Another Q? How many amps are we dealing with?? Kind of important when trying to figure out the voltage loss over a given amount of wire??

Also (Just a thought that popped into my head) can we use the APPS adjustment that BigBlue posted a while back to adjust the APPS for the voltage loss it will encounter using a longer length of wire?? Maybe not Just an idea

 

Also what's the wire size going to the APPS?? That would be a start as that could give me the max amps that it could carry...

 

We're starting to venture back into the background that I came from when I first got into this discussion. Using a trimmer, cutting APPS wires, more relays, etc.

I think you're starting to make this more complicated than it has to be. I don't mean to be offensive, but why not use the relay? It'll keep from having to go through all this trouble.

You still get to use an on/off switch, and you no longer have to worry about wire lengths into the cab.

 

I have already made one with a relay but I have this nagging itch that it can be done even easier, and cheaper (like $9 makes a huge difference LOL).

 

I was also thinking the same thing. That an APPS reset would eliminate the possibility of any possible problems.

 

I hear ya. I just don't want to simplify it to the point that it causes more problems.

 

I think it would provided you have enough adjustment...

I have already made two of these mostly per the instructions given. They work great on the test bench Just want to know what to expect before I go out in the cold to install!

If the voltage drop from the extra wire can be made up for using the APPS adjustment then I think this will work great. Otherwise this will have to be mounted in the engine compartment to minimise the voltage loss

 

Agreed. That is why I will test it for the others Given that one member installed his "relay box" in the cab and the extra wire did not provide ill effects for him I am not too worried that it won't work as advertised.

I was hoping to get some time to do it today but this afternoon is looking pretty busy and tonight I have some plans so it might have to wait unitl tomorrow morning.

 

Brian I don't know if the adjustment on the APPS will help in anyway or not. I know I didn't have enough adjustment in mine to get it set correctly nor did any of my friends. I got it very close but not exact.

Also, relays are cheap and if it'll keep the strain off the APPS sensor then might as well use one. It's not like it's a whole lot more wire. I just need to know where to put the relay in at.

Oh yeah, don't try and use the smaller box for this project. While it might look better it's by far a much bigger pain in the rear to stuff everything together in there.

 

Ya I will have to check where mine is at... I'm going to try it with what I have built now and see what happens (When I get home to a heated shop that is)...

What is this about the other relays to use?? Does it keep the system that I built already and just adds a relay towards the APPS?? Or is this a completely different system idea??

 

I think that's what they are talking about is adding a relay to the system to make the length of wires from the APPS sensor as short as possible so it doesn't screw with the voltage. Not sure though.

 

How about this.

Keep the POT under the hood in a project box. Run only the supply (+/-) wires to switch in the cab and then back to the POT. This way the signal wire to the POT is still as short as possible for the possible potential issues with added resistance to the signal circuit.

Just thinking out loud here

 

Would definitley work I just like having the idle adjustability in-cab... I'll do some testing tomorrow evening when I can be warm

 

Me too. That was the whole reason I want it in the cab and if you put it in the cab I see no reason for a relay.

Just throwing out some other ideas

 

Y'all let us know how it works out. I don't think the speculating we're doing is gonna get is anywhere but confused. LOL.

I've got a TDR meeting this weekend, and it'll burn all my time away from the house, so I won't have a chance to work on mine till prolly next weekend.

I sure am excited about this though. Once again, thanks to everyone who's contributed to figuring this out.