A’PEX SUPER AFC ?, Instruction Manual

Page 1: ...hasing the A PEX Super Airflow Converter Please read through this Instruction Manual to operate this product correctly and keep it near the product so that you may refer to it whenever necessary If you transfer the product to another customer be sure to attach this Instruction Manual and the warranty to the product SUPER AFCⅡ 401 A911 401 A913 Car models mentioned in the wiring diagram by model Ai...

Page 2: ... and Operations in the etc mod 19 Chapter 4 Monitor Mode Monitor Menu Channel Select 1Channel 4Channel 22 A plot display is made by using the RPM for the axis Rev Y 27 Chapter 5 Setting Mode Setting Menu Air correction factor setting Throttle opening large Hi Thrtl 30 Air correction factor setting Throttle opening small Lo Thrtl 30 Throttle opening setting TH Point 32 Air correction engine RPM set...

Page 3: ...3 Chapter 1 Introduction Safety Precautions 4 Features of this Product 6 Names and Functions of Parts 8 Parts list 8 Names of parts 9 Meanings of operation symbols appearing in this document 9 ...

Page 4: ...oduct with safety Keep the Instruction Manual in hand and refer to it whenever needed The Instruction Manual describes the items that you must observe to operate the product without giving any injury to you other people and damage to property The meanings of pictorial indications signal words are as shown on right Please understand their contents correctly before starting to read the text Explanat...

Page 5: ...lectric parts will be damaged The malfunction may damage the vehicle CAUTION The driver must not operate this product during driving This may interfere with driving operations resulting in an accident Mount this product securely Do not install it in an unstable place that may interfere with driving This may interfere with driving resulting in an accident When installing the product remove the nega...

Page 6: ... direction switch with a center pushbutton and a rotary switch gets rid of the button to button distance and permits quick operations thereby providing efficient operation of the unit Battery less memory that can keep initial setup data in the memory even if the vehicle battery is disconnected With the use of the EEPROM the initial setup data is not lost unless initialization is performed even if ...

Page 7: ...e pressure Karman swirl sensor frequency knocking and engine revolution speed When each item is set the car condition can be precisely judged The setting for the engine speed can also be used as a shift timing point Knocking Spontaneous ignition is caused by the heat and pressure of mixed air in the burning portion of non combustion gas which is far from the plug and the heat of combustion chamber...

Page 8: ...e parts list please contact the dealer of purchase 1 Main unit 2 Instruction manual Operation part 3 Wiring diagram by model 4 Operation transition diagram 5 Warranty 6 Signal harness 7 Splitting harness 8 Splice 9 Plug 10 Male sleeve 11 Plug receptacle 12 Female sleeve 1unit 1volume this document 1volume 1sheet 1sheet 1sheet 1piece 6pieces 4pieces 4pieces 4pieces 4pieces SUPER AIRFLOW CONVERTER 1...

Page 9: ...r pushbutton Rotary switch SUPER AIRFLOW CONVERTER Optical sensor CDS sensor VFD display section Names of parts Meanings of operation symbols appearing in this document Press the right part of the center switch Press the upper part of the center switch Press the left part of the center switch Press the lower part of the center switch Press the center pushbutton Turn the rotary switch counterclockw...

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Page 11: ...nitial setup ___________________ 13 Setting the sensor type and sensor number 13 Setting the number of cylinders 13 Checking the throttle sensor voltage 13 Setting the throttle sensor type 13 Learning the throttle opening 13 Correcting the knocking signal 13 Initial Setup ...

Page 12: ... switch Make sure that any abnormal noise or offensive smell is not produced from the SAFC II and the Vehicle Turn the ignition switch off The setting data is stored in the memory Start the engine Perform initial setup Perform initial setup securely by referring to page 13 If no display appears or any abnormal noise or offensive smell is produced from this product despite proper installation disco...

Page 13: ...Sensor chk Select Sensor chk and check the throttle sensor voltage with the throttle fully closed and once with the throttle fully open ４ Setting the throttle sensor type P 50 Car Select Select Car Select When the throttle sensor voltage is 0 V to 1 V fully closed in the previous step set the arrow to the upward direction When the throttle voltage is 3 V to 5 V set the arrow to the downward direct...

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Page 15: ...pter 3 Outline of Operating Method Outline of Functions and Operating Method 16 What to be performed in the monitor mode 18 What to be performed in the setting mode 19 What to be performed in the etc mode 19 ...

Page 16: ...tting mode This mode is used for the user to perform settings The air correction factor throttle open ing air correction engine RPM and the upper limit for deceleration air is set Knocking signal correction and data file are also controlled etc mode This mode is used to perform various settings including initial setup The initial setup display scale setting and warning settings are set according t...

Page 17: ... correction factor setting throttle opening small 3 TH Point Throttle opening setting 4 Ne Point Air correction engine RPM setting 5 Dec Air Deceleration Air upper limit setting 6 Knk Set Knocking signal correction 7 Data File Data file control Setup items 1 Sensor Type Sensor type and sensor number setting 2 Car Select Number of cylinders and throttle type setting 3 Sensor chk Sensor check 4 Disp...

Page 18: ...and displayed P22 Monitor 1Channel 4Channel A plot display is made by using the engine RPM for the axis P27 Monitor Rev Y Regarding the 3 items Afl Prs and Kar the contents that can be displayed depend on the intake air volume measuring equipment of the vehicle For example in the case of a car equipped with a hot wire type airflow sensor Afl can be displayed but Prs is not displayed NOTE Contents ...

Page 19: ...6 Pass Lock P56 Password setting change 7 VFD Bright P58 VFD brightness adjustment 8 Program Ver P59 Program version check 9 Initialize P60 All data initialization 1 Hi Thrtl P30 Air correction factor setting throttle opening large 2 Lo Thrtl P30 Air correction factor setting throttle opening small 3 TH Point P32 Throttle opening setting 4 Ne Point P34 Air correction engine revolution speed settin...

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Page 21: ...21 One of items 1 to 4 is selected and displayed _________________________22 A plot display is made by using the RPM for the axis ______________________27 Chapter 4 Monitor Mode ...

Page 22: ...y 3 channel display 4 channel display Select Enter 1 item data display 2 item data display 3 item data display 4 item data display Analog display example Function Pause and peak hold Of the following 8 items one of channels 1 to 4 is selected and displayed A numeric display analog display graphic display and digital analog display are available as the display method A pause is also available in ea...

Page 23: ...lay item Select a display channel and operate the right part of the switch to set the display item selection mode The numeric value of channel and the display item are displayed as a reversing display In this status operate the upper part or lower part of the switch to select a display item 3 Select a display item of another channel Operate the left part of the switch in the display item selection...

Page 24: ...g display Nx Nx Nx Nx res 1 A f l 2 P r s 3 K a r 4 T h r 5 R e v 6 K n k 7 A l l Contents of the menu Airflow usage ratio Intake pressure Karman sensor Throttle opening Engine RPM Knocking All items Peak value reset setting Select an item to be reset and enter it Go back without resetting or For the analog display up to 2 items are displayed When 3 Channel or more is selected selection No 1 and 2...

Page 25: ...n be displayed but Prs cannot be displayed NOTE The memory time is as follows 1Channel 60sec 2Channel 30sec 3Channel 20sec 4Channel 15sec The following figure shows an example when 1 Channel is selected Temporary stop Restart Ordinary display Memory start Replay start Rightward scroll Pause Rightward scroll Leftward scroll Restart Replay function Reset Remaining time Memory function Memory stop Re...

Page 26: ...e Peak display Reset The numeric display blinks Check if warning function is set When Rev engine RPM Knk Knocking level or other parameter is displayed the numeric value blinks as a reversing display after it exceeds the set the RPM or the preset level P 54 The numeric display or analog display cannot be moved Check if pause function is set If Pause is set the numeric display or analog display wil...

Page 27: ...ory time 30sec or Memory start Memory stop The memory of 1 to 4 Channel is cleared Pr Monitor Menu Rev Y A plot display is made by using the RPM for the axis Nx or Pr or Monitor menu Nx or Pr Replay time Replay function Nx 1 point display 10 point display Nx Nx Map trace display Trace clear 1 Airflow Airflow usage ratio 2 Pressure Intake pressure 3 Karman Karman sensor frequency 4 Throttle Throttl...

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Page 29: ...actor setting Throttle opening large 30 Air correction factor setting Throttle opening small 30 Throttle opening setting 32 Air correction engine RPM setting 34 Deceleration air upper limit setting 36 Knocking signal correction 38 Data file 40 ...

Page 30: ...rected by the air correction factor As an output signal the corrected air volume value is converted back into an airflow signal and then this signal is output to the electronic control unit ECU Accordingly supposing that the correction factor is 10 the ECU recognizes that the air volume has increased 10 so fuel is increased about 10 For air correction factor setting the air correction factor can b...

Page 31: ...actual display is shown in the lower left figure The screen is scrolled by pressing the left or right part of the center switch If either the upper part or the lower part of the center switch is pressed during the ordinary display this display is changed into a reduced display as shown in the lower right figure In this case all setting graphs are displayed on a single screen The reduced display ca...

Page 32: ...se or decrease the numeric value When the rotary switch is turned clockwise the numeric value is increased When this switch is turned counterclockwise the numeric value is decreased 3 End the setting Select Pr in the popup menu after pressing the center pushbutton or press the left part of the center switch at throttle opening Lo selection and the setting menu will reappear Setting range The value...

Page 33: ...opening of 40 can be obtained by the following formula 1 2 3 1 40 10 50 10 At a throttle opening of 50 or more the air correction factor is equal to Correction factor set at Hi Thrt 3 At a throttle opening of 10 or less the air correction factor is equal to Correction factor set at Lo Thrt 1 When the throttle opening is set to Lo 10 and Hi 50 the air correction factor at a throttle opening of 40 i...

Page 34: ... initial value Ne Point Engine revolution point 800 9800 rpm 1000 1600 2200 2800 3400 4000 4600 5200 5800 6400 7000 7600 Settable by 200 rpm steps 3 The air correction engine RPM setting mode is set or Pr Ne Engine RPM Ne01 Ne02 Ne03 Ne04 Ne05 Ne06 Ne07 Ne08 Ne09 Ne10 Ne11 Ne12 For Ne02 the engine revolution speed cannot be set to a lower value than that of Ne01 The same can be said for the other ...

Page 35: ...ngine RPM setting and throttle opening setting 1 Select an engine RPM point Press the upper or lower part of the center switch or turn the rotary switch counter clockwise or clockwise to select an engine RPM point The selected item is displayed as a reversing display When the rotary switch is turned clockwise the cursor is moved upward When this switch is turned counterclockwise the cursor is move...

Page 36: ...rflow output voltage at the engine RPM set at Ne01 and Ne02 Ne01 and Ne02 of Ne Point below the Thr throttle opening or Setting menu ２ Select Dec Air in the setting menu １ Select Setting in the main menu or Main menu Nx or Pr At an engine RPM over Ne02 deceleration air upper limit setting is not active When Thr is deceleration air upper limit setting is not active NOTE 3 The deceleration air upper...

Page 37: ...r numeric value than the airflow using ratio checked in 2 1 1 Select a throttle opening and an engine RPM Press the upper or lower part of the center switch or turn the rotary switch counter clockwise or clockwise to select an engine RPM point The selected item is displayed as a reversing display When the rotary switch is turned clockwise the cursor is moved upward When this switch is turned count...

Page 38: ... after pressing the center push button or press the left part of the center switch and the setting menu will reappear or Setting menu ２ Select Knk Set in the setting menu １ Select Setting in the main menu Main menu Nx or Pr 3 The knocking signal correction mode is set or Pr Setting is performed to convert a signal obtained from the knock sensor into a knocking level Corrections are made in the 2 p...

Page 39: ... 3390 rpm and 48 respectively If correction fails the RPM remains 3500rpm Perform correction again in the specified RPM area ３ After completion of correction Select Knock Knk in the monitor mode and check that the mark disappears on the display When this mark disappears the correction is completed If not perform correction once again Increase the RPM to the specified RPM area After the RPM become ...

Page 40: ...ing in the main menu or Main menu Setting menu or or Pr Nx 3 The data file control mode is set or Pr Setting Menu Data File Data file Both File 1 and File 2 cannot be turned on or off simultaneously When one of them is turned on the other is turned off NOTE Enter Enter Go back Go back or ...

Page 41: ...eappear Saving and loading setting data The 4 items air correction factor Hi Lo setting throttle opening setting air correction engine RPM setting and deceleration air upper limit setting can be saved and loaded in the data file If any setting is changed in these 4 items the changed setting is automatically saved in the file file in the ON status Auto Save function In the initial status at deliver...

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Page 43: ...ting __44 Number of cylinders and throttle sensor type setting 50 Sensor check 52 Display scale setting 53 Warning setting 54 Password setting and change 56 VFD brightness adjustment 58 Program version check 59 All data initialization 60 What to do in such a case 62 ...

Page 44: ...tion P49 Sensor selection 1 Select a sensor type Press the upper or lower part of the center switch and turn the rotary switch counterclockwise or clockwise to select a sensor type The selected item is displayed as a reversing display When the rotary switch is turned clockwise the cursor is moved upward When this switch is turned counterclockwise the cursor is moved downward 2 Go to the sensor num...

Page 45: ...leted exit from the setting screen At this time the set numeric value is saved For Hot Wire set the sensor output calculation method Select Nx in the popup menu after pressing the center pushbutton or press the right part of the center switch at Out selection and the sensor output calculation method setting screen will appear or Go back Increase decrease or 1 Select In Out Operate the left or righ...

Page 46: ...er or Go back 1 Select In or Out Operate the left or right part of the center switch to select In or Out The selected numeric value is displayed as a reversing display 2 Set the calculation method Select a numeric value and press the upper or lower part of the center switch or turn the rotary switch counterclockwise or clockwise to select a calculation method When the rotary switch is turned clock...

Page 47: ...g the sensor output calculation method 2 Skyline GT R When the product is used with two airflow sensors and an ECU with twin airflow sensor control Because of 2 airflow sensors Because of 2 engine control unit inputs the measured air volume of the 2 airflow sensors is averaged Ave and its result is output In this case airflow sensor 1 measures an air volume of 4 and airflow sensor 2 measures an ai...

Page 48: ...s an air volume of 6 Setting the sensor output calculation method 4 Skyline GT R using an airflow sensor When the product is used with an airflow sensor and an ECU with twin airflow sensor control ＥＣＵ ＥＣＵ Because of 2 airflow sensors Measured air volume 4 Measured air volume 6 Input air volume 10 Output air volume 10 Airflow sensor 1 Airflow sensor 2 Because of a single airflow sensor Measured air...

Page 49: ... the cursor is moved downward 2 End the setting Select Pr in the popup menu after pressing the center pushbutton or press the left part of the center switch and the etc menu will reappear or Increase decrease 1 Set the sensor number Press the upper or lower part of the center switch or turn the rotary switch counterclockwise or clockwise to increase or decrease the numeric value When the rotary sw...

Page 50: ...Select an item and press the upper or lower part of the center switch or turn the rotary switch counterclockwise or clockwise to increase or decrease the numeric value When the rotary switch is turned clockwise the numeric value is increased When this switch is turned counterclockwise the numeric value is decreased For a rotary car set Number of rotors 2 For a Toyota car mounting a V8 engine set 4...

Page 51: ... direction of the arrow sensor type When the rotary switch is turned clockwise the operation is the same as when the upper part of the center switch is pressed When the rotary switch is turned counterclockwise the operation is the same as when the lower part of the center switch is pressed 5 End the setting Select Pr in the popup menu after pressing the center pushbutton or press the left part of ...

Page 52: ...mality and each sensor status can be checked When setting the throttle sensor type on the previous page it is necessary to check the throttle sensor voltage Regarding a vehicle provided with multiple knocking sensors the sensor output value of each knocking sensor signal is checked and wiring is performed to a sensor signal wire with the highest output value ２ Select Sensor Chk in the etc menu １ S...

Page 53: ... When this switch is turned counterclockwise the numeric value is decreased For setting another item Operate the left part of the center switch and repeat steps 1 and 2 3 End the setting Select Pr in the popup menu after pressing the center pushbutton or press the left part of the center switch at item selection and the etc menu will reappear etc Disp Scale Display scale setting ２ Select Disp Scal...

Page 54: ...arding the airflow using ratio suction tube pressure Karman swirl sensor frequency knocking or engine revolution speed the indicator blinks to give a warning to the driver when the indicated value exceeds the set warning value ２ Select Warning Set in the etc menu １ Select etc in the main menu Main menu or or Pr Nx etc menu 3 The warning setting mode is set or Pr or Decide Decide Go back Go back or...

Page 55: ...For setting another item Operate the left part of the center switch and repeat steps 1 and 2 3 End the setting Select Pr in the popup menu after pressing the center pushbutton or press the left part of the center switch at item selection AflW PrW KarW KnkW RevW and the etc menu will reappear Setting range The value in parentheses is the initial value A f l W Airflow using ratio 50 100 OFF OFF Sett...

Page 56: ... as a reversing display When the rotary switch is turned clockwise the cursor is moved upward When this switch is turned counterclockwise the cursor is moved downward 2 Set or change a password Select Nx in the popup menu after selecting an item and pressing the center pushbutton or press the right part of the center switch to go to the password input screen 3 End the setting Select Pr in the popu...

Page 57: ...selecting Change Pass 1 Input the password Input the current password by performing the same procedure as that for Lock Mode In the initial status the password is 0000 After inputting the password press the center pushbutton and select Nx in the popup menu To abort it select Pr or Tp in the popup menu to exit from the mode 2 Input a new password Input the new password by performing the same proced...

Page 58: ...ect Pr in the popup menu after pressing the center pushbutton or press the left part of the center switch at Day or press the left part of the center switch at Nig and the etc menu will reappear 3 The VFD brightness adjustment mode is set or Pr etc menu or or Pr Nx ２ Select VFD Bright in the etc menu １ Select etc in the main menu Main menu etc VFD Bright VFD brightness adjustment or Decide Decide ...

Page 59: ... main menu Main menu or Pr etc menu or Nx 3 The program version check mode is set End the check Select Pr in the popup menu after pressing the center pushbutton or press the left part of the center switch and the etc menu will reappear The program version information is displayed or Pr or Go back Decide Go back ...

Page 60: ...ion switch Exit from the mode without initialization In the all data initialization mode perform one of the following operations Select No and press the center pushbutton When No has been selected operate the left part of the center switch When Yes has been selected operate the right part of the center switch Then the etc menu will reappear 3 The all data initialization mode is set etc menu ２ Sele...

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Page 62: ...rection of the ECU and checking the connector shape and the number of pins The revolution speed display is not normal Check if the number of cylinders is correctly is set Genuine tachometers have a slight error Even when a deviation of 200 to 300 rpm occurs at a high speed revolution this is normal The numeric value of this product is a correct revolution speed The throttle opening display is not ...

Page 63: ...the harness is securely connected Check if the sensor type is wrongly set The engine does not blow Check if the harness is securely connected Check if the sensor type is wrongly set Check if the fuel is not set to an extremely thick level by the correction factor setting The engine seems to be overloaded Check if the harness is securely connected Check if the sensor type is wrongly set Check if th...

Page 64: ...d a doubt error or other fault inform us of it 3 A part or all of this document may not be reproduced in any form without prior written permission and also may not used without the prior written permission of A PEX CO LTD under the copyright except for private use 4 We shall disclaim all the responsibility for any damage resulting from a loss of memory data due to a failure repair or any other rea...