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| The Latest 20 Updates on broncolinks.com |
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| 1 | Headlight | 09/07/2010 @ 15:08:04 | | http://www.thedieselstop.com/faq/9497faq/maint/stj/stji1015.htm |
| Switch Wiring Harness & Component Location Diagram, Ford Part Numbers, Depictions, etc. from Ford Workshop Manual in 96 Bronco, F-150, F-250, F-350, F-Super Duty Chassis Cab & Motorhome Chassis; use your Browser's SEARCH (or FIND) function to locate what you seek in each Diagram, such as headlamp or switch, etc. by Ford via thedieselstop.com... |
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| 9 | Powertrain Control Module (Computer, EEC... | 09/07/2010 @ 12:37:12 | | http://arrc.epnet.com/autoapp/7921vil/7921CH04_OBD_I_POWERTRAIN_DI... |
| Overview; "...The engine control systems are used in conjunction with either a throttle body (CFI) injection or multi-point (EFI and SEFI) injection fuel delivery system or feedback carburetor systems depending on the year, model and powertrain. Although the individual system components vary slightly, the electronic control system operation is basically the same. The major difference is the number and type of output devices being controlled by the ECA. One of these electronic test devices has become the on-board computer itself. The Powertrain Control Modules (PCM), sometimes called the Electronic Control Assembly (ECA), used on toadies vehicles has a built in self testing system. This self test ability is called self-diagnosis. The self-diagnosis system will test many or all of the sensors and controlled devices for proper function. When a malfunction is detected this system will store a fault code in memory that's related to that specific circuit. You can access the computer to obtain fault codes recorded in memory by using an analog voltmeter or special diagnostic scan tool. This will help narrow down what area to begin testing. There are 3 electronic fuel control systems used by Ford Motor Company. These systems all operate using similar components and on-board computers. Self-Diagnostic on these systems will vary, but, the basic fuel control operation is the same. Ford uses the following systems: EEC-IV and EEC-V engine control system: used on most domestic built Ford vehicles since 1984. Non-NAAO EEC engine control system: used on import built Ford vehicles, referred to as Non-NAAO cars.MCU feedback carburetor system: used on most Ford vehicles before 1984 and some later model vehicles equipped with a V8 engine and feedback carburetor. Most Ford vehicles made after 1983 use the 4th generation Electronic Engine Control system, commonly designated EEC-IV. In 1994 the EEC-V system was introduced on some models. The diagnostic system on EEC-V provides 3 digit codes in place of 2 digit codes and monitors more components. .." READ MORE for Reading Codes & Diagnostic Trouble Codes (DTC's) by Ford via arrc.epnet.com... |
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| 10 | EEC-V (OBD II) Diagnostic Trouble Code ... | 09/07/2010 @ 12:37:04 | | http://arrc.epnet.com/autoapp/7921vil/7921CH04_OBD_I_POWERTRAIN_DI... |
| Overview; "...The engine control systems are used in conjunction with either a throttle body (CFI) injection or multi-point (EFI and SEFI) injection fuel delivery system or feedback carburetor systems depending on the year, model and powertrain. Although the individual system components vary slightly, the electronic control system operation is basically the same. The major difference is the number and type of output devices being controlled by the ECA. One of these electronic test devices has become the on-board computer itself. The Powertrain Control Modules (PCM), sometimes called the Electronic Control Assembly (ECA), used on toadies vehicles has a built in self testing system. This self test ability is called self-diagnosis. The self-diagnosis system will test many or all of the sensors and controlled devices for proper function. When a malfunction is detected this system will store a fault code in memory that's related to that specific circuit. You can access the computer to obtain fault codes recorded in memory by using an analog voltmeter or special diagnostic scan tool. This will help narrow down what area to begin testing. There are 3 electronic fuel control systems used by Ford Motor Company. These systems all operate using similar components and on-board computers. Self-Diagnostic on these systems will vary, but, the basic fuel control operation is the same. Ford uses the following systems: EEC-IV and EEC-V engine control system: used on most domestic built Ford vehicles since 1984. Non-NAAO EEC engine control system: used on import built Ford vehicles, referred to as Non-NAAO cars.MCU feedback carburetor system: used on most Ford vehicles before 1984 and some later model vehicles equipped with a V8 engine and feedback carburetor. Most Ford vehicles made after 1983 use the 4th generation Electronic Engine Control system, commonly designated EEC-IV. In 1994 the EEC-V system was introduced on some models. The diagnostic system on EEC-V provides 3 digit codes in place of 2 digit codes and monitors more components. .." READ MORE for Reading Codes & Diagnostic Trouble Codes (DTC's) by Ford via arrc.epnet.com... |
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| 11 | EEC-IV; SELF TEST & Diagnostic Trouble ... | 09/07/2010 @ 12:35:10 | | http://arrc.epnet.com/autoapp/7921vil/7921CH04_OBD_I_POWERTRAIN_DI... |
| Overview; "...The engine control systems are used in conjunction with either a throttle body (CFI) injection or multi-point (EFI and SEFI) injection fuel delivery system or feedback carburetor systems depending on the year, model and powertrain. Although the individual system components vary slightly, the electronic control system operation is basically the same. The major difference is the number and type of output devices being controlled by the ECA. One of these electronic test devices has become the on-board computer itself. The Powertrain Control Modules (PCM), sometimes called the Electronic Control Assembly (ECA), used on toadies vehicles has a built in self testing system. This self test ability is called self-diagnosis. The self-diagnosis system will test many or all of the sensors and controlled devices for proper function. When a malfunction is detected this system will store a fault code in memory that's related to that specific circuit. You can access the computer to obtain fault codes recorded in memory by using an analog voltmeter or special diagnostic scan tool. This will help narrow down what area to begin testing. There are 3 electronic fuel control systems used by Ford Motor Company. These systems all operate using similar components and on-board computers. Self-Diagnostic on these systems will vary, but, the basic fuel control operation is the same. Ford uses the following systems: EEC-IV and EEC-V engine control system: used on most domestic built Ford vehicles since 1984. Non-NAAO EEC engine control system: used on import built Ford vehicles, referred to as Non-NAAO cars.MCU feedback carburetor system: used on most Ford vehicles before 1984 and some later model vehicles equipped with a V8 engine and feedback carburetor. Most Ford vehicles made after 1983 use the 4th generation Electronic Engine Control system, commonly designated EEC-IV..." READ MORE for Reading Codes & Diagnostic Trouble Codes (DTC's) by Ford via arrc.epnet.com... |
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| 12 | FUEL SYSTEM; carbs, EFI, pumps, tanks, p... | 09/07/2010 @ 12:30:52 | | http://arrc.epnet.com/autoapp/7921vil/7921CH04_OBD_I_POWERTRAIN_DI... |
| Microprocessor Control Unit (MCU) Overview; "...The Microprocessor Control Unit (MCU) system was used on most 1981–83 carburetor equipped vehicles, and 1984 and newer V8 engines with feedback carburetors. The MCU system uses a large six sided connector, identical to the one used with EEC-IV systems. The MCU system does NOT use the small single wire connector, like the EEC-IV system. This system has limited ability to diagnose a malfunction within itself. Through the use of trouble codes, the system will indicate where to test. When an analog voltmeter or special tester is connected to the diagnostic link connector and the system is triggered, the self-test simulates a variety of engine operating conditions and evaluates all the responses received from the various MCU components, so any abnormal operating conditions can be detected.Diagnosis of a driveability problem requires attention to detail and following the diagnostic procedures in the correct order. Resist the temptation to begin extensive testing before completing the preliminary diagnostic steps. The preliminary or visual inspection must be completed in detail before diagnosis begins. In many cases this will shorten diagnostic time and often cure the problem without electronic testing..." READ MORE for Reading Codes & Diagnostic Trouble Codes (DTC's) by Ford via arrc.epnet.com... |
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| 13 | Electronic Engine Control (EEC); SELF T... | 09/07/2010 @ 12:28:43 | | http://arrc.epnet.com/autoapp/7921vil/7921CH04_OBD_I_POWERTRAIN_DI... |
| Microprocessor Control Unit (MCU) Overview; "...The Microprocessor Control Unit (MCU) system was used on most 1981–83 carburetor equipped vehicles, and 1984 and newer V8 engines with feedback carburetors. The MCU system uses a large six sided connector, identical to the one used with EEC-IV systems. The MCU system does NOT use the small single wire connector, like the EEC-IV system. This system has limited ability to diagnose a malfunction within itself. Through the use of trouble codes, the system will indicate where to test. When an analog voltmeter or special tester is connected to the diagnostic link connector and the system is triggered, the self-test simulates a variety of engine operating conditions and evaluates all the responses received from the various MCU components, so any abnormal operating conditions can be detected.Diagnosis of a driveability problem requires attention to detail and following the diagnostic procedures in the correct order. Resist the temptation to begin extensive testing before completing the preliminary diagnostic steps. The preliminary or visual inspection must be completed in detail before diagnosis begins. In many cases this will shorten diagnostic time and often cure the problem without electronic testing..." READ MORE for Reading Codes & Diagnostic Trouble Codes (DTC's) by Ford via arrc.epnet.com... |
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| 14 | Carburetor & Microprocessor Control Unit... | 09/07/2010 @ 12:27:59 | | http://arrc.epnet.com/autoapp/7921vil/7921CH04_OBD_I_POWERTRAIN_DI... |
| Microprocessor Control Unit (MCU) Overview; "...The Microprocessor Control Unit (MCU) system was used on most 1981–83 carburetor equipped vehicles, and 1984 and newer V8 engines with feedback carburetors. The MCU system uses a large six sided connector, identical to the one used with EEC-IV systems. The MCU system does NOT use the small single wire connector, like the EEC-IV system. This system has limited ability to diagnose a malfunction within itself. Through the use of trouble codes, the system will indicate where to test. When an analog voltmeter or special tester is connected to the diagnostic link connector and the system is triggered, the self-test simulates a variety of engine operating conditions and evaluates all the responses received from the various MCU components, so any abnormal operating conditions can be detected.Diagnosis of a driveability problem requires attention to detail and following the diagnostic procedures in the correct order. Resist the temptation to begin extensive testing before completing the preliminary diagnostic steps. The preliminary or visual inspection must be completed in detail before diagnosis begins. In many cases this will shorten diagnostic time and often cure the problem without electronic testing..." READ MORE for Reading Codes & Diagnostic Trouble Codes (DTC's) by Ford via arrc.epnet.com... |
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| 15 | Feedback Carburetor Actuator | 09/07/2010 @ 12:27:35 | | http://arrc.epnet.com/autoapp/7921vil/7921CH04_OBD_I_POWERTRAIN_DI... |
| Microprocessor Control Unit (MCU) Overview; "...The Microprocessor Control Unit (MCU) system was used on most 1981–83 carburetor equipped vehicles, and 1984 and newer V8 engines with feedback carburetors. The MCU system uses a large six sided connector, identical to the one used with EEC-IV systems. The MCU system does NOT use the small single wire connector, like the EEC-IV system. This system has limited ability to diagnose a malfunction within itself. Through the use of trouble codes, the system will indicate where to test. When an analog voltmeter or special tester is connected to the diagnostic link connector and the system is triggered, the self-test simulates a variety of engine operating conditions and evaluates all the responses received from the various MCU components, so any abnormal operating conditions can be detected.Diagnosis of a driveability problem requires attention to detail and following the diagnostic procedures in the correct order. Resist the temptation to begin extensive testing before completing the preliminary diagnostic steps. The preliminary or visual inspection must be completed in detail before diagnosis begins. In many cases this will shorten diagnostic time and often cure the problem without electronic testing..." READ MORE for Reading Codes & Diagnostic Trouble Codes (DTC's) by Ford via arrc.epnet.com... |
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| 16 | Microprocessor Control Unit (MCU) Overvi... | 09/07/2010 @ 12:25:19 | | http://arrc.epnet.com/autoapp/7921vil/7921CH04_OBD_I_POWERTRAIN_DI... |
| Microprocessor Control Unit (MCU) Overview; "...The Microprocessor Control Unit (MCU) system was used on most 1981–83 carburetor equipped vehicles, and 1984 and newer V8 engines with feedback carburetors. The MCU system uses a large six sided connector, identical to the one used with EEC-IV systems. The MCU system does NOT use the small single wire connector, like the EEC-IV system. This system has limited ability to diagnose a malfunction within itself. Through the use of trouble codes, the system will indicate where to test. When an analog voltmeter or special tester is connected to the diagnostic link connector and the system is triggered, the self-test simulates a variety of engine operating conditions and evaluates all the responses received from the various MCU components, so any abnormal operating conditions can be detected.Diagnosis of a driveability problem requires attention to detail and following the diagnostic procedures in the correct order. Resist the temptation to begin extensive testing before completing the preliminary diagnostic steps. The preliminary or visual inspection must be completed in detail before diagnosis begins. In many cases this will shorten diagnostic time and often cure the problem without electronic testing..." READ MORE for Reading Codes & Diagnostic Trouble Codes (DTC's) by Ford via arrc.epnet.com... |
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| 17 | Microprocessor Control Unit (MCU) | 09/07/2010 @ 12:21:14 | | http://arrc.epnet.com/autoapp/7921vil/7921CH04_OBD_I_POWERTRAIN_DI... |
| Microprocessor Control Unit (MCU) Overview; "...The Microprocessor Control Unit (MCU) system was used on most 1981–83 carburetor equipped vehicles, and 1984 and newer V8 engines with feedback carburetors. The MCU system uses a large six sided connector, identical to the one used with EEC-IV systems. The MCU system does NOT use the small single wire connector, like the EEC-IV system. This system has limited ability to diagnose a malfunction within itself. Through the use of trouble codes, the system will indicate where to test. When an analog voltmeter or special tester is connected to the diagnostic link connector and the system is triggered, the self-test simulates a variety of engine operating conditions and evaluates all the responses received from the various MCU components, so any abnormal operating conditions can be detected.Diagnosis of a driveability problem requires attention to detail and following the diagnostic procedures in the correct order. Resist the temptation to begin extensive testing before completing the preliminary diagnostic steps. The preliminary or visual inspection must be completed in detail before diagnosis begins. In many cases this will shorten diagnostic time and often cure the problem without electronic testing.." READ MORE for Reading Codes & Diagnostic Trouble Codes (DTC's) by Ford via arrc.epnet.com... |
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| 20 | Troubleshooting | 09/06/2010 @ 10:02:05 | | http://www.turbocoupe.org/techinfo/ivr/clster3a.jpg |
| Instrument Voltage Regulator (IVR) Pin-Out pic in 78-86; "...Back in the early 60's when Ford originally decided to go to a 5 volt system for the instruments the electrical engineers were faced with the problem of providing the guages with 5 volts. To make a true voltage regulator with 60's era parts would have been extremely expensive and the final product would have been about the size of a bread box. No good for their purposes. But since the guages are a hot wire design that doesn't respond very quickly to changes, the engineers were able to fool the guages into thinking that they had 5 volts by pulsing 12 volts to the guages. With the technology that is now avalible the IVR can be replaced with solid state components that supply a true 5 volts to the guages and put a stop to the wild dance of the guages..." READ MORE by James J at turbocoupe.org... |
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