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AEM Flex Fuel Wideband Failsafe Gauge No FF Sensor 304910 User Manual
AEM Flex Fuel Wideband Failsafe Gauge No FF Sensor 304910 User Manual
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Page 12 Data Logger The Wideband Ethanol Boost has an internal logger that can store approximately 2.5 hours of data. The system maintains two levels of data logs. First, all AFR data points are stored and downloadable for viewing on the AFR vs. Pressure Graph in the W ideband Ethanol Boost Configuration tab. Second, all inputs, outputs, and alarm triggers are logged in special log file format for viewing with the AEMdata software that comes as part of the W ideband Failsafe download package. Once the logger memory has filled up, the logger will begin to loop log and the oldest data will be discarded as new data is collected (data points that were collected will slowly start disappearing). The following is a basic guideline on how to use the internal data logger. NOTE: The internal data logger is always running when 12V is present. 1. Connect USB cable to PC. 2. In the W ideband Ethanol Boost Configuration tab under Logger, click Download Log. All logged AFR data points will now be displayed in the AFR vs. Pressure Graph. 3. To download the log to the PC, click YES when prompted to save data to disc and then save log in desired location. 4. Click YES when prompted to open file in AEMdata, the saved data log will now open as shown below. Plot One Parameter Description AFR Current measured AFR (Gasoline) AFR Upper Limit Current upper AFR limit value as set from the Wideband Ethanol Boost Configuration tab AFR Lower Limit Current lower AFR limit value as set from the Wideband Ethanol Boost Configuration tab Plot Two Parameter Description Manifold Pressure Current measured Manifold Pressure in PSIg Engine Speed Current measured RPM, if connected and used Plot Three Parameter Description Alarm Source Indicates what triggered the alarm condition; 3-low AFR condition, 5-high AFR condition, 3-auxiliary input, 9- alarm test Alarm Status Indicates state of alarm; 1-alarm triggered, 0-alarm not triggered Alarm Reset Limit Alarm Reset value Alarm Reset Counter Counts up from zero to Alarm Reset value once AFR has returned into the acceptable range Alarm Delay Limit Alarm Delay value Alarm Delay Counter Counts up from zero to Alarm Delay value when AFR occurs outside the high or low AFR limits; once full Alarm Delay value is reached the alarm will trigger; counter will reset back to zero if AFR returns back into the acceptable range once count up has began
Page 13 Output Configuration The Wideband Ethanol Boost has one ground (low side) output that is triggered when an alarm condition exists. This output can be used in a multitude of ways to reduce boost, retard ignition timing, or otherwise protect an engine in the event there is a problem with the fuel system. The following is an index of possible auxiliary devices that can be triggered by the alarm output: AEM EMS Function Description Nitrous Fuel & Ignition Maps Use the ground output to trigger the nitrous fuel and ignition maps; ignition timing can be reduced and fuel can be added Boost Switch Use the ground output to trigger the boost switch; a lower boost value can be targeted Two-Step Use the ground output to trigger the two-step; a lower engine rev limit can be selected MSD Ignition Products Product Description DIS2 (62112) Brown wire: use a relay to apply +12V to trigger ignition interrupt Blue wire: use a relay to apply +12V to trigger two step Pink wire: use a relay to apply +12V to trigger timing retard DIS4 (62152) Brown wire: use a relay to apply +12V to trigger ignition interrupt Blue wire: use a relay to apply +12V to trigger two step Pink wire: use a relay to apply +12V to trigger timing retard 6AL-2 (6421) Blue wire: use a relay to apply +12V to trigger two step Programmable 6AL-2 (6530) Dark blue wire: use a relay to apply +12V to trigger launch rev limit Light blue wire: use a relay to apply +12V to trigger burn out rev limit Pink wire: use a relay to apply +12V to trigger timing retard Digital 6 Plus (6520) Blue wire: use a relay to apply +12V to trigger two step Pink wire: use a relay to apply +12V to trigger timing retard Start/Retard Control (8982) Violet wire: use a relay to apply +12V to trigger timing retard Timing Controller (8980) Grey wire: ground input to trigger timing retard Warning Light The Wideband Ethanol Boost can also be used to directly activate a warning light (Autometer PN 3239 or similar). Connect the warning light’s white wire to 12V and the low side output to the warning light’s black (ground) wire to turn the light ON. NOTE: High current lights will require a relay to be installed.
Page 14 NC/NO Relay The following are examples of how a NC/NO relay (Bosch PN 0-332-019-203 or similar) can be configured for use with the Wideband Failsafe. Signal Interrupt: The low side (ground) output from the Wideband Ethanol Boost can be used to turn ON a NC (normally closed) relay and interrupt the output signal from a boost controller to its boost solenoid (shown below). NOTE: Be sure that pulling power from the boost solenoid will decrease boost down to the wastegate spring pressure rather than increase boost to the turbochargers max. This will depend on what type of wastegate is used and how it is plumbed with vacuum hose. Auxiliary Device: The low side (ground) output from the Wideband Ethanol Boost can be used to turn ON a NO (normally open) relay and activate or deactivate an auxiliary device that can be used to reduce timing or boost or control some other function when the current requirement is greater than 1.5 amps. Appendix I - Analog Outputs There are 2 analog outputs from the Wideband Ethanol Boost; Ethanol Content (Flex Fuel %) and AFR (O2). These outputs are both linear DC voltage signals that vary with Ethanol Content or AFR. These signals are used for sending information to a data logger or an engine management system such as an AEM EMS, AEM F/IC, AEM Infinity, etc. % = (Volts *25) – 12.5 Voltage Ethanol % 0.5 0 1.0 12.5 1.5 25.0 2.0 37.5 2.5 50.0 3.0 62.5 3.5 75.0 4.0 87.5 4.5 100 5.0 SENSOR ERROR AFR Output Transfer Function AFR (Gas) = (2.375 * Volts) + 7.3125 Voltage AFR (Gas) AFR (Lambda) 0.5 8.50 0.58 1.0 9.69 0.66 1.5 10.88 0.74 2.0 12.06 0.82 2.5 13.25 0.91 3.0 14.44 0.99 3.5 15.63 1.07 4.0 16.81 1.15 4.5 18.00 1.23
Page 15 Appendix II - Changing Faceplate / Bezel The Wideband Ethanol Boost gauge comes with the black bezel and Air/Fuel-Gasoline faceplate installed. However, a silver bezel and multiple faceplates are also included. To change them, orient the gauge so you are looking at the faceplate. Rotate the bezel counter-clockwise to unscrew it from the gauge cup. The bezel, lens, and rubber spacer are all removable. Next, remove the faceplate, but note the two keyways on each side. W hen inserting the new faceplate be cognizant of these keyways and line them up before reassembling. When reassembling the gauge, it may be necessary to apply a light amount of pressure on the lens and spacer to keep the faceplate from rotating when reinstalling the bezel. Do not over-tighten the bezel when reassembling the gauge. Appendix III - AEMnet The following instructions describe the proper installation of the optional AEMnet Harness (30-3439), which is used to connect the W ideband Ethanol Boost AEMnet communication lines to a second (or multiple) AEMnet device(s). Disconnect the W ideband Ethanol Boost 16-pin harness connector from the Wideband Failsafe gauge. The harness connector has a latch on the bottom side that needs to be squeezed as the connector is lightly freed from the gauge. Locate the green and white pre-crimped terminals on the end of the AEMnet Harness. This table shows the Wideband Ethanol Boost connector and pinout including the green and white leads from the AEMnet harness.
Page 16 Before inserting the terminals into the connector, refer to the figure to be sure that the locking mechanism on the terminals is positioned properly in the connector. Insert the AEMnet+ terminal (white wire) into the available Pin 13 on the Wideband Ethanol Boost connector. Push the wire in until the locking mechanism on the terminal and connector lock into place. Pull lightly on the white wire to confirm the locking mechanism has latched. This figure shows the correct placement of the AEMnet+ terminal. Insert the AEMnet- terminal (green wire) into the available Pin 12 on the Wideband Ethanol Boost connector. Push the wire in until the locking mechanism on the terminal and connector lock into place. Pull lightly on the green wire to confirm the locking mechanism has latched. This figure shows the correct placement of the AEMnet- terminal. Connect the Deutsch connector on the opposite end of the AEMnet harness to a mating Deutsch connector on a second device with AEMnet capabilities. The AEMnet harness includes a male and female Deutsch connector, allowing AEMnet devices to be daisy-chained together. Appendix IV – Firmware Updates Do not attempt to update firmware unless instructed by AEM Technical Support. To update the firmware, download the firmware file, if available, from www.aemelectronics.com/downloads. While connected to the gauge with the USB cable, open the AEM Wideband Ethanol Boost Software. Go to the Tools drop down menu and select Update Firmware and follow the on-screen instructions.
Page 17 Appendix V – AEMnet Messages Message ID: 0x00000026 (29-bit) Rate: 10mS continuous Byte Label Data Type Scaling Offset Range 0 Lambda 16 bit unsigned .0001 Lambda/bit 0 0 to 6.5535 Lambda 1 2 Pressure 16 bit unsigned .001 PSI/bit -15 -15 to 50.535 PSI 3 4 Fuel Temperature 8 bit signed 1 degC/bit 0 -40 degC – 125degC 5 Flex Fuel Ethanol Content 8 bit unsigned 1 %/bit 0 0 – 100% 6 (bit0) AFR Ready Boolean 0 = false, 1 = true 0 0/1 6 (bit1) AFR Heater Open Error Boolean 0 = false, 1 = true 0 0/1 6 (bit2) AFR CJ125 Error Boolean 0 = false, 1 = true 0 0/1 6 (bit3) AFR Sensor Heating Up Boolean 0 = false, 1 = true 0 0/1 6 (bit4) AFR Low Voltage Boolean 0 = false, 1 = true 0 0/1 6 (bit5) AFR Heater Time-Out Error Boolean 0 = false, 1 = true 0 0/1 6 (bit6) AFR Heater Short Error Boolean 0 = false, 1 = true 0 0/1 6 (bit7) AFR Overtemp Error Boolean 0 = false, 1 = true 0 0/1 7 (bit0) Alarm Status Boolean 0 = false, 1 = true 0 0/1 7 (bit1) Alarm Source Boolean 0 = false, 1 = true 0 0/1 7 (bit2) Alarm Source Boolean 0 = false, 1 = true 0 0/1 7 (bit3) Alarm Source Boolean 0 = false, 1 = true 0 0/1 7 (bit4) --- --- --- --- --- 7 (bit5) --- --- --- --- --- 7 (bit6) --- --- --- --- --- 7 (bit7) --- --- --- --- --- Message ID: 0x00000027 (29-bit) Rate: 10mS continuous Byte Label Data Type Scaling Offset Range 0 Lambda Upper Limit 16 bit unsigned .0001 Lambda/bit 0 0 to 6.5535 Lambda 1 2 Lambda Lower Limit 16 bit unsigned .0001 Lambda/bit 0 0 to 6.5535 Lambda 3 4 Alarm Delay Limit 16 bit unsigned 1 mS/bit 0 0 to 65,535 mS 5 6 Alarm Delay Counter 16 bit unsigned 1 mS/bit 0 0 to 65,535 mS 7 Message ID: 0x00000028 (29-bit) Rate: 10mS while in alarm mode, not transmitted otherwise Byte Label Data Type Scaling Offset Range 0 Alarm Lambda 16 bit unsigned .0001 Lambda/bit 0 0 to 6.5535 Lambda 1 2 Alarm Pressure 16 bit unsigned .001 PSI/bit -15 -15 to 50.535 PSI 3 4 Alarm Reset Limit 16 bit unsigned 1 mS/bit 0 0 to 65,535 mS 5 6 Alarm Reset Counter 16 bit unsigned 1 mS/bit 0 0 to 65,535 mS 7
Page 18 12 Month Limited Warranty Advanced Engine Management Inc. warrants to the consumer that all AEM High Performance products will be free from defects in material and workmanship for a period of twelve (12) months from date of the original purchase. Products that fail within this 12-month warranty period will be repaired or replaced at AEM’s option, when determined by AEM that the product failed due to defects in material or workmanship. This warranty is limited to the repair or replacement of the AEM part. In no event shall this warranty exceed the original purchase price of the AEM part nor shall AEM be responsible for special, incidental or consequential damages or cost incurred due to the failure of this product. Warranty claims to AEM must be transportation prepaid and accompanied with dated proof of purchase. This warranty applies only to the original purchaser of product and is non-transferable. All implied warranties shall be limited in duration to the said 12-month warranty period. Improper use or installation, accident, abuse, unauthorized repairs or alterations voids this warranty. AEM disclaims any liability for consequential damages due to breach of any written or implied warranty on all products manufactured by AEM. Warranty returns will only be accepted by AEM when accompanied by a valid Return Merchandise Authorization (RMA) number. Product must be received by AEM within 30 days of the date the RMA is issued. UEGO oxygen sensors are considered wear items and are not covered under warranty. Please note that before AEM can issue an RMA for any electronic product, it is first necessary for the installer or end user to contact the EMS tech line at 1-800-423-0046 to discuss the problem. Most issues can be resolved over the phone. Under no circumstances should a system be returned or a RMA requested before the above process transpires. AEM will not be responsible for electronic products that are installed incorrectly, installed in a non-approved application, misused, or tampered with. Any AEM electronics product can be returned for repair if it is out of the warranty period. There is a minimum charge of $50.00 for inspection and diagnosis of AEM electronic parts. Parts used in the repair of AEM electronic components will be extra. AEM will provide an estimate of repairs and receive written or electronic authorization before repairs are made to the product. Need additional help? Contact the AEM Performance Electronics tech department at 1-800- 423-0046 or [email protected], or visit the AEM Performance Electronics forum at: http://aemelectronics.com/forum/