AUTOOL PT640 GDI Fuel Pressure Gauge 0-360Bar Digital Measurement Pressure Gauge

AUTOOL PT640Product OverviewThe AUTOOL PT640 GDI Fuel Pressure Gauge is a digital fuel pressure tester for automotive GDI / direct injection fuel systems. It helps technicians measure high-pressure fuel pump and fuel injection system pressure with a wide 0-360bar range, clear 2.8-inch backlit display, multiple pressure unit switching, real-time pressure display, maximum / minimum pressure tracking, differential pressure display, data lock, clear, and zeroing functions. GDI Fuel Pressure 0-360bar Data Holding 2.8" Backlit Screen0-5221.3psiPressure Range1% FSAccuracy400barOverload4×AAABattery Click to enlarge Click to enlargeKey FeaturesKey FeaturesPT640 combines high-pressure digital measurement, unit switching, data holding, zeroing, and adapter support for GDI fuel pressure diagnosis.Wide GDI Pressure RangeMeasures 0-360bar / 0-5221.3psi / 0-367kg/cm², making it suitable for automotive direct injection fuel pressure testing.Multi-Unit SwitchingSupports bar, kg/cm², and Psi pressure units, allowing technicians to switch units according to diagnostic habits and service standards.2.8-Inch Backlit DisplayThe 2.8-inch backlit display improves readability in low-light environments and clearly presents current pressure, maximum pressure, minimum pressure, and differential pressure.Data Holding And ZeroingLock the data and interface for stable observation, then use clear / zeroing functions to reset data and pressure before or after measurement.Digital Measurement SystemThe advanced digital measurement system provides wide-range pressure measurement with 1% FS accuracy and 0.1-unit resolution.Adapters For Vehicle ConnectionAdapter hoses, metal adapters, and T connector support connection to GDI fuel lines and direct injection test points. Click to enlarge Click to enlarge Click to enlarge Click to enlarge Click to enlarge Click to enlargeSpecificationsPT640 SpecificationsReview the confirmed PT640 measurement range, units, accuracy, resolution, battery requirement, operating temperature, overload pressure, and display functions before use.Product And ApplicationProductAUTOOL PT640 GDI Fuel Pressure GaugeApplicationGDI / direct injection fuel pressure testingTest TargetFuel injection pump pressure in automotive direct injection systemsDisplay2.8-inch backlit display screenMeasurementPressure Range0-360bar / 0-5221.3psi / 0-367kg/cm²Pressure Unitsbar, kg/cm², PsiAccuracy1% FSResolution0.1bar / 0.1kg/cm² / 0.1PsiOverload Pressure400barPressure AlarmAlarm when pressure exceeds 355barPower And FunctionsOperating Voltage6VBattery Type4 × 1.5V AAA batteriesOperating Temperature-10°C to 60°CDisplay DataCurrent pressure, maximum pressure, minimum pressure, differential pressure, pressure unit, and measurement timeControlsPower / language, unit switching, lock / unlock, clear / zero, backlight, and key soundWarranty3-year warranty for eligible non-human damage cases and lifetime maintenance supportProduct StructureStructure OverviewThe PT640 structure image shows the display area, control buttons, measuring probe, battery cover, key sound control, backlight control, and compact 175mm × 72mm body size.DisplayShows pressure data, unit, time, max / min values, and differential data.Lock / UnlockLocks the current data and interface for easier observation.Clear / ZeroClears stored data and performs pressure zeroing before measurement.Unit / PowerSwitches pressure units and controls power / language functions.Click to enlarge Product And ApplicationProductAUTOOL PT640 GDI Fuel Pressure GaugeApplicationGDI / direct injection fuel pressure testingTest TargetFuel injection pump pressure in automotive direct injection systemsDisplay2.8-inch backlit display screen MeasurementPressure Range0-360bar / 0-5221.3psi / 0-367kg/cm²Pressure Unitsbar, kg/cm², PsiAccuracy1% FSResolution0.1bar / 0.1kg/cm² / 0.1PsiOverload Pressure400barPressure AlarmAlarm when pressure exceeds 355bar Power And FunctionsOperating Voltage6VBattery Type4 × 1.5V AAA batteriesOperating Temperature-10°C to 60°CDisplay DataCurrent pressure, maximum pressure, minimum pressure, differential pressure, pressure unit, and measurement timeControlsPower / language, unit switching, lock / unlock, clear / zero, backlight, and key soundWarranty3-year warranty for eligible non-human damage cases and lifetime maintenance support Product StructureStructure OverviewThe PT640 structure image shows the display area, control buttons, measuring probe, battery cover, key sound control, backlight control, and compact 175mm × 72mm body size.DisplayShows pressure data, unit, time, max / min values, and differential data.Lock / UnlockLocks the current data and interface for easier observation.Clear / ZeroClears stored data and performs pressure zeroing before measurement.Unit / PowerSwitches pressure units and controls power / language functions. How To UseHow To UseBefore connecting the PT640 to a direct injection fuel line, release fuel pressure, install batteries, select the correct adapter, and take precautions against residual fuel leakage.Release Fuel PressureUnplug the fuel pump fuse, relay, or oil pump plug. Start the engine until it stalls, start it again 2-3 times, then disconnect the negative battery terminal.Install BatteriesOpen the rear battery cover and install 4 × 1.5V AAA batteries according to the positive and negative polarity marks.Select AdapterChoose the adapter suitable for the vehicle model and connect it to the measuring probe before connecting the pressure tester.Connect To GDI Fuel LineConnect the device to the direct injection fuel pipeline. Place a towel or cotton cloth below the oil pipe interface when removing the oil pipe to prevent residual fuel from leaking onto the ground.Measure And RecordLong-press to power on, long-press zeroing, select the pressure unit, and start measurement. The device displays the fuel pressure value and related pressure data.Use NotesRelease fuel pressure before installing the pressure tester.Use a towel or cotton cloth to catch residual fuel when removing the fuel pipe.Select the adapter suitable for the vehicle model before connection.The device alarms when pressure exceeds 355bar.Do not overload the equipment.After measurement, power off the device at atmospheric pressure when possible.Click to enlargeWhat Is In The BoxWhat Is In The BoxThe packing list image shows the most relevant PT640 package contents, including the main unit, carrying case, product box, user manual, adapter hoses, metal adapters, and T connector.Main UnitAUTOOL PT640 GDI Fuel Pressure GaugeStorageCarrying case and product box shown in package imageManualPT640 user manualAdaptersAdapter hoses, metal adapters, and T connector shown in package imagePower4 × AAA batteries requiredProduct ComparisonProduct ComparisonPT640 is positioned as the GDI Fuel Pressure Gauge in the AUTOOL engine pressure tester lineup. Use the comparison chart to choose the right pressure tester for cylinder pressure, engine oil pressure, fuel pressure, GDI pressure, transmission oil pressure, or brake system pressure testing.PT610Cylinder pressure gauge for cylinder pressure diagnosisPT620Engine oil pressure gauge with digital displayPT635High-end fuel pressure gauge for broader fuel pressure servicePT640GDI fuel pressure gauge for direct injection fuel pump pressure, 0-360barPT650ATF exchanger / transmission oil pressure gaugePT660Brake pressure gauge for brake system pressure testingClick to enlargeRelated ProductsRelated ProductsCompare related AUTOOL engine pressure tester tools before choosing the right gauge for cylinder, engine oil, fuel, GDI, transmission, or brake pressure testing.Select options This product has multiple variants. The options may be chosen on the product page Add to wishlist Add to compare Quick view iconQuick view Engine Pressure TesterAUTOOL PT610 Cylinder Pressure Gauge Automotive ToolRated 0 out of 5(0) From US$119.00 Select options This product has multiple variants. The options may be chosen on the product page Select options This product has multiple variants. The options may be chosen on the product page Add to wishlist Add to compare Quick view iconQuick view Engine Pressure TesterAUTOOL PT620 Engine Oil Pressure Gauge with Digital DisplayRated 0 out of 5(0) From US$179.00 Select options This product has multiple variants. The options may be chosen on the product page Select options This product has multiple variants. The options may be chosen on the product page Add to wishlist Add to compare Quick view iconQuick view Engine Pressure TesterAUTOOL PT635 Fuel Pressure Gauge(Hight-end Version) 0-426 PSI Digital Display Automotive Tool for Motorcycle Car TruckRated 0 out of 5(0) From US$259.00 Select options This product has multiple variants. The options may be chosen on the product page Select options This product has multiple variants. The options may be chosen on the product page Add to wishlist Add to compare Quick view iconQuick view Engine Pressure TesterAUTOOL PT650 ATF Exchanger Transmission Oil Pressure GaugeRated 0 out of 5(0) From US$119.00 Select options This product has multiple variants. The options may be chosen on the product page Select options This product has multiple variants. The options may be chosen on the product page Add to wishlist Add to compare Quick view iconQuick view Engine Pressure TesterAUTOOL PT660 Brake Pressure Gauge Pressure GaugeRated 0 out of 5(0) From US$359.00 Select options This product has multiple variants. The options may be chosen on the product page Manual And DownloadsManual And DownloadsDownload the correct AUTOOL PT640 GDI Fuel Pressure Gauge user manual. The original page contained a PT520 manual link in one location, so this section uses the PT640 manual PDF consistently. Click to enlargeAUTOOL PT640 User ManualOpen the PT640 manual for specifications, fuel pressure release preparation, battery installation, adapter connection, unit switching, zeroing, and measurement guidance.Download ManualNeed Setup Confirmation?Contact AUTOOL Store before ordering if you need to confirm PT640 pressure range, GDI compatibility, adapter use, battery requirement, or pressure tester model selection.Email[email protected]WhatsApp 86 189 2647 7404Before You Order And UseBefore You Order And UsePT640 is a high-pressure GDI fuel pressure tester. Review fuel pressure release, adapter selection, pressure range, unit support, alarm threshold, and storage notes before use.Purchase And Use NotesPT640 is for GDI / direct injection fuel pressure testing.Pressure range: 0-360bar / 0-5221.3psi / 0-367kg/cm².Supported pressure units: bar, kg/cm², Psi.Use 4 × 1.5V AAA batteries.Release fuel pressure before installing the pressure tester.When removing the oil pipe, place a towel or cotton cloth under the oil pipe interface to prevent fuel from leaking onto the ground.Select the adapter suitable for the vehicle model before connecting.The device alarms when pressure exceeds 355bar.Do not overload the equipment.Store the product in a dry place when not in use.Questions And AnswersThese answers cover PT640 use cases, pressure range, pressure units, batteries, fuel pressure release, adapters, PT635 / PT640 differences, manual download, and support.What Is AUTOOL PT640 Used For? AUTOOL PT640 is used for GDI / direct injection fuel pressure testing. It is designed to measure fuel injection pump pressure in automotive direct injection systems.What Pressure Range Does PT640 Support? PT640 supports a pressure range of 0-360bar / 0-5221.3psi / 0-367kg/cm². The overload pressure is 400bar, and the device alarms when pressure exceeds 355bar.Which Pressure Units Can PT640 Display? PT640 can display pressure in bar, kg/cm², and Psi. The unit button allows switching between these pressure units.How Do I Release Fuel Pressure Before Testing? Unplug the fuel pump fuse, relay, or oil pump plug, then start the engine until it stalls. Start it again 2-3 times, then disconnect the negative battery terminal before connecting the tester.What Batteries Does PT640 Use? PT640 uses 4 × 1.5V AAA batteries. Open the rear battery cover and install the batteries according to the positive and negative polarity marks.What Is The Difference Between PT635 And PT640? PT635 is a high-end fuel pressure gauge for broader fuel pressure service. PT640 is specifically positioned as a GDI fuel pressure gauge for automotive direct injection system fuel pump pressure testing with a 0-360bar range.Why Should I Use The Correct Adapter? The correct adapter helps connect the PT640 measuring probe securely to the vehicle’s direct injection fuel pipeline. Using an unsuitable adapter may affect sealing, measurement accuracy, or safe connection.Does PT640 Include A Manual? Yes. The PT640 user manual is included in the package image and can also be downloaded from the Download section of this description.Warranty And ContactWarranty And ContactFor PT640 product support, GDI compatibility, pressure range confirmation, adapter selection, manual support, warranty, or engine pressure tester model selection, contact AUTOOL Store directly.Pre-Sales And Product SupportUse support if you need help confirming whether PT640 is suitable for your direct injection fuel system, choosing between PT610 / PT620 / PT635 / PT640 / PT650 / PT660, checking adapter use, or requesting manual and warranty support.3-year warranty for eligible non-human damage casesLifetime maintenance supportGDI fuel pressure testing and pressure range confirmationAdapter and package content confirmationManual request and engine pressure tester model selectionEmail Support[email protected]WhatsApp Support 86 189 2647 7404