2003 Pontiac Sunfire Tach wire

Printed From: the12volt.com
Forum Name: Car Security and Convenience
Forum Discription: Car Alarms, Keyless Entries, Remote Starters, Immobilizer Bypasses, Sensors, Door Locks, Window Modules, Heated Mirrors, Heated Seats, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=28086
Printed Date: June 01, 2024 at 10:01 AM

Topic: 2003 Pontiac Sunfire Tach wire

Posted By: ammarsunfire
Subject: 2003 Pontiac Sunfire Tach wire
Date Posted: March 09, 2004 at 9:34 PM

I have a 2003 Pontiac Sunfire I can't seem to find the correct tach wire for my viper remote starter. I know it's the violet/white wire in between the transaxle and rad hose but it dosn't work. I tried taking it from inside but no luck. I tried almost every violet wire there is and nothing works. Then I tried taking a signal from the fuel injecters but got no luck with that. If theres anyone out there who can help me I'd greatly apprieate.

THANKS FOR ANY HELP

Replies:

Posted By: JakeJ
Date Posted: March 09, 2004 at 11:50 PM

I am not familiar enough with that vehicle to tell you were to try next. Crime Stopper makes a "tach signal generator" that works very well. I have used it on vehicles that I could not find a valid tach source. It mounts to the alternator.

-------------
Wyoming 12volt Enthusiast

Posted By: mobile1
Date Posted: March 10, 2004 at 12:00 AM

The viper can be set to read voltage. If worse comes to worse you can use that. My info says its in the ignition harnes next to the battery

Posted By: Velocity Motors
Date Posted: March 10, 2004 at 12:06 AM

Which wire from the injector did you use. The injector wires work 100 % of the time with the newer remote start systems. You have to use the uncommon colored wire and you have to solder the connection to the tach wire on the remote starter unit.

-------------
Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA

Posted By: Javelin3o4
Date Posted: March 10, 2004 at 1:44 AM

dei direct wire says the same thing ,PONTIAC, SUNFIRE, 2003, Tachometer

The engine harness is found next to the battery, below the radiator hose, just above the transaxle.

Posted By: jrilla
Date Posted: March 10, 2004 at 10:33 AM

What engine do you have? I may have a picture.

-------------
J Rilla

Owner/Installer

Posted By: cbag1
Date Posted: March 10, 2004 at 4:24 PM

check with DMM if you get 1 - 6 acv on that PURPLE / white. make it sure you're in tach mode just curious.

Some new vehicles use less than 12 volts in thier ignition system. The unit may have trouble learning the tach signal in this vehicle. Check your unit if you have a jumper for tach threshold, if so, you may turn this one on.

hope it help.

Posted By: ammarsunfire
Date Posted: March 10, 2004 at 5:41 PM

I have the 2.2L ECOTECH engine. I found a wire that was below the 1 volt mark but flucuates between 0.3 and 1.15 depending on engine speed, I connected that (it was purple) but my viper system said it was too weak of a signal.

Posted By: extreme1
Date Posted: March 10, 2004 at 11:55 PM

white wire in connecter entering valve cover on driver side of engine.

Posted By: sroth140
Date Posted: March 11, 2004 at 2:48 AM

extreme1 wrote:

white wire in connecter entering valve cover on driver side of engine.

yup, its in the wires to the coil pack. i think the PURPLE / white there will work too. there are two different harnesses side by side where the spark plugs are, test for it there. i think im using the wite on my cavalier.

-------------
MECP certified installer