astrostart 5224 tach on a 04 trailblazer
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=119029
Printed Date: April 28, 2024 at 12:18 AM
Topic: astrostart 5224 tach on a 04 trailblazer
Posted By: jrilla
Subject: astrostart 5224 tach on a 04 trailblazer
Date Posted: January 02, 2010 at 2:13 PM
I can't seem to get this unit to stay running. It runs forabout30 seconds then shuts down and tries again. The start fail code is tried three times to start unsuccessfully. I initially used auto tach learn a while back but then the car would only remote start when it was warm. The auto tach learned 4 cylinders, so I set it to 5-6 cylinders and that apparently worked for a while. Now the thing shuts down after 30 seconds. I tried reducing the idle spped to 600 and then to 500 rpm and this had no effect.
I am connected to the PCM on the drivers side of the engine. I don't recall now which wire.
Any help is greatly appreciated.
Replies:
Posted By: Velocity Motors
Date Posted: January 03, 2010 at 11:12 AM
WHITE at the BLUE plug on the PCM is the wire that you should have used. When you did the tach learn on this wire, did you get the confirmation from the flashing LED On the unit ?
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Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA
Posted By: jrilla
Date Posted: January 03, 2010 at 12:04 PM
Yes, the LED flashed rapidly and then when I hit the brake it flashed 4 times and a relay clicked 4 times. I didn't look very close at it when the guy stopped by but i am pretty sure I am connected to the white wire at the right connector (closest to the firewall) on the PCM that is attached to the drivers side of the motor.
I have never had trouble with Astrostart's tach settings until now. Typically, auto tach learn works fine and I have never adjusted the idle speed before.
Any other tach source to try other than an injector? Is the instrument cluster wire easily accessible?
Thanks
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