tach wire sensor question

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vanram

Member - Posts: 6

Joined: November 03, 2004

Location: Canada

Posted: November 09, 2004 at 7:11 PM / IP Logged

I am asking the the same question again with further info.My vehicle is a 2003 dodge ram with coil-on-plug ignition system,seperate coil for each cylinder mounted on top of the spark plug.Can I use the tan/red wire off one coil to feed the tach wire?,that wire would only "see" spark for one cylinder.

mo12v

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Joined: September 30, 2003

Location: Afghanistan

Posted: November 09, 2004 at 7:57 PM / IP Logged

Is this for Remote Start? Your RS should pick it up........You can also use the odd color wire on Fuel Injector......on a lot of RS units

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Velocity Motors

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Joined: March 08, 2002

Location: Manitoba, Canada

Posted: November 09, 2004 at 8:08 PM / IP Logged

Is this for the van or the truck ?

For the van: At the PCM (Powertrain Control Module) is on the firewall by the wiper motor.

gray

conn. 1, pin A7

For the truck :

NOT GREEN/ orange

ignition coil, coil pack, or injector

Jeff

Velocity Custom Home Theater

Mobile Audio/Video Specialist

Morden, Manitoba CANADA

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mo12v

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Posted: November 09, 2004 at 10:11 PM / IP Logged

Says it is truck........Double post from:

https://www.the12volt.com/installbay/forum_posts.asp?tid=42608&PN=1

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DDN3d

Member - Posts: 17

Joined: October 21, 2004

Posted: November 10, 2004 at 4:31 PM / IP Logged

I don't recommend using an injector. You will get unexpected results depending on which cylinder the vehicle is firing on.

'98 Dodge Durango SLT+

Velocity Motors

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Joined: March 08, 2002

Location: Manitoba, Canada

Posted: November 10, 2004 at 4:37 PM / IP Logged

DDN3d wrote:

I don't recommend using an injector. You will get unexpected results depending on which cylinder the vehicle is firing on.

I have done this to many vehicles that I could not access the tach wire for and none of the systems that I have installed into have given me problems. The vehicles are all functioning properly and have not heard back from any of the customer's about it. The thing is that the RS monitor's the singal from the wire and is ONLY an input ( not an output ). If you have had previous problems with another installation, then I would say it was not tach related if you got the signal from an injector, but I have heard of weirder things when it comes to vehicle ignition systems.

Jeff

Velocity Custom Home Theater

Mobile Audio/Video Specialist

Morden, Manitoba CANADA

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tach wire sensor question

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