2002 Nissan Sentra Tach problem

Ok, so I went to the coils (the top of the 1.8 engine) and used the wires supplied in the Directed wiring guide, and I can get a signal of 30.1 or 30.5 when the engine is running with my multimeter set to AC voltage.

Then when i rev the engine it doesn't go up at all. I then went to a fuel injector, and probed both the wires and got the same results with one of the wires. I get around 30.0 but when i rev the engine it stays at 30 doesnt go up.

Basically im using an autostart unit 2 way and cant get the tach to program.

Any hints? I decided not to use the tach cluster because there are so many wires in a small area and would rather goto the engine.

The injectors are just above the "nissan" sign and the coil packs should be just below the "nissan" sign correct? When I hook into the wire with the DMM and turn it to 200 AC, the voltmeter says 0.00 when the vehicle is off, when I start the vehicle up it goes to about 30.0 but doesn't go up with higher rpm's. Any help appreciated.

Directwire wrote:

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For tach go to any of the coils and use one of the following: BLACK/ red, purple, blue/red, or gray/red. Can also use blue/orange at the instrument cluster if vehicle is equipped with a tachometer.

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Ok guys still having problems with the Tach. Basically I got the unit to accept the tach signal, but now the remote start won't start because it says " Tach or vacuume line detected while attempting to start"

I checked the AC voltage on the tach wire, with the vehicle off and at the 200 setting it detects about 5. When the vehicle is running it is much higher.

I am using the first injector (far left if your facing the engine).