SpoonfedCivic

Okay recently I bought a virgin P28 auto ECU for $20 from a friend. I will be chipping this ECU for my build project. But before I chip it and get a tune, I want to convert it to a manual ECU. Which is actually a really easy process, the problem I'm having is finding a 0 Ohm resistor. I've tried Radioshack, and searched eBay, and searched around online for companies that sell 0 Ohm resistors. Anybody have any clue as to where I can buy a 0 Ohm resistor??? And please don't tell me to buy some 22g wire and jumper it, because I won't do that. I know for a fact there are 0 Ohm resistors, just can't find any to buy. Here is the writeup on how to convert an auto ECU to a manual ECU, and what 0 Ohm resistors look like: http://www.theclubindustry.com/hondaecu/auto2man/

Any help on this would be really awesome!

94EG8

you can probably find them on digikey. I've always just used 22 guage wire, never had a problem. wire and a 0 ohm resistor are basically the same thing.

instructor74

Its not to hard to find one I always have a few junk radios or tvs to pull parts like that from. Nothing better then free.

SpoonfedCivic

I'll try digikey, but in the past you have not steered me wrong so if you have not had any issue with 22g wire I'll try that if I can't find the actual resistor I'm looking for.

SpoonfedCivic

Thanks again 94EG8 DigiKey has them in stock, was able to pick up 5 for $0.45 lol.

deschlong

iTrader: (8)

LOL. 0 ohms resistance is the same as a piece of wire or a jumper. Honestly, I wonder what Honda used in that spot for their Manual ECUs... did they pay extra for a "resistor" that has no resistance or did they just jump the connection?? Hah, I know which side I would bet on. I must say I'm curious why these even exist ... Google time I guess.

deschlong

iTrader: (8)

LOL. It's so that you can use the same automated equipment that sets resistors on PCBs and you don't have to use a separate machine to place jumpers. http://en.wikipedia.org/wiki/Zero-ohm_link

bwjedi

Finally somebody got it right. I'm a Computer and Electronics Engineering major. I honestly laughed when i saw 0 ohm resistor a wire has an ohmic value of zero. There is technically always a resistance value but it is so small it doesn't make a difference

94EG8

They paid extra believe it or not, although now that you've done some googling you know why. I always just used a piece of wire because i'm cheap and don't like to wait for parts (especially since a piece of wire is functionally identical)

deschlong

iTrader: (8)

^ No kidding! Fine, I guess I would have lost that bet. I *will* bet that the PCB producers had the capacity (ie equipment) to just use a jumper instead of a 0-ohm link ... wonder why they did it that way though? Are there *no* other jumpers on the board? Oh, well ... guess the OP will have a perfect replica of OEM design. Always good in my books. Good info and good work.

94EG8

I can't remember anymore if there are any real jumpers or not. When you realize how little Denshigiken or IPT paid for those parts though it probably made a lot more sense to use a 0 ohm resistor, i mean we're talking probably less than a dime in price difference here.

SpoonfedCivic

I see where you're all coming from with just using a wire to jumper it. BUT that wire is still going to cost money. So I went ahead and ordered the exact same thing used on the manual boards. I bet it cost the same if not maybe less to order 5 resistors for $0.45 than to buy a spool of wire. Because I know I have no 22g wire laying around. Also it just makes me feel good to do it the right way. Thanks for the comments and information.

NotAJDMFanBoy

It would have been more like a penny if that for the resistor vs a piece of wire. If you buy resistors or any component in bulk, the price goes down very quick. Compare the prices for components from Radioshack and Digikey.com and it's night and day. Radioshack is handy if I need a few little capacitors or solder or something, but if it's anything major, I order it off eBay or digikey.
By the way, Digikey is awesome. Good prices, fast shipping, easy to use website.