SuperECM
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Senior Member
Joined: Aug 2001
Posts: 563
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From: Friendswood(Houston),Texas,USA
SuperECM
It seems like everyone wants something different at different times, performance, gas mileage, emissions testing. Why not have it all at once? If there were a way to select a PROM from an LED, or LCD? 
, everyone would be happy right?!?! So why not create it. My system would "adapt" to the current ECM in your car by having multiple PROMs to use whenever wanted. A Central Selection Unit(CSU) would have a LED, or LCD? , display to inform the user of whats going on, and would use 3 buttons(enter, move left, move right) to let the user make selections. When the user selects performance, for example, the CSU will send a signal to a "relay" to let information flow only to and from the selected PROM. The relay will send that info to the ECM through an adapter cable. After a second or so has passed from making the selection the CSU will allow the engine to start by ungrounding the starter interupt. The LED, or LCD , will also "tap" into the serial data which allows it to display diognostic info thru the display. The CSU would also have a 9 pin com port, for laptop access, and software to let the user program the PROM chips and view serial data. Why has no one, to my knowledge, thought of this system before, I don't know?!¿
, everyone would be happy right?!?! So why not create it. My system would "adapt" to the current ECM in your car by having multiple PROMs to use whenever wanted. A Central Selection Unit(CSU) would have a LED, or LCD? , display to inform the user of whats going on, and would use 3 buttons(enter, move left, move right) to let the user make selections. When the user selects performance, for example, the CSU will send a signal to a "relay" to let information flow only to and from the selected PROM. The relay will send that info to the ECM through an adapter cable. After a second or so has passed from making the selection the CSU will allow the engine to start by ungrounding the starter interupt. The LED, or LCD , will also "tap" into the serial data which allows it to display diognostic info thru the display. The CSU would also have a 9 pin com port, for laptop access, and software to let the user program the PROM chips and view serial data. Why has no one, to my knowledge, thought of this system before, I don't know?!¿ 
Supreme Member
Joined: Jun 2000
Posts: 7,554
Likes: 1
From: In reality
Car: An Ol Buick
Engine: Vsick
Transmission: Janis Tranny Yank Converter
<font face="Verdana, Arial" size="2">Originally posted by 92RSB4C:
It seems like everyone wants something different at different times, performance, gas mileage, emissions testing. Why not have it all at once? If there were a way to select a PROM from an LED, or LCD? , everyone would be happy right?!?! So why not create it. My system would "adapt" to the current ECM in your car by having multiple PROMs to use whenever wanted. A Central Selection Unit(CSU) would have a LED, or LCD? , display to inform the user of whats going on, and would use 3 buttons(enter, move left, move right) to let the user make selections. When the user selects performance, for example, the CSU will send a signal to a "relay" to let information flow only to and from the selected PROM. The relay will send that info to the ECM through an adapter cable. After a second or so has passed from making the selection the CSU will allow the engine to start by ungrounding the starter interupt. The LED, or LCD , will also "tap" into the serial data which allows it to display diognostic info thru the display. The CSU would also have a 9 pin com port, for laptop access, and software to let the user program the PROM chips and view serial data. Why has no one, to my knowledge, thought of this system before, I don't know?!¿</font>
It seems like everyone wants something different at different times, performance, gas mileage, emissions testing. Why not have it all at once? If there were a way to select a PROM from an LED, or LCD?
, everyone would be happy right?!?! So why not create it. My system would "adapt" to the current ECM in your car by having multiple PROMs to use whenever wanted. A Central Selection Unit(CSU) would have a LED, or LCD? , display to inform the user of whats going on, and would use 3 buttons(enter, move left, move right) to let the user make selections. When the user selects performance, for example, the CSU will send a signal to a "relay" to let information flow only to and from the selected PROM. The relay will send that info to the ECM through an adapter cable. After a second or so has passed from making the selection the CSU will allow the engine to start by ungrounding the starter interupt. The LED, or LCD , will also "tap" into the serial data which allows it to display diognostic info thru the display. The CSU would also have a 9 pin com port, for laptop access, and software to let the user program the PROM chips and view serial data. Why has no one, to my knowledge, thought of this system before, I don't know?!¿</font>
Junior Member
Joined: Jun 2000
Posts: 82
Likes: 0
I actually have something very similar to this on my car. Its somewhat simpler than what you are saying, but much cheaper as well. I have an 8 position chip in my car. it has some wires connected to it that has a "thumbwheel." position 0 is a no start anti theft, position 1 is vallet mode, 2-7 are performance modes. 2 starts with 12 pounds of boost, and every position after that increments the boost +2 including timing and fuel changes.
This setup is of course directed towards a turbo car. I can see how some parts could be useful for your setups. Just seems that a chip could be better than an entire ecm setup. ill stop talking now
This setup is of course directed towards a turbo car. I can see how some parts could be useful for your setups. Just seems that a chip could be better than an entire ecm setup. ill stop talking now
Senior Member
Joined: Sep 2001
Posts: 564
Likes: 2
From: Cathlamet, Washington
Car: 87 Formula
Engine: 327
Transmission: 700r4
Axle/Gears: 3.23
I've seen something similar advertised for trucks at one time. It held 3 different chips of your selection. Usually the stock chip, towing chip, and performace chip. Then u just turned the dial to whichever you wished to use.
