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diy mpg gauge

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skewbe diy mpg gauge 07-08-2007, 08:16 AM

MnFocus Came across a link ... 07-08-2007, 09:06 AM

skewbe Yah, that would be an obd... 07-08-2007, 09:32 AM

MnFocus Didn't SVOboy(I think it was... 07-08-2007, 09:43 AM

landspeed The cheapest way to do it... 07-08-2007, 11:22 AM

thisisntjared so how much do you think that... 07-08-2007, 05:43 PM

landspeed No idea, but, I know I could... 07-09-2007, 03:21 AM

sonyhome Looking at the Mnfocus linky,... 07-08-2007, 09:17 PM

skewbe Yah, the laptop->obd route is... 07-08-2007, 10:24 PM

landspeed I've thought of this and... 07-09-2007, 03:25 AM

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skewbe Yah, worth mentioning, don't... 07-09-2007, 05:07 AM

sonyhome Most people have laptops... 07-09-2007, 12:13 AM

skewbe Yah, it isn't that simple. ... 07-09-2007, 05:29 AM

jwxr7 I was just talking with the... 07-09-2007, 07:35 AM

skewbe a vss is easy to fabricate if... 07-09-2007, 08:10 AM

VXrunner I'd love to see what you come... 07-10-2007, 12:13 PM

sonyhome Let's recap, assuming you... 07-10-2007, 12:37 PM

skewbe that is incorrect, not all... 07-10-2007, 01:36 PM

Bill in Houston In a way, you're making it... 07-10-2007, 01:03 PM

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skewbe revisiting the analog stuff 07-10-2007, 07:38 PM

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skewbe more analog 07-10-2007, 09:04 PM

skewbe status 07-15-2007, 01:27 PM

thisisntjared i agree, as long as it is... 07-15-2007, 03:04 PM

MetroMPG Forgive my ignorance, but... 07-15-2007, 06:02 PM

skewbe A more hardcore embedded... 07-15-2007, 06:27 PM

skewbe Ooh yah, and a with a well... 07-15-2007, 06:50 PM

sonyhome LOL! So back to an OBD... 07-15-2007, 09:51 PM

skewbe I'm NOT currently planning on... 07-16-2007, 02:08 AM

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skewbe 1998 geo metro TBI injector... 07-20-2007, 11:28 PM

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skewbe Here's the actual recording 07-21-2007, 04:59 AM

sonyhome Pretty cool ... but I don't... 07-21-2007, 12:12 PM

skewbe the diodes are supposed to... 07-22-2007, 07:26 AM

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skewbe We have gui 07-22-2007, 12:40 AM

jtiner I am new to this forum and I... 07-23-2008, 09:22 PM

sonyhome [QUOTE=jtiner;112351] 1.... 07-23-2008, 10:15 PM

jtiner Thanks for the advise. Are... 07-24-2008, 08:37 AM

thisisntjared thanks for the open source... 07-22-2007, 01:55 PM

MetroMPG I am duly, duly impressed! ... 07-22-2007, 05:37 PM

skewbe MPG cruise control 07-23-2007, 05:29 PM

MetroMPG Inspired. Creativity is cool. 07-23-2007, 05:40 PM

skewbe Heh, a couple more goodies... 07-23-2007, 07:59 PM

MetroMPG Ooo! I like the audio signal... 07-24-2007, 05:04 AM

psyshack Boy there are some smart... 07-24-2007, 05:18 AM

skewbe Actually, I was thinking of a... 07-24-2007, 10:05 AM

cfg83 skewbe - Ha ha! I was... 07-24-2007, 11:06 AM

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skewbe I got a request to provide a... 07-24-2007, 07:01 PM

philmcneal the power of open source, now... 07-24-2007, 10:06 PM

skewbe Not obd, not for newbies, not... 07-25-2007, 04:05 AM

sonyhome Hypermiling User Interface... 07-25-2007, 04:22 PM

sonyhome OK a few other things: -... 07-25-2007, 04:26 PM

skewbe re buckets: Sure, you can do... 07-25-2007, 05:12 PM

sonyhome Agreed :) I was just... 07-25-2007, 05:15 PM

sonyhome Looking at your "diode clamp"... 07-25-2007, 05:35 PM

mpmetro could you take a picture of... 07-26-2007, 10:52 AM

txe5502 Is there any way to use this... 07-26-2007, 06:07 PM

skewbe Are you sure it is only mono?... 07-26-2007, 06:24 PM

itjstagame This is really awesome,... 07-28-2007, 07:18 AM

itjstagame Actually thinking a bit more... 07-28-2007, 07:33 AM

sonyhome Now that you mention it, you... 07-28-2007, 10:43 AM

skewbe sonyhome, maybe a smaller... 07-28-2007, 07:06 PM

itjstagame Ah, very good point. Yeah,... 07-29-2007, 06:10 AM

itjstagame Actually I guess the only... 07-29-2007, 10:44 AM

caprice I'm lost here, but excited... 08-04-2007, 03:10 AM

skewbe There's a couple ways to... 08-04-2007, 06:29 AM

GasSavers_Doc Oxy sensor reading 09-12-2007, 04:51 AM

mpmetro Here are some pics of my... 08-04-2007, 06:48 AM

cfg83 mpmetro - Plastic box... 08-04-2007, 09:57 PM

itjstagame Ok, that's what I understood... 08-06-2007, 06:09 AM

skewbe looks right, you might want... 08-04-2007, 07:16 AM

sonyhome skewbe: I'd love to code... 08-04-2007, 09:51 PM

mpmetro i know...:o i cant solder. 08-05-2007, 01:27 PM

itjstagame I've already done some of the... 08-06-2007, 06:04 AM

skewbe sonyhome: Yes on all accounts... 08-06-2007, 09:35 PM

itjstagame Wouldn't you need to pull... 08-12-2007, 01:37 PM

itjstagame Ok, so you're on the same leg... 08-07-2007, 12:00 PM

cfg83 skewbe - Have you thought... 08-07-2007, 01:45 PM

itjstagame This should work fine on... 08-12-2007, 01:35 PM

skewbe I had to make compromises... 08-12-2007, 01:49 PM

sonyhome Think of the diode as an open... 08-13-2007, 09:05 AM

Bill in Houston A diode is also a "one-way... 08-13-2007, 09:25 AM

mpmetro yay... I just connected mine... 08-13-2007, 05:25 PM

skewbe Way Cool!! Try this: locate... 08-13-2007, 06:11 PM

mpmetro I have also noticed that now... 08-14-2007, 11:27 AM

Silveredwings Sounds like input loading by... 08-14-2007, 11:59 AM

skewbe or it may need to be isolated... 08-15-2007, 04:11 AM

skewbe Also, are you auto or stick? ... 08-15-2007, 09:06 PM

mpmetro my 91 is a 5spd manual. But I... 08-18-2007, 09:42 PM

sonyhome Wouldn't a CEL code risk... 08-20-2007, 02:02 AM

skewbe Thanks Doc, I don't know... 09-12-2007, 04:12 PM

ami8i Hello skewbe, thank you very... 12-09-2007, 11:20 PM

skewbe wow, 16mb, I did not... 12-18-2007, 05:06 PM

FritzR hey skewbe if the purpose... 02-01-2008, 11:29 AM

rsxer63 Does anyone know if this... 06-24-2008, 09:10 AM

sonyhome Try to load the applet on it,... 06-24-2008, 10:05 AM

sonyhome Don't expect to have it right... 07-24-2008, 04:23 PM

jim-frank I've recently gotten this to... 08-26-2008, 08:01 AM

curjones I'm kinda lost here. May... 09-02-2008, 04:46 AM

theholycow The idea is pretty cool: You... 09-02-2008, 05:12 AM

curjones So you buy the program,... 09-02-2008, 06:10 AM

theholycow That's a good question about... 09-02-2008, 07:12 AM

curjones Was the name Audacity. That... 09-02-2008, 07:23 PM

curjones This site has good inf0 09-02-2008, 08:15 PM

theholycow Audacity is a great audio... 09-03-2008, 04:36 AM

sonyhome I'm too lazy to search though... 09-03-2008, 08:19 AM

theholycow Oh....it's this thread!... 09-03-2008, 09:00 AM

GasSavers_Lurch ummm, is this device you... 09-06-2008, 10:30 AM

itjstagame How can you say it's complex?... 09-12-2008, 10:54 PM

itjstagame Wow this brings back... 09-12-2008, 08:11 AM

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itjstagame Man, why did I take a year to... 09-12-2008, 10:52 PM

EvilToothpaste You probably should be... 02-25-2009, 11:21 AM

sonyhome I'd be interrested in your... 02-25-2009, 11:44 AM

EvilToothpaste I'll draw a schematic... 02-25-2009, 03:57 PM

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EvilToothpaste Java program 02-26-2009, 06:19 AM

itjstagame Ha, I was adding RPMs are 2 *... 09-14-2008, 02:48 PM

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itjstagame Ok, another question in case... 09-15-2008, 05:57 AM

itjstagame Well hooked into the VSS and... 09-18-2008, 05:52 AM

sonyhome Aahh... I still have to do... 10-19-2008, 12:20 AM

theholycow I think most ECUs are on the... 10-19-2008, 04:05 AM

sonyhome What? You don't have your... 10-19-2008, 08:50 PM

itjstagame Sweet updates! Well I still... 10-20-2008, 12:29 PM

sonyhome LOL! Yeah, no way you can be... 10-20-2008, 01:47 PM

theholycow Yes, but a cycle requires two... 10-20-2008, 02:13 PM

itjstagame Yes, when I say cycle I mean... 10-21-2008, 05:27 AM

theholycow Yeah, that discussion was a... 10-21-2008, 06:20 AM

itjstagame Good point, I'm sure we could... 10-21-2008, 07:05 AM

Energy Recruitment diy mpg gauge 11-01-2008, 09:54 AM

Jay2TheRescue Welcome to the site. As I... 11-01-2008, 10:03 AM

Billman2002 Software 11-09-2008, 02:45 PM

theholycow There's many free programs... 11-10-2008, 04:47 AM

Billman2002 thanks, however I need... 11-10-2008, 05:33 AM

theholycow Oh, now I think I understand... 11-10-2008, 05:41 AM

Billman2002 Yup it sucks. I dont... 11-10-2008, 05:53 AM

Dalez0r Arg! Trying to do this on my... 11-29-2008, 02:03 PM

bnapalm Hello, everyone! Although I... 02-11-2009, 03:27 PM

sonyhome There was a sound file... 02-11-2009, 03:44 PM

bnapalm Thank you for the quick... 02-11-2009, 04:07 PM

EvilToothpaste Hello people. I too have... 02-25-2009, 11:04 AM

bnapalm Hello, EvilToothpaste! Nice... 02-26-2009, 10:00 AM

theholycow What model of laptop comes... 02-26-2009, 10:16 AM

bnapalm theholycow: it does have... 02-26-2009, 12:44 PM

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EvilToothpaste Bnapalm, 02-26-2009, 03:30 PM

bnapalm OK, I sent my e-mail address... 02-26-2009, 10:53 PM

itjstagame Cool people are doing stuff!... 04-13-2009, 11:11 AM

EvilToothpaste I will post what my values... 04-14-2009, 03:12 PM

itjstagame Sorry I disappeared there. ... 05-19-2009, 12:21 PM

EvilToothpaste Well, I wish I could help... 06-01-2009, 07:04 AM

itjstagame Gallons is total gallons... 06-10-2009, 10:29 AM

itjstagame Could your issue be channel... 06-23-2009, 01:09 PM

itjstagame Ok, so I was getting a lot of... 06-25-2009, 02:41 PM

dkjones96 Okay, so I've been doing a... 07-10-2009, 11:59 AM

PaperClip

masster Hi I am new to this forum, I... 12-19-2012, 08:02 PM

Jay2TheRescue If your car has a carburetor,... 12-20-2012, 03:11 AM

masster I know my carburetor and many... 12-20-2012, 05:28 AM

Jay2TheRescue I guess. I've just never... 12-20-2012, 06:05 AM

masster Please have a look in here:... 12-20-2012, 07:21 AM

Jay2TheRescue It looks pretty good, but as... 12-20-2012, 07:29 AM

theholycow I'm not sure I understand... 12-20-2012, 01:13 PM

masster I guess I wasn't explicit... 12-20-2012, 07:44 AM

Jay2TheRescue It appears to be something... 12-20-2012, 08:29 AM

masster Not to my knowledge, because... 12-20-2012, 11:41 AM

masster I'm thinking of dirty... 12-20-2012, 03:16 PM

theholycow Ah, good point. I suppose... 12-20-2012, 04:33 PM

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02-25-2009, 11:21 AM

#11

EvilToothpaste

Registered Member

Join Date: Jun 2008

Posts: 7

Quote:

Originally Posted by itjstagame

View Post

I was worried since the only diodes I could find at Rad Shack said 50v, but they clamp it to .7V.

You probably should be worried about that 50V because one of the diodes is reverse-biased and injectors create huge spikes in excess of 50V. Usually a diode is rated by its maximum reverse voltage before breakdown.

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