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Misfire Generator

Misfire Generator is very powerful tool in OBD misfire calibration of Gasoline Engine Control System. The Misfire Generator is very reliable and easy to use and carry, low energy loss due to energy absorption method used.


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The ignition state in each cylinder is judged by monitoring the ignition control signal coming from the ECU. The misfire command signal, generated according to the configurations of the users, will block the corresponding ignition signals and thus cause the engine misfire.

Depending on ECU directly driving primary ignition coil or not, the Misfire Generator can support Smart Coil system and Non-smart Coil System.

It has two Misfire Modes to be selected: Periodic Misfire, Random Misfire. And misfire rate can be set from 0~99.9%, accuracy is +/- 0.1%.

1)1/n mode (Periodic mode): In this mode, misfires are generated periodically once every n events, where n is the number on the pushwheel switch.

2)n% mode (Random mode): In this mode, misfires are generated randomly at the rate set by the n%, where n is the number on the pushwheel switch.