erratic tach reading

Originally Posted by mults If you have access to an OBDII Bluetooth reader and app on your phone (like Torque Pro), use it to see what is coming from the

		Nissan 370Z Forum > Nissan 370Z Tech Area > Engine & Drivetrain
erratic tach reading

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1 Post By JARblue
1 Post By SouthArk370Z
2 Post By mults

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06-23-2016, 05:48 PM

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SouthArk370Z

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Quote:

Originally Posted by mults

If you have access to an OBDII Bluetooth reader and app on your phone (like Torque Pro), use it to see what is coming from the computer. If this reads OK and the needle is still not accurate, I would say that there is something physically wrong with the tach (electrical or mechanical)

I don't think the car would run right if ECM was getting a bad signal or computing a bogus value. But it's easy enough to check and OP is going to want a reader before this project is over (IIRC, all gauges, except clock in triple-gauge get their data over OBD/CAN) so why not?

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