528t timer

Printed From: the12volt.com
Forum Name: Relays
Forum Discription: Relay Diagrams, SPDT Relays, SPST Relays, DPDT Relays, Latching Relays, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=99418
Printed Date: June 22, 2025 at 10:39 PM

Topic: 528t timer

Posted By: xavier213
Subject: 528t timer
Date Posted: November 27, 2007 at 11:26 PM

i
Ok this is what I am thinking of doing and would like to know how to wire it up.. and if it can even be done…

I would like to use the 528t to turn off my fuel pump IF I do not Push a MOMENTARY push button switch… if I do I would like the MOMENTARY push button switch to bypass the 528t and keep the fuel pulp on.. so if someone was to take my car and did not know about the MOMENTARY push button the car would just stop running

Thanks for your help

Replies:

Posted By: xavier213
Date Posted: November 27, 2007 at 11:52 PM

sorry let me add to this.. i would also like it to come on if me alarm was removed or power cut to the alarm

Posted By: hotwaterwizard
Date Posted: November 30, 2007 at 8:05 AM

Why a timer ?

A relay could do the job just fine.

Use a starter Interrupt on the fuel pump instead of the starter. Use the power wire from the alarm to power the relay.

If the power to the alarm is cut the fuel pump never gets power.

https://www.the12volt.com/relays/page2.asp#sk2

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John DeRosa (Hotwaterwizard)
Stockton California
When in doubt, try it out !

Posted By: xavier213
Date Posted: November 30, 2007 at 10:58 AM

yeah the timer was just a idea... i am going to use the passive starter kill with the momentary switch to cut the fuel pump.... if i may ask if i would like to hookit to the alarm how would you suggest i hook it up...

thanks

Posted By: hotwaterwizard
Date Posted: December 01, 2007 at 12:34 AM

posted_image

Hook the grounds to the same Ground wire as Alarm is hooked to. If someone cuts the Ground wire off of the alarm the car will not start.

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John DeRosa (Hotwaterwizard)
Stockton California
When in doubt, try it out !

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