Hondata

I don't have this problem -- but I have seen some people asking in the past about using an ecu say from a k20a3 on a k20a2 for kpro purposes.. whatever. Point being: no reverse lockout output.

I was thinking to myself -- this is a simple thing to fix with a few components from radioshack... why hasn't somone made something to address it... OR other uses. A device that takes a pulsed input to switch a relay on at an adjustable (via pots) pulse rate. You could simply splice into the speed sensor and when you hit a certian speed... simply raise the lockout voltage via the relay.

This is a pretty simple device to build from parts at your local radio shack -- like a transistor and a main relay... and some method of adjustable capacitor charging ... like a fixed size cap and adjustable pot.

Does anyone sell a device like this as a standard component you can buy at a store / order online? It seems like a damned handy device for many applications... for instance -- those who wanted to arm systems based on tach or vss or something .. pick your application. Sounds to useful to not exist.

Another one that would be neat is a relay that fired in a given voltage range on input... like high and low adjustable 2 or 3 output (nominal, high, low).

Thoughts?

Wayne

I tried to build this project yesterday and ended up getting a box of pnp transistors instead of npn. GRR.. and radioshack had closed before I realized it. I got all the way to testing and didn't get the desired behavior in the least.... then noticed I had got the wrong transistors.

In any case -- the actual parts are relay, cap, transistor, diode. The general idea is to amplify the vss signal with the transistor to a signal that closes the relay and has a cap in line that keeps the relay closed if there is any sort of a pulse from the vss (and hence, higher voltage collector -> emitter) line.

Interested in thoughts from anyone with some more analog experience than me -- I'm way rusty .

Wayne

Theoretically, wouldn't it be a hell of a lot easier just to use one of the Nitrous Outputs set to have the input always on, the VSS conditions set to a maximum of 1 mph, minimum 0, and no fuel or ignition changes? It annoys me that they are called nitrous outputs, I use nitrous outputs to control things from IAB, to 12 volt coffee makers. :)

Screw the circuit building, just add a relay to one of the "nitrous outputs" and be done with it. Unless of course, you are using both outputs already for your low speed neon lighting system, and your high speed james bond style smoke screen system..

Thoughts, this was all theoretical, but why wouldn't it work? You can send your donations to Matt's mom, her a/c isnt working properly. :)

I found it to be easier by getting a type s ecu