. Holley Pro-Jection 4Di Help. If this is your first visit, be sure to check out the by clicking the link above. You may have to before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below.
Please be aware that this is a community forum. Although Holley employees will take part in answering questions from time to time, your questions may or may not be answered by Holley personnel. Thus, Holley can not guarantee an answer or timing on an answer. We bought a AMC 360 with a Holley projection 4di system on it. Opened the ECU up and the chip is the original so it requires us to use the 2.1 software. I finally found a win 95 laptop to be able to hook up to the ECU tonight.
We have got the jeep started without the laptop but are having a few issues and wondering where to start. Turn the key on- fuel pump kicks on- turn the key to start- motor cranks but no fuel from injectors.
But if you whack the gas to wide open for a second the injectors gives the motor a quick shot and then will fire right up. (for Tach signal I have the yellow wire tied into the tach output on our GM style HEI). Once the motor is up and running its idles up to around 2000rpm and that is with the idle screw threaded all the way out.
If i slowly put my finger over the IAC port it will idle down, but once my finger is removed it goes right back up to 2,000, I did install a new oxygen sensor into the headers. When we bought the motor it seem to run well and all we did was pull the motor down and have the heads re-done and then new gaskets through out.
We have not had this hooked up to a laptop at all and not sure what it will show or help me with. I have a friend coming over this weekend to help, he has never worked with this system but he is a good ASE mechanic and avid drag racer so I hope the info the software spits out is something he can understand. Motor is nothing fancy AMC 360, bored 030 over, fresh stock heads, GM/HEI style ignition, Headman Headers, TH400 Trans. Thanks for your help in advance, of course we are on a tight time frame supposed to be taking the Jeep to Silver Lake sand dunes in a week, and I really want to keep the injection vs going backwards and throwing a carb on it.
The TPS voltage at idle (on the 4D & Di systems) has to be set at.58 volts. This is imperative for proper operation. If you adjust the idle speed, you must also reset the TPS sensor voltage at idle.
Read page 34 below: (Holley Pro-Jection 4Di Manual) Read page 30 for some preliminary IAC software settings. Also, ensure the IAC wiring is not in close proximity to the spark plug wires. Read page 19 for correct RPM signal connection (yellow vs. Yellow/black wire). Are you using computer controlled ignition timing? Read page 38 for checking the fuel pressure. As old as it is, it may be out of adjustment or have a failed regulator.
If you need a fuel pressure regulator diaphragm: (Fuel Pressure Regulator Service Kit). May God's grace bless you in the Lord Jesus Christ. '78 BRONCO: 508' stroker, TFS heads, 11:1 comp ratio, Dominator MPFI & DIS, cold air induction, Spal dual 12' fans/aluminum radiator, dual 3' exhaust/Magnaflow mufflers, Moroso vacuum pump, Accusump, engine oil & trans fluid coolers, 100HP progressive dry direct-port NOS, A/C, LenTech Strip Terminator wide-ratio AOD/2500 RPM converter, 3:1 Atlas II, modified Dana 44/60-lockers-4.10s, hydroboost/4-disc brakes, ram-assist/heim joint steering, Cage long radius arms, traction bars, 4' Skyjacker lift, 35' mud tires.
Thanks for the reply. Will the laptop/data monitor tell me if i have a bad sensor?
At first it did idle back down, but felt it was a little low so we idled it up some without touching the TPS sensor, did not know the 2 went hand in hand. We are using a gm style HEI ignition and Woody said to hook up the yellow wire to tach sense wire. Our starting procdure is completly incorrect to what it says in the manual. Is that fuel pressure related?
I will get laptop hooked back up tonight and see what it shows. May God's grace bless you in the Lord Jesus Christ. '78 BRONCO: 508' stroker, TFS heads, 11:1 comp ratio, Dominator MPFI & DIS, cold air induction, Spal dual 12' fans/aluminum radiator, dual 3' exhaust/Magnaflow mufflers, Moroso vacuum pump, Accusump, engine oil & trans fluid coolers, 100HP progressive dry direct-port NOS, A/C, LenTech Strip Terminator wide-ratio AOD/2500 RPM converter, 3:1 Atlas II, modified Dana 44/60-lockers-4.10s, hydroboost/4-disc brakes, ram-assist/heim joint steering, Cage long radius arms, traction bars, 4' Skyjacker lift, 35' mud tires. From page 36 'Do not touch the throttle control. Crank the engine for 3-5 seconds. The engine should start, or start and stall. If the engine did not start or did not continue running, press the accelerator pedal to ¼ throttle.
Crank the engine with the throttle in this position until the engine starts or for 12 seconds. If the engine does not start after 12 seconds, the engine may be flooded. Allow the starter motor to cool.
To use the “Clear Flood” mode, increase the throttle control to wide open and hold while cranking. As soon as the engine starts, release the throttle control to the idle position. Do not crank the engine for more than 15 seconds at a time to prevent premature starter failure' When I crank the motor over we dont get any injector spray, but if we turn the key on and push the pedal to wide open (without cranking the motor over) it give it a quick shot of fuel then turn the key to start and it fires right up. May God's grace bless you in the Lord Jesus Christ. '78 BRONCO: 508' stroker, TFS heads, 11:1 comp ratio, Dominator MPFI & DIS, cold air induction, Spal dual 12' fans/aluminum radiator, dual 3' exhaust/Magnaflow mufflers, Moroso vacuum pump, Accusump, engine oil & trans fluid coolers, 100HP progressive dry direct-port NOS, A/C, LenTech Strip Terminator wide-ratio AOD/2500 RPM converter, 3:1 Atlas II, modified Dana 44/60-lockers-4.10s, hydroboost/4-disc brakes, ram-assist/heim joint steering, Cage long radius arms, traction bars, 4' Skyjacker lift, 35' mud tires. About us Holley has been the undisputed leader in fuel systems for over 100 years.
Holley carburetors have powered every NASCAR® Sprint® Cup team and nearly every NHRA® Pro–Stock champion for four decades. Now, Holley EFI is dominating the performance world as well as our products for GM's LS engine. Holley's products also include performance fuel pumps, intake manifolds & engine dress–up products for street performance, race and marine applications. As a single solution, or partnered with products from other Holley companies - Hooker Headers, Flowtech Headers, NOS Nitrous, Weiand, Earl's Performance Plumbing, or Diablosport - Holley products can give you the edge you need over the competition.
. MARINE Part Number 700-21 For V-8 Engines INSTALLATION, TUNING, AND TROUBLESHOOTING MANUAL NOTE: These instructions must be read and fully understood before beginning installation. If this manual is not fully understood, installation should not be attempted.
Failure to follow these instructions, including the pictures may result in subsequent system failure. TABLE OF CONTENTS: 1.0 INTRODUCTION.3 2.0 WARNINGS, NOTES, AND NOTICES.3 3.0 PARTS IDENTIFICATION.4 4.0 ADDITIONAL ITEMS REQUIRED FOR INSTALLATION.6 5.0 TOOLS REQUIRED FOR INSTALLATION.6 6.0 SYSTEM OVERVIEW.7 7.0 REMOVAL OF EXISTING FUEL SYSTEM.7 8.0 INSTALLATION OF THE MARINE PRO-JECTION FUEL SYSTEM.8 8.1 Adapter Plate Installation.8 8.1.1 Square Flange Manifolds.8 8.1.2 Universal and Spread Bore Manifolds.9.
1.0 INTRODUCTION Holley Performance Products has written this manual for the installation of the marine PRO-JECTION 2D fuel injection system. This manual contains all the information needed to install this system. Please read all the WARNINGS, NOTES, and TIPS, as they contain valuable information that can save you time and money.
3.0 PARTS IDENTIFICATION ITEM DESCRIPTION SERVICE PART TBI Assembly 700 CFM Complete 500-13 Electronic Control Unit (ECU) D Systems Wiring Harness 534-34 Fuel Pump 12-927 Fuel Pump Clamp Flame Arrestor 720-1 Manifold Adapter (square flange) 17-6 Universal Manifold Adapter 17-41 Universal Manifold Adapter Gasket 508-5 Square Flange Manifold Adapter Gasket. Item 4 Item 5 Item 6 Item 7 Item 8 Item 9 Item 10 Item 11 Item 12 Item 13 Item 14 Item 15 Item 16 Item 17 Item 18. Item 19 Item 20 Item 21 Item 22 Item 23 Item 24 Item 25 Item 26 Item 27 Item 28 Item 29 Item 30 Item 31 Item 32 4.0 ADDITIONAL ITEMS REQUIRED FOR INSTALLATION. more 3/8” Marine fuel hose marked U.S.C.G.
Type A1 (if needed). NOTE: Although every possible precaution was taken in the design of the digital ECU to prevent interference from radio sources, the use of solid core spark plug wires may interfere with the operation of the ECU. Holley recommends the use of either suppression or spiral wound spark plug wires, such as Holley Part #’s 50-9800, 50-9801, or 50-9804. 8.1 Adapter Plate Installation Determine which type of mounting flange you have on your intake manifold. A square flange accepts a standard Holley carburetor or universal, and a spread bore flange accepts a Rochester Quadra-Jet carburetor. Make sure the gasket surface on the mounting flange is clean and any old gasket material has been removed. NOTE: Some applications originally equipped with a Quadra-Jet carburetor may require the use of Holley’s throttle cable bracket P/N 717-6.
NOTE: Mercruiser applications will require the throttle cable bracket P/N 717-6 and Holley's linkage adapter P/N 717-7. Install the bracket along with the proper gaskets between the manifold and the adapter plate.
Holley Pro-jection 4 Fuel Injection
Remove any studs or brackets that are on the carburetor throttle lever and transfer them over to the lever of the TBI in the same relative location. Connect the throttle cable to the lever using the original equipment hardware. If Using the Holley 717-6 and/or 717-7 throttle linkage kits. STICKING THROTTLE MAY RESULT IN UNCONTROLLED ENGINE OR BOAT SPEED.
THIS COULD CAUSE PROPERTY DAMAGE, PERSONAL INJURY, OR DEATH. A STICKING THROTTLE MAY BE CAUSED BY IMPROPERLY INSTALLED THROTTLE CABLES, LACK OF CLEARANCE FOR ANY OF THE THROTTLE LINKAGE, OR BY BINDING THROTTLE LINKAGE. CHECK ALL THROTTLE CABLES FOR PROPER INSTALLATION AND ALIGNMENT AND ACTUATE THE THROTTLE TO CHECK FOR ANY POTENTIAL BINDING OR CLEARANCE PROBLEMS AND REPAIR ANY PROBLEMS.
8.6 Return Line Installation The Holley digital PRO-JECTION System requires a return fuel line to the fuel tank so that unused fuel can be routed from the throttle body. There are two methods of installing a return line on a boat. The preferred method is to run a hose or line from the throttle body outlet back to the fuel tank. 8.7.2 Installation with Fuel Return Line to Electric Pump Holley recommends that the mechanical pump be removed in this case. However, the pump can be optionally retained if the user wants to supply the electric pump with the mechanical pump. Install the 3/8” hose from the boat fuel tank and fuel filter to the 3/8”.
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The ECU then adjusts the fuel delivery to maintain a stoichiometric fuel delivery (14.7:1 Air / Fuel Ratio). NOTE: The installation of an oxygen sensor will operate with the digital ECU. This requires use of the Holley Digital PRO- JECTION 2D Closed Loop Kit for 1 and 2-Barrel Applications, P/N 534-54.
Figure 7 Figure 8 If the oxygen sensor is being installed directly into the exhaust manifold, the manifold will have to be drilled and tapped for the oxygen sensor threads. The location for the oxygen sensor should be chosen very carefully. The sensor must be located in an area that can be drilled without passing through any of the manifold water jackets. NOTE: All connections shown MUST be made in order for the PRO-JECTION 2D system to operate properly.
Pick a suitable location on the interior of the boat in which the ECU can be mounted. Ensure the mounting location allows for sufficient length of the wiring harness and clearance for connectors and the adjustment knobs on the front of the ECU are accessible before mounting the ECU. 12.0 ELECTRICAL CONNECTIONS The cable assembly plugs into the ECU and also connects to the throttle body, fuel pump, sensors, electrical power, and ground. Apply a small amount of dielectric grease to all electrical terminals and connections.
Keep all wires away from hot or moving parts as much as possible. Your kit includes cable ties to secure wires clear. For proper operation, the voltage on the fuse holder wire should be 12-15 volts while the engine is running and should remain above 8.5 volts while the engine is being started. Low voltage will result in poor operation or an inoperative system. Double check the voltage after the installation is complete. The use of solid core ignition wires may adversely affect the function of the electronic control unit. should 'open circuit', causing a lean condition, the back up automatically takes place.
If the TPS 'short circuits', causing a rich condition, you must remove the wire harness connector from the TPS. The idle will be richer and top speed will be limited in this mode. The setting of the mechanical idle speed is critical in the operation of the Digital ECU and is best accomplished by using a tachometer. If your vehicle is not equipped with a tachometer, Holley highly recommends one be used.
To adjust, follow the. ENSURE THE THROTTLE IS NOT STICKING.
A STICKING THROTTLE MAY RESULT IN UNCONTROLLED ENGINE OR BOAT SPEED. THIS COULD CAUSE PROPERTY DAMAGE, PERSONAL INJURY, AND/OR DEATH. Start the engine. With the engine running at idle, insert a flat blade screwdriver into the head of the idle adjustment screw located on the front of the throttle body on the driver’s side of the vehicle. Turn the adjustment knob labeled MAIN, clockwise until the engine rpm reaches a maximum value and the engine rpm just begins to drop. If your vehicle is equipped with a Holley rich / lean indicator, adjust the MAIN adjustment knob until the green center light on the unit remains stable. The CHOKE adjustment knob controls the fuel delivery to the engine during a cold start.
Adjustment to the CHOKE should be made after the engine has cooled down completely. After the engine has cooled down completely (Holley recommends allowing the engine to sit overnight), start the engine. Immediately after starting the engine, shift the transmission into gear and accelerate slowly. Add Holley fuel system cleaner to the gas tank every 3 months according to the directions on the system cleaner. This will keep injector patterns optimal for best performance and economy.
Electrical Connections Section 12.0 Injector flows fuel - Poor Engine ground wire connection - Clean ground location and tighten with ignition switch connection in the “RUN” position - Leaky fuel injector - Replace fuel injector and engine not running “CLEAR FLOOD” - Throttle does not open fully - Check for interference between the throttle mode does not. 20.2 Testing the Coolant Temperature Sensor The coolant temperature sensor used with the PRO-JECTION 2D system is a single wire sensor. The ECU supplies a fixed voltage to the sensor.
The resistance within the sensor varies with temperature and this variation in resistance is used by the. 20.3 Testing the Throttle Position Sensor A properly adjusted and functioning throttle position sensor is essential to the proper operation of the PRO-JECTION 2D system. The TPS is a precision electrical component that acts as a variable resistor. The ECU provides a reference voltage to the TPS. 20.4 Testing the Oxygen Sensor (if equipped) The PRO-JECTION D system oxygen sensor performance can be evaluated. Probe the gray wire from the oxygen sensor connector with the positive (+) lead of a digital voltmeter. With the engine running open loop, the meter reading should be near zero or one volt.
NOTES: NOTES. Holley Copyright 1999 Printed in U.S.A. Performance Products Inc 199R-10028-1 Date: 11-11-99.