P/N 30-4900 Wideband Failsafe Gauge install in 2000 Chevy Camaro ls1 V8 | AEM
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P/N 30-4900 Wideband Failsafe Gauge install in 2000 Chevy Camaro ls1 V8

having problems figuring out a few things on the install of this gauge...

1... where is the best place to install the failsafe wire (BLUE)from gauge to car in order to shut down vehicle to avoid blowing engine?

2.... where to tie the (GRAY) wire into vehile so you can dim gauge with the dimmer in the vehicle

3...  Is the best place to tie into vehile for the rpm source the tach wire?

heres a pinout on my car to help.....    any help appriciated...


Last seen: 15 hours 46 min ago
Joined: 06/06/2014 - 09:31
It's probably not very

It's probably not very advisable to completely shut down an engine when a lean condition occurs as you run the risk of not being able to control your vehicle or being run into by other vehicles if on a track, etc.  A safer alternative would probably be to trigger a limiter or boost cut function or even a warning light.  How the failsafe output function is utilized is up to the end user to decide and will depend on the application they're working with.  Some cars have an input that will force trigger limp mode.  Your car may or many not have this ability but it's up to you to determine this.

The gray wire should tap onto the wire the has a variable 0-12v or 12-0v voltage signal when adjusting the dimmer on your dash.  You'll need to get a voltmeter to see which wire this is.

According to the pin out you linked to, pin 10 is the tach signal wire.