Not positive but have you checked the voltage/current running through there. The resistors you have are 1/4 watt which is not very much. If your coming close to 20mA which i wouldnt doubt the resistor could burn. For something I built with LED's i'm using a 15watt resistor pulling about 800mA. I know youll be pulling much less than that, but those 1/4 watt resistors are very weak.
Just something to check if it fails.
Just realized, 1megaohm, you could probably just leave that as an open circuit. 1 megaohm is almost like infinite resistance in that sense.
What did he say? Again in english LOL
LoL, sorry i'm an electrical engineering nerd.
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- 00 Audi A4 -- DD - 00 Mustang GT, procharged, built rear -- Sold - 93 Rx7 with a LS2 -- Not Finished
I was going to get a tuner for my car but I bought it already with a bunch of mods and I do not know what all was done to the motor and MT would not recommend me getting a tuner unless I could find out what was done so I just went with the MILs. I have had it checked and it says that there is something to do with a CAT deficency or something. more or less it was because the CATS are not there. I guess I will try my hand at making my own and see how that works.
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2001 Built 4.6,heads,cams,pulleys,clutch, trany,o/r x-pipes, flowmasters,410gears,lowered,sub-frame connectors, and more.http://www.automobrella.com/
Why not? I think it was pretty cool that he actually did the work himself. Soldering stuff isnt that hard, but its nice to be able to say you actually did it yourself instead of paying someone else to do the same thing.
The current generated by the O2 sensor is VERY low, less than 20 mA at 1.0V max = 0.020W--a 1/8th Watt resistor would work nicely. Making these was quite common some years back, here's a link to a write up I did in 2004 and revised/republished in February of this year...
< Message edited by cliffyk -- 9/12/2007 4:10:08 PM >
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-cliff knight- My Mustang 2003 GT, UPR X, Magnaflow, 180° stat, PP 70mm TB & plenum, Sniper tuned 3.73s, 252 rwHP/296 ft.lb. Multi-fuel: burns gas and rubber...
i think it is actually harder to instal the mil's themselves then to make that piece. the drivers side is easy i had to get a girl to grease up her arm to put in my passenger side mil it took her about 20 mins but it worked and i havnt had a problem since. the car deff runs like poopie whent the CEL is on. nice work my friend
okay, i've added the schematic for those of you that asked. once you get the pc board that's required the finished product will look much cleaner
I just picked up an off road H-pipe and have also gotten the parts from Radio Shack to make these MIL's. Question is how would this set-up look with the PC board? I've done plenty of wiring but have never used a PC board and was just wondering how it would be done. Thanks.
Here's my writeup on DIY MIL eliminators, we used to use 'em all the time on the later model Miata's. There's no need to worry about the 1/4W resistors. First off the maximum voltage out of a O2 sensor is less then 1.0V, and the resistors are 1.0 MΩ... Watt this all means is that the maximum power the resistor will ever see is 0.001 mW, or 1/1,000,000th of a Watt. W = (E²/R) which is\n this case = (1² / 1,000,000) = 0.000001, or 0.001 mW. The maxiuum current is 1/1,000,000th of an ampere (E/R) or 0.001 mA; or ... 1/20,000th of 20 mA...
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-cliff knight- My Mustang 2003 GT, UPR X, Magnaflow, 180° stat, PP 70mm TB & plenum, Sniper tuned 3.73s, 252 rwHP/296 ft.lb. Multi-fuel: burns gas and rubber...
Printable Version
RE: The home-made MIL's work! *pics* - 
2001 Built 4.6,heads,cams,pulleys,clutch, trany,o/r x-pipes, flowmasters,410gears,lowered,sub-frame connectors, and more.
haha 
