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TABLE OF CONTENTS
Part #3530 and #3531
Introduction....................................................................................................................1
Components...................................................................................................................2
Preliminaries ..............................................................................................................3-5
Fuel System ..............................................................
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3531 Shown COMPONENTS ❑ Electronic Control Unit/System ECU ❑ High Pressure Fuel Pump ❑ Calibration Module ❑ Fuel Filter ❑ Distributor ❑ Fuel Rail Assembly ❑ Ignition Amplifier ❑ Fuel Pressure Regulator ❑ Fuel Injectors ❑ ECU Power Relay/Fuel Pump Relay ❑ Intake Manifold ❑ Manifold Absolute Pressure (MAP) Sensor ❑ Four-Barrel Air Valve ❑ Manifold Air Temperature (MAT) Sensor ❑ Idle Air Control (IAC) Solenoid, integrated with air valve ❑ Coolant Temperature Sensor (CTS) ❑ Main System Harness ❑ Thr
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TOOLS AND EQUIPMENT HARDWARE AND PARTS RECOMMENDED Use the following checklist for items needed. ❑ Intake gasket - Fel-Pro #MS96011 or OEM steel gasket ONLY ❑ Box and open end wrenches ❑ Pipe plugs, if needed ❑ Socket set ❑ 5/16-inch steel tubing (approximate equal length to fuel ❑ Distributor wrench pickup line in tank) ❑ Pliers (channel locks and hose clamp) ❑ Loctite 598 OEM High Temperature Silicone Gasket ❑ Screwdrivers (regular and Phillips) (O Sensor Compatible) 2 ❑ Torque wrench ❑ Radia
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FO RWARD FORWARD FO RWARD DETERMINING HOOD CLEARANCE NOTE: Check hood clearance before removing stock manifold. 1. Use modeling clay or putty to make five small cones, two or three inches high. 2. Position cones on air cleaner at front, rear, each side, and on center stud. 3. Close hood to locked position and re-open. 4. The height of the cones indicate the amount of clearance between the hood and the air cleaner. Record these measurements. CLA Y CONE HOOD CLEARANCE AIR CLEANER C 2-3" D C E D
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AUTOMATIC TRANSMISSION CHECK For best performance, economy, and emissions, the shift point must be checked before and after the manifold change. NOTE: This check should be performed ONLY at a sanctioned drag strip or test track. With the shifter in Drive, accelerate to wide open throttle from a standing start. Hold in this position, noting speedometer MPH when the transmission makes the first 1-2 shift. After the Pro-Flo system has been installed, make the same test, again noting MPH of this f
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FUEL SYSTEM Because your Edelbrock Pro-Flo system controls fuel delivery very differently than a carburetor, some conversions to your fuel system are necessary. Pro-Flo electronic fuel injection requires high and constant fuel volume and fuel pressure. For this reason, a good primary fuel line is critical. The Pro-Flo system includes a 3/8-inch high pressure fuel line which must be used as the primary fuel line. The fuel that bypasses the injectors must be returned to the fuel tank via a re
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RUBBER RETURN LINE METHOD Drill a 5/16-inch hole in the sending unit plate adjacent to where the main line enters the tank. This will be the hole for your return line. Insert a short length of 5/16-inch hard line (available at most radiator shops) into the hole and weld it to the sending unit plate. The hard line should extend through the hole 1 to 2 inches on each side of the plate. Connect a length (at least 4 inches) of 5/16- inch rubber return line hose to the hard line that will extend i
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BULKHEAD FITTING METHOD HARD RETURN LINE METHOD Drill a 5/16-inch hole in the sending unit plate adjacent to where the main line, enters the tank. This will be the hole for your return line. Insert a length of 5/16-inch hard line (available at most radiator shops) into the hole and weld it to the sending unit plate. The hard line should extend through the hole 1 to 2 inches on the outside of the plate. On the inside of the plate, the hard line should follow the contours of the fuel pickup l
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NOTE: ALL WELDING AND SOLDERING OF THE FUEL SYSTEM MUST BE PERFORMED BY A PROFESSIONAL RADIATOR OR FUEL SYSTEM REPAIR SHOP. FUEL SYSTEM INSTALLATION 1. Drain the fuel tank. 2. Remove all fuel lines from the tank and from the carburetor. 3. Remove the fuel tank. NOTE: While the fuel tank is removed from the car, it is recommended that it be professionally cleaned in order to remove any rust or dirt that may have accumulated inside and which could damage the injectors. 4. Remove the sending unit f
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INDUCTION SYSTEM The Edelbrock Pro-Flo system delivers fuel and air to the engine via the induction system consisting primarily of a manifold, 4-barrel air valve, fuel rails, and fuel injectors. The induction system is fully assembled, tested, seal checked, and flowed at the factory and is as easy to install as a manifold. DO NOT DISASSEMBLE any of these components during installation, unless instructed. FUEL RAILS The extruded aluminum rail assembly routes the high pressure fuel to the inject
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PRE-INSTALLATION Before installing the induction system, take the following steps to ensure successful installation and performance: 1. Check all components thoroughly for damage. 2. Make sure all throttle linkages open entirely and close freely. 3. Make sure all fuel inlet and vacuum ports are free from packing material. 4. Check the installation kit for proper parts. REMOVING THE STOCK CARBURETOR AND MANIFOLD 1. Disconnect battery. 2. For ease of installation, keep all parts in order. CAUTION:
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GASKET SURFACE PREPARATION CAUTION: Replace all gaskets as recommended. We recommend using an OEM style metal pan intake gasket ONLY. Failure to use a valley pan will result in excessive oil consumption and improper manifold fit. DO NOT use competition type cork or rubber gaskets, or those that do not include a metal valley pan. Oil and/or coolant leaks may occur with the use of other style gaskets. 1. Remove Fuel rails and Injectors: Fuel injectors and fuel rails are assembled on the manif
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SENSORS The Edelbrock Pro-Flo system interprets overall engine operating conditions and fuel/spark requirements based on readings from sensors that measure specific engine conditions. The Pro-Flo system includes five sensors: 1) Manifold Absolute Pressure 2) Manifold Air Temperature 3) Coolant Temperature 4) Throttle Position 5) Exhaust Oxygen (O ) 2 These sensors, with the exception of the O and MAT (Manifold Air Temperature) sensors are designed as an integral part of the 2 induction
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COOLANT TEMPERATURE SENSOR The Coolant Temperature Sensor is a thermistor device like the Manifold Air Temperature sensor. Resistance varies as coolant temperature rises and lowers. The Coolant Temperature Sensor is located at the front of the manifold on the passenger side, and is connected to the Main System Harness.. THROTTLE POSITION SENSOR The Throttle Position Sensor, an integral part of the Pro-Flo throttle body, measures throttle angle. This sensor requires adjustment as described in
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O SENSOR INSTALLATION 2 The exhaust gas oxygen content is determined by the oxygen sensor. The sensor signals the ECU, which compensates when the air/fuel mixture is either rich or lean. NOTE: It is recommended that the O sensor installation be performed by a professional muffler shop. 2 1. Double check header gaskets, replacing if necessary. 2. Drill a 1/2-inch to 9/16-inch hole in the passenger-side header collector reducer, as close to the header collector flange as possible (1" to 3" away).
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MAIN SYSTEM HARNESS If the ECU is the brain of the Edelbrock Pro-Flo system, the Main System Harness is the central nervous system. The harness is constructed with SAE grade wires and the most up-to-date Weatherpak connectors. This diagram illustrates the entire Pro-Flo Main System Harness. ECU Fuel Pump Cal Pink Ignition Coil 3530 & 3531 3530 & 3531 Brn 16 Brochure #63-0273 ©2005 Edelbrock Corporation Pro-Flo EFI Installation Instructions Catalog #3530 & #3531 Rev. 2/05
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MOPAR AND AMC WIRING HARNESS Switched 12-volt Power Ignition Amplifier Distributor Ground MAP Sensor Tach Leed (Manifold Air Pressure) Fuses - Fuel TPS (Throttle Pump Relay Position Sensor) Passenger Side Injectors 2,4,6,8 IAC (Idle Air Control) 12-volt Battery Power O2 Sensor Engine Coolant MAT Sensor Fuel Pump To ECM To Coil Driver Side (Computer) Injectors 1,3,5,7 To Calibration Module 17 ©2005 Edelbrock Corporation Pro-Flo EFI Installation Instructions Brochure #63-0273 Rev. 2/05 Catalog
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INSTALLATION 1. Inspect the Main System Harness, making sure that all connectors and grounds are properly in place. 2. Because the harness extends from the engine compartment into the passenger compartment, a hole must be drilled in the firewall on the passenger side. Cut two overlapping 1 1/4-inch holes on a 1-inch center in the firewall. Saw the pointed edges to create an oval-shaped hole. NOTE: An alternative to this method is to cut a single 1 3/4 inch hole. 3. Extend the fuel pump relay,
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The Coolant Temperature sensor attaches to the The Manifold Absolute Pressure sensor main harness. attaches to the main harness. The Manifold Air Temperature sensor attaches to the Only the fuel injector connectors are identical, but main harness. they are placed in logical sequence. Refer to the diagram when installing the harness connectors to the fuel injectors. 19 ©2005 Edelbrock Corporation Pro-Flo EFI Installation Instructions Brochure #63-0273 Rev. 2/05 Catalog #3530 & #3531
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The IAC is attached to the main wiring harness. The ignition amplifier is attached to the main harness with the connector at left side of lower diagram. The ignition amplifier should be mounted on the firewall, or on the passenger fender well. The KEY ON (Start/Run power) wire (pink) should be connected to the factory positive (+) coil wire. If you have a ballast resistor in your factory coil wiring, you should remove the ballast resistor and connect the KEY ON wire to the wire coming into th
