Why is my tachometer not working on my LS1?

It’s finally nearing that time, when you are about ready to start up your LS1 swap only to find that your tachometer does not work still. If you have an existing LS1 swap into a different chassis, and are planning on running the factory or even aftermarket gauges, you will need some sort of translator to get this job done.

Where is the tach wire on a Chevy Camaro?

To locate your tach wire, click here for the 97-2001 Chevy Camaro / Firebird LS1 wiring diagram. The tach wire is found on the RED PCM connector for 1999-2002 vehicles and the GREEN PCM connector on 2003-2006 vehicles.

Do you need a tach for a LS1 swap?

Most early LS1’s do not require this modification to make your tach work, but most LS2 and drive by wire ECU’s will require this fix. Today we’ll be looking at your LS1 tachometer not working on your LS1 swap or your Autometer tachometer.

What to do if your tachometer is not working on your Nissan 240SX?

If you have a LS1 in a Nissan 240SX, and your tachometer is still not working or intermittent, this how-to is for you. As with all our writeups and how-tos if you are not comfortable working on your own car or wiring your vehicle, take it to an experienced mechanic right away.

Why is my factory tach not working properly?

The most common problem for tachs is that they get disconnected from the distributor. Connect the factory tach and inspect the wire through the tach filter to the firewall. If you don’t find a problem there, your problem lies in the dash or the tach itself.

What to do if your tachometer is not working?

Close the hood, start the engine and test drive the vehicle make sure the tachometer is working. Dealing with electricity can be dangerous. If your tachometer is not wired properly, it can cause melting and burning. Amanda Harrell began her journey as writer in 2010.

Is the factory tach not working on a 1980 Z28?

Discussion in ‘ Troubleshooting & Diagnosis ‘ started by granitecowboy, Dec 16, 2011 . Hi…new here. Just bought a 1980 Z28. Love the car but the tach doesnt work. Is this a common problem on these cars? The guy I bought it from said he couldnt figure it out so he just put an aftermarket tach in it.

Can a boat owner run a boat without a tachometer?

A boat owner running a boat without a tachometer handicaps himself significantly. This small instrument dial, which details the revolutions per minute of the engine’s combustion, provides a critical window into the boat engine’s operation.

Where is the tach wire on my LS1?

The tach wire is found on the RED PCM connector for 1999-2002 vehicles and the GREEN PCM connector on 2003-2006 vehicles. Again, for all 97-2001 LS1 ECU’s with the 12200411 PCM part number most likely do not need this resistor. Select models from 2002 and above need this resistor before your tachometer can figure out what is going on.

Can a LS1 ECU be swapped for a tach?

If you haven’t had a chance to take a look at our How To Swap your LS1, make sure to check that out now and come on back. Most early LS1’s do not require this modification to make your tach work, but most LS2 and drive by wire ECU’s will require this fix.

What kind of tachometer does 1996 S14 LS2 use?

Our 1996 S14 is using a 2004 LS2 with drive by wire throttle control, and is wired into the F4 plug to make use of the factory tachometer. While this is our example and the ‘control’, we’ve also seen this issue arise from Autometer tachometers as well.

What should I do about my Tacho 4×4?

1 – new tacho from a petrol (like a 4.8 or 4.5) that can handle the rpm ur new engine can put out. this would require re-wiring the plugs at the back and making it talk to your wiring harness – not an easy thing to achieve.

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