output from many autometer providers. The SCT 0-5 analog input can be set up to datalog for 0100 over a 0.5-4.5vdc signal, which is what the autometer generates.
The SCT X4 firewire can also be used to wire in a wideband for AFR. The signal (0-5v) wire is attached to the firewire (red) and plugged into the SCT. The SCT is then set to the analog red wire and put on a gauge. The SCT X4 does not have a specific setting for AFR input. However, by entering the formula to convert voltage in AF, the wideband can be set up to read voltage before worrying about the formula.
The SCT X4 firewire can also be used to wire in an AEM gauge. The AEM white wire is connected to the SCT orange, and the AEM black wire is connected to the vehicle ground and SCT BLUE. The SCT BLACK wire does not need to be connected to the ground of the AEM gauge. However, the SCT BLUE and GREEN wires need to be tied to the chassis and AEM power ground.
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Frequently asked questions
Yes, you can see fuel pressure with an SCT X4. However, you will need to install an aftermarket sensor.
You can use a 0-150psi Aeroforce fuel pressure sensor.
You can refer to the SCT website for instructions on how to set up an aftermarket sensor with an SCT X4.