Why does my RPM gauge bounce?
Why does my RPM gauge bounce?
What does it mean when your RPM gauge jumps? The most likely cause is that your clutch is slipping. Either because the mechanism isn’t working properly (rare but possible) or the clutch is worn (very likely). Have you checked your transmission oil level?
Where are the prongs on a tach needle jump?
When mine were jumping I would take the connection apart and just blow in the clip to clean it out and the rpms would not jump anymore. The connection is located just to the left of the coil packs. It is a 7 prong connection when you take it off. It should have 3 prongs a space and 4 prongs.
Where does the tach gauge and ECU come from?
The ECU RPM count is from the CAS but the Gauge is from the output of the Tach Gate on the 90 coil pack. That signal is conditioned by the 90 noise filter before going to the gauge and ECU. The ECU RPM count is from the CAS but the Gauge is from the output of the Tach Gate on the 90 coil pack.
Why does my tach needle jump at 3000 rpm?
If not make sure to check the ICM like i stated earlier because that was my issue with my tach. The tachometer jumps around when I’m holding a stable throttle, i.e. when I’m cruising at 3000 rpm it’ll jump back a forth from 3000-3500 rpm after I rebuilt my car.
When mine were jumping I would take the connection apart and just blow in the clip to clean it out and the rpms would not jump anymore. The connection is located just to the left of the coil packs. It is a 7 prong connection when you take it off. It should have 3 prongs a space and 4 prongs.
The ECU RPM count is from the CAS but the Gauge is from the output of the Tach Gate on the 90 coil pack. That signal is conditioned by the 90 noise filter before going to the gauge and ECU. The ECU RPM count is from the CAS but the Gauge is from the output of the Tach Gate on the 90 coil pack.
If not make sure to check the ICM like i stated earlier because that was my issue with my tach. The tachometer jumps around when I’m holding a stable throttle, i.e. when I’m cruising at 3000 rpm it’ll jump back a forth from 3000-3500 rpm after I rebuilt my car.
