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2001 pontiac grand am gt tach signal

Home / the12volt's Install Bay / Vehicle Wiring Information & File Requests / 2001 pontiac grand am gt tach signal (Topic Closed Topic Closed)
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adtor22 
Member - Posts: 4
Member spacespace
Joined: January 19, 2008
Location: Wisconsin, United States
Posted: January 19, 2008 at 5:15 PM / IP Logged  
I have been trying to figure out where I can get a usable tach signal for a while now, and no luck.
I tested every white and purple white wire @ the ecm and no luck.
I also tested every wire connected to the distributor, also no luck.
Would anybody be able to tell me where to get the correct tach signal for a remote start unit on this 2001 pontiac grand am gt?
Locations, wire colors, and voltage readings to look for would be great.
Thanks in advance.
Velocity Motors 
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Joined: March 08, 2002
Location: Manitoba, Canada
Posted: January 19, 2008 at 5:45 PM / IP Logged  
The wire is actually Violet/White
Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA
adtor22 
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Member spacespace
Joined: January 19, 2008
Location: Wisconsin, United States
Posted: January 19, 2008 at 6:17 PM / IP Logged  
Correct
tedmond 
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Location: Ontario, Canada
Posted: January 19, 2008 at 6:21 PM / IP Logged  
i got violet/white as well. the voltage reading (AC) is a influx from 1 - 6 volts. Set your meter to AC red to pos of batt terminal and black to violet/white. start the car and look for a reading from 1 - 6 volts, and it changes when RPM is changing.
Velocity Motors 
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Joined: March 08, 2002
Location: Manitoba, Canada
Posted: January 19, 2008 at 7:18 PM / IP Logged  
The wire can be accessed at the large loom going into the engine from the driver's side kick panel. There are two VIOLET/WHITE wires one larger and one smaller gauge. Use the smaller gauge wire for your tach.
Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA
adtor22 
Member - Posts: 4
Member spacespace
Joined: January 19, 2008
Location: Wisconsin, United States
Posted: January 21, 2008 at 7:14 PM / IP Logged  

I have tested both of the violet/white wire, and and all of the white wire from the ecm or loom of small guaged wire going through the fire wall, some of them did measure ac voltage and did fluctuate with engine rpm but only in from about 3 tenths of a volt to about 8 tenth of a volt.  The signal is not recognized by the rs.

Is there any other location to get a good tach signal?

Velocity Motors 
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Joined: March 08, 2002
Location: Manitoba, Canada
Posted: January 21, 2008 at 9:50 PM / IP Logged  
On top of the engine there is a connector that has the VIOLET/WHITE wire.
Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA
adtor22 
Member - Posts: 4
Member spacespace
Joined: January 19, 2008
Location: Wisconsin, United States
Posted: January 28, 2008 at 5:31 PM / IP Logged  
Thanks a lot that worked out for me. Remote starter works great.

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