{"product_id":"pro-hv-4-injector-driver","title":"PRO HV-4 Injector Driver","description":"\u003cdiv class=\"x_elementToProof\" data-olk-copy-source=\"MessageBody\"\u003eSame injector. A new level of precision.\u003c\/div\u003e\n\u003cdiv class=\"x_elementToProof\" data-olk-copy-source=\"MessageBody\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"x_elementToProof\"\u003e\n\u003cspan\u003eLarge injectors doesn't have to mean a bad idle.\u003c\/span\u003e The PRO HV-4 Injector Driver opens the injector with a kick of up to 65 V, generated inside the module itself, and then holds it with the right current. It is the Boost → Peak → Hold strategy of FuelTech's Peak and Hold High Voltage line, in a compact module for engines with up to 4 cylinders, port or direct injection.\u003c\/div\u003e\n\u003cdiv class=\"x_elementToProof\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"x_elementToProof\"\u003eThe injector opens faster and practically identically on every pulse. On port injectors, dead time can drop from approximately 1.4 ms to as low as 0.3 ms, depending on the injector, fuel pressure and configured boost voltage. The result: more precise metering at idle, a more linear fuel map, injectors flowing evenly, injector opening that does not depend on battery voltage, and the option to run a single large injector vs 2 sets for big power and idle quality.\u003c\/div\u003e\n\u003cdiv class=\"x_elementToProof\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/files.fueltech.net\/manual\/Portugues\/Manual_PRO_HV4_Trilingue.pdf\"\u003eDOWNLOAD MANUAL\u003c\/a\u003e\u003c\/p\u003e\n\u003c!-- split --\u003e\n\u003ch3 style=\"text-align: center;\"\u003eKey benefits\u003c\/h3\u003e\n\u003cdiv class=\"feature_divider\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv class=\"x_elementToProof\" role=\"presentation\"\u003e\n\u003cstrong\u003e\u003cspan data-olk-copy-source=\"MessageBody\"\u003eCrisp idle with large injectors:\u003c\/span\u003e \u003c\/strong\u003eat idle the pulse is short. With the injector opening fast and always the same way, the ECU meters small amounts of fuel more precisely.\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan role=\"presentation\"\u003eMore linear map:\u003c\/span\u003e \u003c\/strong\u003ewith less dead time, fuel delivery follows injection time more proportionally, with fewer workarounds in the tune.\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"x_elementToProof\" role=\"presentation\"\u003e\n\u003cstrong\u003eInjectors flowing evenly: \u003c\/strong\u003edead time is the main reason one injector flows differently from another. By reducing it, the PRO HV-4 reduces the error of each pulse, and injectors flow more evenly (in volumetric testing, often better than when they were new on the original driver). Works with low- and high-impedance injectors.\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"x_elementToProof\" role=\"presentation\"\u003e\n\u003cstrong\u003eRun a single set of injectors: \u003c\/strong\u003ewith short-pulse precision, the high-flow set also handles idle, without a low-flow set.\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan role=\"presentation\"\u003eStable mixture when battery voltage drops:\u003c\/span\u003e\u003c\/strong\u003e turn on the A\/C, the radiator fan or the headlights and battery voltage drops. On the PRO HV-4, opening comes from boost voltage regulated by the internal DC-DC converter, and peak and hold currents are regulated by the module, so injector opening does not depend on battery voltage within the 8 to 30 V range.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan role=\"presentation\"\u003eMore fuel at high RPM, same injector:\u003c\/span\u003e \u003c\/strong\u003ethe injection window shrinks at high RPM, but dead time does not. The time the module gives back on each pulse becomes injected fuel, with the same injector and the same duty-cycle limit.\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"text-align: center;\"\u003eFeatures\u003c\/h3\u003e\n\u003cdiv class=\"feature_divider\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e4 injector channels and 1 channel for the high-pressure pump control valve.\u003c\/li\u003e\n\u003cli\u003eDirect injection (GDI) and port injection (PFI) on the same hardware, with channels firing in any order and with overlap.\u003c\/li\u003e\n\u003cli\u003eBoost up to 65 V; boost, peak and hold currents configurable up to 25 A each; 8 to 30 V supply.\u003c\/li\u003e\n\u003cli\u003ePer-channel diagnostics (open circuit and short circuit), boost failure, low battery and temperature, with LED and CAN network alerts. You know exactly which injector failed.\u003c\/li\u003e\n\u003cli\u003eConfiguration via FTManager, VisionFT or the DBC file in third-party tools.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"text-align: center;\"\u003eWho it's for\u003c\/h3\u003e\n\u003cdiv class=\"feature_divider\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003eAnyone who installed large injectors to chase power and can't get a smooth idle.\u003c\/li\u003e\n\u003cli\u003eBuilders and tuners who want every injector flowing the same as the next, with less cylinder-by-cylinder trim in the map.\u003c\/li\u003e\n\u003cli\u003ePower builds that want to run a single bank of high-flow injectors.\u003c\/li\u003e\n\u003cli\u003eRace teams that need precise short pulses and more usable injection time at high RPM, with the same injector.\u003c\/li\u003e\n\u003cli\u003eBuilds running direct injection and port injection that currently use two modules.\u003c\/li\u003e\n\u003cli\u003eEngines with up to 4 cylinders in sequential mode. For a V8, use two PRO HV-4 units.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"text-align: center;\"\u003eImportant: what you need\u003c\/h3\u003e\n\u003cdiv class=\"feature_divider\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cp\u003eThe PRO HV-4 is \u003cstrong\u003enot plug-and-play\u003c\/strong\u003e. It requires the dedicated \u003cstrong\u003ePRO HV-4 harness\u003c\/strong\u003e, sold separately, or a harness built with the \u003cstrong\u003ePRO GEN2 connector and terminals kit\u003c\/strong\u003e, plus readjustment of dead time and the fuel map in the ECU. FuelTech recommends installation by a qualified tuner.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePort injection (PFI):\u003c\/strong\u003e PowerFT VCUs and the VisionFT line.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect injection (GDI):\u003c\/strong\u003e VisionFT line only.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThird-party ECUs:\u003c\/strong\u003e compatibility depends on the electrical characteristics of the injection outputs and on the ECU's functions.\u003c\/li\u003e\n\u003cli\u003eEach channel receives its command through a wire from the ECU injection output. The CAN network is used for configuration and diagnostics; it does not trigger injection.\u003c\/li\u003e\n\u003cli\u003eSolenoid injectors only; not compatible with piezoelectric injectors.\u003c\/li\u003e\n\u003cli\u003eThe pump channel is exclusively for the high-pressure pump control valve. Never connect an electric fuel pump to the module channels.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eThe gain is electrical: the PRO HV-4 does not change the injector's static flow and does not fix a clogged injector. Dead time values and gains mentioned depend on the injector, fuel pressure and tune.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003eTechnical specifications\u003c\/h3\u003e\n\u003cdiv class=\"feature_divider\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eDrive strategy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border: 1px solid #ddd;\"\u003eBoost → Peak → Hold\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eBoost voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border: 1px solid #ddd;\"\u003eConfigurable up to 65 V (regulated by internal DC-DC converter)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eBoost, peak and hold currents\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border: 1px solid #ddd;\"\u003eIndependently configurable up to 25 A each\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eConfigurable times\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border: 1px solid #ddd;\"\u003ePeak, bypass and pre-boost\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eInjector channels\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border: 1px solid #ddd;\"\u003e4 independent channels, GDI or PFI solenoid injectors, any firing order, with overlap\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003ePump channel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border: 1px solid #ddd;\"\u003e1 channel for the high-pressure pump control valve (GDI)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eCommand input\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border: 1px solid #ddd;\"\u003eIndividual physical input per channel, from the ECU\/VCU injection output\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eConfiguration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border: 1px solid #ddd;\"\u003eCAN network (FTManager and VisionFT) or DBC file\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eDiagnostics\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border: 1px solid #ddd;\"\u003ePer-channel open\/short circuit, supply voltage drop, boost (Vboost) failure, thermal protection; LED and CAN alerts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eSupply voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border: 1px solid #ddd;\"\u003e8 to 30 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eOperating temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border: 1px solid #ddd;\"\u003e-20 °C to 120 °C (-4 °F to 248 °F), measured on the board\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eConnector\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border: 1px solid #ddd;\"\u003e26-pin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eEnclosure\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border: 1px solid #ddd;\"\u003eAluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border: 1px solid #ddd;\"\u003e90 × 115 × 45 mm (3.54 × 4.53 × 1.77 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eModule weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border: 1px solid #ddd;\"\u003e0.360 kg (0.79 lb)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3 style=\"text-align: center;\"\u003eWhat's in the box\u003c\/h3\u003e\n\u003cdiv class=\"feature_divider\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e1 PRO HV-4 Injector Driver module\u003c\/li\u003e\n\u003cli\u003e1 Installation and operation manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eThe dedicated harness and the PRO GEN2 connector and terminals kit are not included; they are sold separately.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003eInstallation notes\u003c\/h3\u003e\n\u003cdiv class=\"feature_divider\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003eInstall with the battery disconnected and the harness unplugged from the module. \u003cstrong\u003eWarning:\u003c\/strong\u003e injector outputs operate at up to 65 V and internal capacitors may hold a charge for some time after power-off. Do not handle the injector harness with the module powered.\u003c\/li\u003e\n\u003cli\u003eRun power ground directly to the battery negative terminal, without splices (not to the chassis, engine block or cylinder head).\u003c\/li\u003e\n\u003cli\u003eKeep the harness as short as possible; cut off excess length and do not coil the wires.\u003c\/li\u003e\n\u003cli\u003eProtect against heat, moving parts and sharp edges; use protective sleeves and grommets.\u003c\/li\u003e\n\u003cli\u003eAfter installation, readjust the dead time and check the fuel map in the ECU.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"text-align: center;\"\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"feature_divider\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the PRO HV-4 Injector Driver?\u003c\/strong\u003e\u003cbr\u003eA boost injector driver with up to 65 V for direct injection (GDI) and port injection (PFI) solenoid injectors. It opens the injector faster and identically on every pulse using the Boost → Peak → Hold strategy, with 4 injector channels and 1 channel for the high-pressure pump control valve.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it work with my ECU?\u003c\/strong\u003e\u003cbr\u003eIt needs one injection output per channel, connected to the module input. Port injection: PowerFT and the VisionFT line. Direct injection: VisionFT line; on the FT700, in Beta mode, enabled by technical support. PowerFT units do not support direct injection. Third-party ECUs: depends on the electrical characteristics of its outputs and on its functions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs it plug-and-play?\u003c\/strong\u003e\u003cbr\u003eNo. The module uses a 26-pin connector and does not come with a harness: use the dedicated PRO HV-4 harness or build one with the PRO GEN2 connector and terminals kit Since the injector will open faster, you must readjust the dead time and check the fuel map in the ECU.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhich injectors does it support?\u003c\/strong\u003e\u003cbr\u003eDirect and port injection solenoid injectors, low or high impedance, with the correct parameters for each injector. Not compatible with piezoelectric injectors.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is dead time?\u003c\/strong\u003e\u003cbr\u003eThe delay between the ECU command and the actual opening of the injector. The longer and more variable this delay, the greater the metering error, especially at idle, where pulses are short. With boost, the PRO HV-4 shortens dead time (on port injection, from about 1.4 ms to as low as 0.3 ms) and makes it independent of battery voltage.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow much more fuel at high RPM?\u003c\/strong\u003e\u003cbr\u003eIllustrative example with port injectors (4-stroke engine, 85% maximum duty cycle, 120 lb\/h injector, dead time going from 1.4 to 0.3 ms): about 7% more usable flow at 6,000 RPM and about 11% at 9,000 RPM. The injector's static flow does not change. Actual results depend on the injector, fuel pressure and tune.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePRO HV-4 or PRO HV-8?\u003c\/strong\u003e\u003cbr\u003eBoth use the same technology and the same Boost → Peak → Hold strategy. PRO HV-4: 4 injector channels and 1 pump valve channel, in a more compact module, for engines with up to 4 cylinders. PRO HV-8: 8 channels and 2 pump valves, for up to 8 cylinders in a single module or builds with two high-pressure pumps.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use two on a V8?\u003c\/strong\u003e\u003cbr\u003eYes. Each PRO HV-4 handles 4 cylinders with its own boost stage and can be mounted close to its bank, with a shorter harness. If you prefer a single module for all 8 cylinders, choose the PRO HV-8.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it replace the Peak and Hold PRO?\u003c\/strong\u003e\u003cbr\u003eIt depends on the application. Port injection that does not need boost: Peak and Hold PRO. Large injectors with a hard-to-tune idle, injectors flowing evenly, a single injector bank or direct injection on up to 4 cylinders: PRO HV-4. More than 4 cylinders in a single module or two high-pressure pumps: PRO HV-8.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat happens if an injector fails?\u003c\/strong\u003e\u003cbr\u003eThe module detects open circuit and short circuit on each channel, boost failure, supply voltage drop and temperature, and reports which channel failed through the LED and the CAN network. You choose whether it only warns or shuts down; by default, only a boost failure shuts down the module.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eYour injector always had more to give. It was missing the driver.\u003c\/strong\u003e\u003c\/p\u003e","brand":"FuelTech USA","offers":[{"title":"w\/o harness","offer_id":68039466418543,"sku":"3010018070","price":599.0,"currency_code":"USD","in_stock":true},{"title":"w\/ connector kit","offer_id":68079069135215,"sku":"3010018070 \/ 5011109016","price":688.0,"currency_code":"USD","in_stock":true},{"title":"w\/ 6ft unterminated harness","offer_id":68039466451311,"sku":"3010018070 \/ 2001018080","price":728.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1414\/6340\/files\/PRO-HV-4-INJECTOR-DRIVER-02.webp?v=1793997419","url":"https:\/\/www.fueltech.net\/products\/pro-hv-4-injector-driver","provider":"FuelTech USA","version":"1.0","type":"link"}