bmw e36 econometer boost gauge oil temp | AEM
3 posts / 0 new
Last post
Last seen: 2 years 10 months ago
Joined: 05/21/2015 - 20:01
bmw e36 econometer boost gauge oil temp



if you take a lsw pwm out and set it to 50% duty and create a 2 dimensional array (table) with x values of whatever (in my case battery voltage for testing) and y values of vehicle apeed you can use the econometer for whatever you want. I havent refined the scaling yet but somewhere around 1 pulse per 10 miles per hour results in the econometer displaying miles per hour in my case.

When im ready to refine the math I will scale the mpg gauge to tach at 1 pulse per 100 ish and boost pressure. boost pressure will add/remove pulses from the tach value to display actual boost pressure. 

keep in mind the econometer will not do anything until the gauge sees a few mph. its a hardwire problem with the tach thus you wont see boost at 0 mph.

this is for non can obd1 cars.

Last seen: 40 min 52 sec ago
Joined: 06/06/2014 - 09:31
Very cool.  Thanks for the

Very cool.  Thanks for the tip.

Last seen: 5 months 1 week ago
Joined: 06/05/2014 - 00:43
Wow this is a great idea. I

Wow this is a great idea. I've been looking for a way to display boost level but never thought of this before. Thanks!