This is the replacement MEM-cal with the 1995 S4s code pre-installed. You can keep your original and have this one as a spare.

Benefits include smoother idle, 1.0 bar boost, and better low-end driveability.

Feel free to contact us about custom programming. We are able to change almost any parameter that you would like, except the rev limit. Idle speeds, fan switches, and the entire fuel/ignition map can be customized.

• MALF 24 VSS Low
• MALF 23 MAT Sensor Open
• MALF 22 TPS Low
• MALF 21 TPS High
• MALF 15 CTS Low
• MALF 14 CTS High
• MALF 13 O2 Sensor
• MALF 41 Engine Speed Signal
• MALF 12 No Reference Pulses
• MALF 42 EST Circuit
• MALF 26 Quad Driver Module
• MALF 35 Idle Speed Error
• MALF 34 MAP Sensor Low
• MALF 33 MAP Sensor High
• MALF 32 EGR Diag
• MALF 66 A/C Pressure Open or Shorted
• MALF 25 MAT Tem High
• MALF 65 Fuel Injector Low Current
• MALF 62 Oil Temp High
• MALF 53 Battery Voltage High
• MALF 31 Baro Sensor Out of Range
• MALF 51 MEM-Cal Error
• MALF 45 O2 Rich
• MALF 44 O2 Lean
• MALF 43 ESC

• Fuel Cut Off (Speed)
• Fuel Resume (Speed)
• Fuel Cut Off (Eng Speed)
• Fuel Resume (Eng Speed)
• Fan On (Coolant)
• Fan Off (Coolant)
• High Boost Fuel Cut-Out Pressure
• High Boost Fuel Resume Pressure
• Engine Overheat Temp
• Engine Overheat Reset Temp
• Fan Turn Off Speed When A/C On
• Maximum Permitted IAC Position
• Boost Control Threshold Temp Minimum
• Boost Control Threshold Temp Maximum
• Overboost Duration
• Overboost RPM Trigger Threshold
• Overboost Maximum Speed Threshold
• Overboost Switch-off Speed
• O2 Sensor A/F Ratio Switch Point
• Our ID Number
• Serial Number
• Overboost DC Add-on
• Boost Control - Minimum RPM
• Boost Closed-Loop Enable - Minimum TPS
• Road Speed Teeth
• Engineering Bypass
• Spark Reference Angle
• DCFO MPH Disable
• DCFO RPM Threshold
• DCFO MPH Enable
• DCFO Fuel C/O MAP Enable
• DCFO Fuel C/O MAP Disable
• DCFO Minimum Time Between C/O
• Speedo Driver Value
• Decel EnLean Enable Delta %TPS Threshold
• Decel Enlean Enable Delta MAP Threshold
• Spark Domain Correction
• Maximum Spark Advance Relative to TDC
• Start RPM ECM Control Limit
• Crank Sensor Position
• Base Pulse Constant
• Sync Fuel Injector Delay Factor
• Maximum Async Injector Pulse Width
• Minimum Async Injector Pulse Width
• Minimum Injector Pulse Width for Double Fire
• Maximum Injector Pulse Width for Single Fire
• Minimum RPM to Stay in Single Fire Mode
• Minimum RPM to Enable Single Fire Mode
• Accel Enrich Enable Delta MAP Threshold
• AE TPS Theshold for 2X Delta MAP Threshold
• Accel Enrich Enable Delta TPS Threshold
• BLM Cell RPM Boundary Hysteresis
• BLM Cell MAP Boundary Hysteresis
• Maximum BLM Value
• Minimum BLM Value
• Max Startup Temp for Crank AFR 2X Mod
• Max Startup Temp for Crank AFR Lean Bias
• # Starts to Clear MALF
• MALF 66 Upper limit
• MALF 66 Lower Limit
• Timer for MALF 66
• Minimum Cool Temp for Stoichiometric AFR
• PE Delay Hi/Lo Baro Threshold
• PE Delay Bypass RPM Threshold

• ECM Switch Table
• ECM Constant Table
• Main Spark Advance vs. RPM vs. MAP
• Closed TPS Spark Advance vs. RPM
• Main Spark Pwr Enrich vs. Low RPM vs. MAP
• Main Spark Pwr Enrich vs. High RPM vs. MAP
• Spark Advance Correction - Coolant vs. MAP
• Spark Advance Correction - MAT vs. MAP
• Maximum Knock Retard vs. MAP
• Target Idle RPM vs. Coolant (A/C Off)
• Target Idle RPM Vs Coolant (A/C On)
• Default IAC Steps vs. Coolant
• Volumetric Efficency vs. Lo RPM vs. MAP
• Volumetric Efficency vs. Hi RPM vs. MAP
• Boost vs. RPM
• Boost Controller Base DC - TPS vs. RPM
• Secondary Injectors Base DC - RPM vs. MAP
• Secondary Injector PW Correction vs. Batt Voltage
• Spark Retard During Boost
• Idle Base Cool. Adv. Correction vs. Cool. Temp.
• Injector PW Offset vs. Batt V vs. Mode
• %Vol. Efficency vs. RPM vs. MAP (Closed Throttle)
• Delta MAP Accel Enrich Multiplier vs. %TPS
• Accel Enrich Delta TPS Pulse Width vs. Delta TPS
• Accel Enrich Delta TPS Factor vs. Vacuum
• Accel Enrich Multiplier vs. Speed
• Accel Enrich Temperature Correction vs. Cool. Temp
• Accel Enrich MAT Correction vs. MAT
• BLM Cell boundaries RPM
• BLM Cell Boundaries MAP
• TPS vs. Secondary Injector Base
• Crank AFR Multiplier vs. Startup MAT
• Crank AFR Multiplier vs. No. 2X Pulses
• Crank AFR vs. Startup Coolant Temp.
• Crank AFR Lean Bias vs. Crank RPM
• Crank AFR TPS Mult. Correction vs. Startup Cool.
• Crank AFR Multiplier vs. TPS
• Cold AFR Correction vs. MAP
• Cold AFR vs. Coolant Temp. (at Idle)
• Cold AFR vs. Coolant Temp.
• Eng Runtime for Choke AFR Mod vs. Start Cool-Drive
• Choke AFR Mod vs. Startup Cool vs. Stage-Drive
• Eng Runtime for Choke AFR Mod vs. Startup Cool-P/N
• Choke AFR Mod vs. Startup Cool vs. Stage-P/N
• Power Enrich Mode Delay Time vs. Baro
• Power Enrich Delay Bypass TPS vs. Baro
• Power Enrich Mode Enable TPS vs. RPM
• Power Enrich AFR vs. Coolant Temp.
• Power Enrich AFR Multiplier vs. RPM