Tach and RPM?

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equate

Copper - Posts: 118

Joined: March 07, 2005

Posted: November 18, 2005 at 8:00 PM / IP Logged

I am thinking if use injector, it might lost some features of the alarm. For example, 2000RPM lock door, idel 2500 RPM engine stop, etc....

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equate

Copper - Posts: 118

Joined: March 07, 2005

Posted: November 19, 2005 at 1:20 AM / IP Logged

I use test light to test the TACH signal. The red LED is staying on. The green LED is flashing. How come it does? Does it mean the positive voltage is alway on this wire, and the negative is a pulse signal? How can one wire has the negative and positive signal together???? It confuses me very much

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KarTuneMan

Platinum - Posts: 7,056

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Joined: December 14, 2004

Location: Isle Of Man

Posted: November 19, 2005 at 1:52 AM / IP Logged

all we need is year make and model.........OR should I say all I need is.............

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ringojam

Copper - Posts: 215

Joined: June 10, 2003

Location: Manitoba, Jamaica

Posted: November 19, 2005 at 10:33 AM / IP Logged

Dont use a test light to test for tac signal! use dvm only Tach and RPM? - Page 3 - Last Post -- posted image.

Jamaica home of the worlds fastest man.

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Tach and RPM?

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