tach for remote start
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=126255
Printed Date: May 21, 2024 at 6:22 AM
Topic: tach for remote start
Posted By: gregbbb
Subject: tach for remote start
Date Posted: February 22, 2011 at 2:10 AM
Can a fuel injector be a unreliable sorce of tach?
I just installed a viper 5901 in a 2010 ford edge and I used the uncomon non blue wire of the fuel injector
for my tach. The viper programed right up and all was good started great untill the next day the car would start
for a bit then shut off I tried to reprogram the tach learn and this time that wouldnt work so I switched to voltage sence
and the car started right up go figure?
Replies:
Posted By: Mike M2
Date Posted: February 22, 2011 at 6:32 AM
Tho it is a pulsed output, i have found they just don't always work(my own Dodge Caravan for example). It is the wire Directechs calls for...
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Mike M2
Tech Manager
CS Dealer Services
Posted By: howie ll
Date Posted: February 22, 2011 at 7:29 AM
Any one tried either crankshaft or camshaft positional sensor at the engine management, or the best place, tach at the gauges if it is wired i.e. non data.
Thank goodness BMW and Toyota/Lexus give you a wire on the diagnostic socket (OBD 11)
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Amateurs assume, don't test and have problems; pros test first. I am not a free install service.
Read the installation manual, do a search here or online for your vehicle wiring before posting.
Posted By: tedmond
Date Posted: February 23, 2011 at 9:05 AM
hey howie, i have used a crankshaft position sensor before. i got the compustar to program tach when the car was running, but it would never rs.
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Ted
2nd Year Tier 1 Medical School
Still installing as a hobby...pays for groceries
Compustar Expert
Posted By: howie ll
Date Posted: February 23, 2011 at 11:08 AM
I prefer the back of the tachometer except most modern cars have a chip for the instrument panel and tach is multiplexed with other functions, I've had slight grief with VW and Euro GM, their (very similar) systems don't seem to like injector pulse pick ups, they then get rough idling and pick-up and/or stalling.
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Amateurs assume, don't test and have problems; pros test first. I am not a free install service.
Read the installation manual, do a search here or online for your vehicle wiring before posting.
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