2000 Cavalier 2.2 Litre 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=20850
Printed Date: July 13, 2025 at 9:34 AM

Topic: 2000 Cavalier 2.2 Litre Tach Wire

Posted By: frontinac
Subject: 2000 Cavalier 2.2 Litre Tach Wire
Date Posted: November 01, 2003 at 3:10 PM

Hey Guys....Im sure someone must be able to help me out here.... ATTEMPTING to install one of those "cheapy" PROSTART car starters in a 2000 Cavalier with the 2.2. APPARENTLY the ignition only creates ONE pulse per revolution as opposed to the usual 2 on a conventional ignition in a 4 banger. Does ANYONE have any idea where to put the "tach" wire? The Negative side of the coil is a no go and someone had suggested a "tach adapter" a la Auto Meter etc.....Would an injector pulse work? Any help would be greatly appreciated! Thanks guys

Tim

Replies:

Posted By: Velocity Motors
Date Posted: November 01, 2003 at 4:37 PM

Use the injector for the tach signal is the ProStart tach input is not sensitive enough to pick up the normal tach wire output.

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

Posted By: frontinac
Date Posted: November 01, 2003 at 5:34 PM

Thank you kindly Jeff! Ill try that out....that would be the odd colored wire ill assume...Ahh well..sparks and fuel...a beautiful combo...LOL

Tim

Posted By: Velocity Motors
Date Posted: November 01, 2003 at 5:51 PM

Yes, use the uncommon colored one and doesn't matter which injector you use.

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

Posted By: frontinac
Date Posted: November 01, 2003 at 7:41 PM

Jeff? HEEEEELLLP! Okee heres what we got so far...tried injector #4 Two wires coming off the injector plug...Neither one works...Now what? Is there a 3rd wire somewhere Im missing? *beats head on desk*

Thanks again

Tim

Posted By: Velocity Motors
Date Posted: November 01, 2003 at 8:08 PM

So the Prostart isn't learning the tach at all ?? That is very weird. Make sure that you are going through the steps properly & one more thing............... Prostart's are infamous for not programming the remote's and the tach signal posted_image

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

Posted By: frontinac
Date Posted: November 01, 2003 at 8:50 PM

Well heeeere we go again....Did the programming thing now about 15 times...lol FINALLLY got something..but not much so i wont hold my breath..The car does in fact start..for about 2 seconds...then shuts off...Im not sure what i did different other than keep on pluggin at programming that thing ..... Well Jeff....any ideas? Obviously you know more about these things than I do...and by the way..thanks for you help so far!

Tim

Posted By: Velocity Motors
Date Posted: November 01, 2003 at 9:30 PM

Unfortunately, if the car starts and shut off again within a couple of seconds, the tach wire is not programmed properly or you have a weak tach signal. Did you try going to the tach wire at all ?

TACHOMETER PURPLE / white in the engine harness next to the battery, below the radiator hose, just above the transaxle.

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

Posted By: frontinac
Date Posted: November 01, 2003 at 10:19 PM

Okee dokie , thanks ill give that a try..The signal at the injector seemed quiet low...like .4 volts AC while running...Tach wire is tomorrows project, lol! Thanks again for all the help! If you happen to have MSN messanger add me to your list . Frontinac@Hotmail.Com

Thanks!

Tim