TRANSLATOR PLUS MANUAL- for Turbo Buick, L67 or LT1
MAF Translator / Translator Plus Description
The MAF Translator (MAFT) and Translator Plus (T+) units are small devices intended to allow the vehicle owner to adjust the fuel delivery and spark advance (T+) of the engine. This is accomplished by intercepting the controlling signals going to and from the PCM (Powertrain Control Module). By modifying these signals the rate of fuel delivery and ammount of spark advance is directly adjusted. These adjustments are not accomplished by indirect means. For example, MAFT and T+ adjust spark advance by modifying the spark control signal (EST) and not manipulating coolant or intake air temperature signals. For this reason, the warmup driveability is not affected.
The user adjustments are inside the unit. With the exception of MAF BASE in a retrofit application, the controls adjust in a logical manner. Zero is the 'no change' position with clockwise rotation increasing spark advance and fuel delivery (richer); and counter-clockwise rotation reduces spark advance and fuel delivery (leaner).
The MODE switch is a 4 position 'DIP' switch used to set the basic application information.
Use a small screwdriver or similar instrument to gently set the switches. The warranty does not cover 'Gorilla Damage'. Note: the switches are only checked once at Key-On.
The MAF BASE adjustment is for selecting the basic airflow characeristics of the MAF sensor in relation to the vehicle/engine configuration. It can be used to compensate for non-stock size injectors, modified or transplanted MAF sensors, or other basic fuel delivery offsets. The adjustment has effect over the entire airflow range.
Switch 1 On=6 cylinders Off=8 cylinders
Switch 2 On=Old style ECM (Turbo V6, TPI V8) Off=New style PCM (LT1,LS1,SC3800,Truck)
Switch 3 On=Output signal limited (blocks DTC Code 102 on OBDII vehicles) Should also be set to ON for GN / retrofit vehicles that are not running extender chips
Switch 4 please leave in the OFF position for all cars except LT1 or LS1 when converting to an UNMODIFIED LS6 sensor only then turn on
MAF Base New Style MAF - Old Style ECM New Style MAF - New Style PCM
0 3.5" LT1/LS1 MAF sensor (Turbo V6) No Change
1 3.5" LT1/LS1 MAF sensor (Turbo V6) (richer at idle) 5% Rich
2 3.5" LT1/LS1 MAF sensor (Turbo V6) (leaner at idle) 10% Rich
3 3" Caprice/Impala MAF sensor (Turbo V6) 15% Rich
4 3" Caprice/Impala MAF sensor (Turbo V6)(richer at idle) 20% Rich
5 3" Caprice/Impala MAF sensor (Turbo V6) (leaner at idle) Not used
6 Not used Not used
7 Not used Not used
8 Not used Not used
9 35% Lean
A Not used 30% Lean
B Not used 25% Lean
C Not used 20% Lean
D Not used 15% Lean
E Not used 10% Lean
F Not used 5%
