The JMM Sequential tuner, unlike other interceptor units, takes complete control of the injection system in your vehicle to control the fuel injectors. In turn the ignition control system in the JMM tuner simply takes control of crank and cam sensors and allows us to manipulate ignition timing.

Most inteceptors simply increase or decrease a voltage to a sensor, for eg map sensor, to adjust fuel injectors. This causes a problem as the Cars ECU also uses this sensor to control the ignition timing. This can, and in some cases make tuning very hard and also unaccurate thru all the rev range and at differing conditions like increased or abnormal air temps, or cold winter mornings.

The JMM Inteceptor takes over the actual injector system, ie we cut off the injector wires and join our ecu to them. This in turn does not effect any other functions your standard ecu has.

Other functions of the JMM Inteceptor are boost control, 2 aux outputs, 2 aux inputs and variable boost control (turn it up and down)if needed, map sensor clamps and maf clamps, MAF meter idle control systems. Built in 3 bar map sensor for turbo tuning etc.

The unit can also be removed and a blanking plug installed to return to factory tune if needed.