2003 Accord EX Tachometer Wire?

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skyh00k

Member - Posts: 7

Joined: August 01, 2006

Posted: August 02, 2006 at 9:32 PM / IP Logged

It's supposed to be a blue/red or blue wire in the gray connector, pin 23 at the ECM but there's no wire at that spot. I tested all the rest in that connector but can't locate one that does the 1-6 volts AC.

Anyone have ideas? I'd really rather not go to the engine compartment to locate a tach wire. Thanks.

profuse007

Gold - Posts: 2,015

Joined: October 20, 2002

Location: Texas, United States

Posted: August 02, 2006 at 10:01 PM / IP Logged

that info above is for V6.

i found it easier to run tach wire out w/ siren

Houston,TX

"The two most common elements in the universe are H+ and stupidity" (Ellison).

skyh00k

Member - Posts: 7

Joined: August 01, 2006

Posted: August 02, 2006 at 10:04 PM / IP Logged

Forgot to mention it's a V6.

This is for a Compustar remote start installation.

"run tack wire out w/ siren" - what does that mean exactly?

swamprat323

Gold - Posts: 1,335

Joined: September 22, 2002

Location: Florida, United States

Posted: August 02, 2006 at 10:25 PM / IP Logged

run the tach wire with the siren wire is what he is talkign about.

skyh00k

Member - Posts: 7

Joined: August 01, 2006

Posted: August 03, 2006 at 7:45 AM / IP Logged

At this point I'm open to pulling the signal through the firewall. So if you have any information about where to pull the signal from either inside or out I would greatly appreciate it.

mdbetts

Member - Posts: 10

Joined: June 12, 2006

Location: United States

Posted: August 03, 2006 at 10:17 AM / IP Logged

There is a test connector under the hood, by the battery or the drivers shock tower. It has a black plastic cap with a single blue wire in it. There is usually blue tape holding it to a harness under the hood. It is there for the V-6 or, hope this helps.

cant hold me!

JWorm

Platinum - Posts: 2,208

Joined: December 11, 2002

Location: New Hampshire, United States

Posted: August 03, 2006 at 5:50 PM / IP Logged

mdbetts wrote:

There is no test connector under the hood on 2003 and up.

I've always got the tach wire at the ECU on that car. The half dozen or so I have done were blue. I don't recall ever seeing a blue/red one. I don't think it varies with engine idle either. It will meter around 2-6 volts AC.

skyh00k

Member - Posts: 7

Joined: August 01, 2006

Posted: August 03, 2006 at 7:10 PM / IP Logged

I've seen a couple that measured that low (most were either 0v or ~30v AC) but none varied much at all with the RPM's. Shouldn't I see a variance when racing the motor?

honorabledog

Member - Posts: 23

Joined: June 19, 2006

Location: United States

Posted: August 04, 2006 at 8:37 AM / IP Logged

I just did a 4cylinder and it was the blue/ red. it was the easiest route. Remove the corner plastic trim on the console where it meets the dash(both sides) and run the wire under the dash through the console to the passenger side. If your wire is not blue it should still be the 23 pin.

skyh00k

Member - Posts: 7

Joined: August 01, 2006

Posted: August 05, 2006 at 11:35 AM / IP Logged

For the record, it was a RED / blue wire, pin 30, on the gray connector.

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