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The degree of which will depend greatly on the type of forced induction you are The ECU uses some degree of “learning” so the first pull you make may notīe an accurate representation of how the car will perform on the street after a few drive cycles.įor forced inducted vehicles, you will most likely want to decrease the values in this table in order to Ignition advance adjustment, keep in mind that you will want to make multiple runs with the same Mapĭata until power stabilizes. When using a dyno to quantify the power changes from your Small changes in a very progressive manner. Values (timing) throughout the mid and high range RPM and TP (Load) addresses. Tuning Tips – Additional power can be realized on naturally aspirated vehicles by increasing the table Higher value, the earlier the ignition event occurs the lower value, the later the ignition event occurs. Represent an exact Degrees BTDC (before top dead center), you can still tune in a similar fashion. Table values shown are NOT ignition advance degrees but rather anĪrbitrary value meant to represent the theoretical burn time for the fuel necessary to reach peak cylinder pressure at a Nissan dictated degrees ATDC for maximum torque. The table is referenced by RPM for the X-axis breakpoints and Theoretical Pulsewidth This is the primary ignition table used when the engine is NOT experiencing a high level of detonationĮvents (knocking).
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These tables as excessive detonation can damage your engine. Tuning Tips – These tables do not normally need to be adjusted from stock. The Knock Sensor is being used by the ECU or “0” meaning the Knock Sensor data will be ignored. The values in the table can either be “1” meaning It directly relates to the Primary Ignition A or B tables. These tables represents when the ECU will utilize the knock sensor to make Ignition Advance corrections.
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If you feel the knock sensor is being “overly sensitive”, there may be another root The knock sensor is meant to protect theĮngine, not rob power. This table as excessive detonation can damage your engine. Tuning Tips – This table does not normally need to be adjusted from stock. Knock Sensor is being used by the ECU or “0” meaning the Knock Sensor data will be ignored. The values in the table can either be “1” meaning the This table represents when the ECU will utilize the knock sensor to make Ignition Advance corrections. Tuning this table too aggressive may result in engine damage. (knocking), we highly recommend that you do not make it overly aggressive. Tuning Tips – Since this table is used only when the engine has experienced excessive detonation The earlier the ignition event occurs the lower value, the later the ignition event occurs. While not a hard-coded value meant to represent anĮxact Degrees BTDC (before top dead center), you can still tune in a similar fashion. Nissan dictated degrees ATDC for maximum torque. Meant to represent the theoretical burn time for the fuel necessary to reach peak cylinder pressure at a Table values shown are NOT ignition advance degrees but rather an arbitrary value The table is referenced by RPM for the X-axis breakpoints and Theoretical Pulsewidth for the This is the primary ignition table used when the engine is experiencing a high level of detonation events Knock control occurs throughout the ignition map.ġ88-193 = "1" aggressive area of the closed loop
HOW TO CHECK THE CAM SENSOR WITH NISSAN DATA SCAN 2 MODS
The car is strong at the track from 4000+rpm with the mods I have, but if more timing can be had all the better. I'm going to log using nissan data scan 2 and see if the ignition value is in agreement, then switch the throttle body back to oem. Maybe the sensors are reading incorrectly. I replaced both cam bank sensors with rock auto Hitachis a few months ago, but kept the crank sensor unchanged. Hmm, the rev limit with fuel cut is 6700rpm so I'm not close to that.
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