Hi I have a homemade FCD that I bought off a member on DSMtuners. I need help installing it into the car. I have a 1999 gs eclipse with turbo. My map sensor has 3 wires, yellow/black tracer, Green/yellow tracer, and a black/green tracer. On the FCD i have 5 wires. One says 12volt, one is ground, one says 5v one says, To MAP and the last one says to ECU. Does anyone know which wires go where?
I understand the 12v and ground but i dont have schematics for the MAP and what the wires are can anyone tell me?
#96942, "RE: Fuel cut help" In response to Reply # 0
Originally posted by jeff99gs4 Hi I have a homemade FCD that I bought off a member on DSMtuners. I need help installing it into the car. I have a 1999 gs eclipse with turbo. My map sensor has 3 wires, yellow/black tracer, Green/yellow tracer, and a black/green tracer. On the FCD i have 5 wires. One says 12volt, one is ground, one says 5v one says, To MAP and the last one says to ECU. Does anyone know which wires go where? I understand the 12v and ground but i dont have schematics for the MAP and what the wires are can anyone tell me?
You should have just gotten the FCD i make which only has 3 wires on it, and its ALOT easier to install.
Anyway yours will go like this:
Cut the MAP signal wire in half (yellow/black). The wire coming from the MAP sensor is the "To MAP wire" the other half leading to the ECU is the "ECU side."
Ground is the Black/green MAP wire.
5V is the Green/Yellow wire.
And for the 12v wire, I guess you could just wire that to the battery or any other 12v source for power.
In my opinion, send it back to him and buy mine, only takes about 2 mins to install.
#96946, "RE: Fuel cut help" In response to Reply # 3
That is exactly what I needed thanks!!! Trust me I would have bought yours but I saw the thread that you were selling them in too late I think yours was alot cheaper too. So is the one I got BAD? does it work?
#96947, "RE: Fuel cut help" In response to Reply # 4
it works fine and Paul did a lot of work to make it as accurate as possible. It will work fine but you will need to run a 12v wire to it or install it right by the ECU.
The one that Mike and I have used for 2 yers now just simply taps into the 3 wires at the sensor or at the ecu. There is no cutting of wires needed. You simply adjust the potentiometer to match our voltage point and your good to go. Paul Argues the 3 wire alters the map signal but I can prove it doesnt with my scanner.
#96948, "RE: Fuel cut help" In response to Reply # 4
Originally posted by jeff99gs4 That is exactly what I needed thanks!!! Trust me I would have bought yours but I saw the thread that you were selling them in too late I think yours was alot cheaper too. So is the one I got BAD? does it work?
#96954, "RE: Fuel cut help" In response to Reply # 6
So what is the best way to tune it? Should i blow into my MAP till it reads 5v then tune the potentiometer till it reads 4.7? Any suggestions on for tuning this FCD would be helpful.
#96955, "RE: Fuel cut help" In response to Reply # 7
basically. tune to 4.60v. If you hiccup at all tune it just a tiny hair. What i noticed with mine is that when set in the summer, fall it needed to be tweaked just a tiny bit then I never had to touch it again.
#96957, "RE: Fuel cut help" In response to Reply # 8
Yeah I heard about tuning it in fall. Do you have to turn it up or down in fall? Can the voltage ever be too low? If I have this thing tuned right, it should never hiccup right? or will it still do it a little?
#96959, "RE: Fuel cut help" In response to Reply # 6
Originally posted by djtrickee
Originally posted by jeff99gs4 That is exactly what I needed thanks!!! Trust me I would have bought yours but I saw the thread that you were selling them in too late I think yours was alot cheaper too. So is the one I got BAD? does it work?
The one you have works great. No problems with it at all. Different design. Its not bad. Eclipse98tuner copied his design from one of the original(to the best of our knowledge anyway) designers Dennis AOBE designs. Archived link here: http://web.archive.org/web/20050217072211/http://www.fwdmopar.com/sites/dennis/howto.html I wouldn't call them an eclipsetuner98rs FCD. He built them yes, but give credit where credit is due. Your should work great.
#96960, "RE: Fuel cut help" In response to Reply # 11
Originally posted by eclipse982nrRST
Originally posted by djtrickee
Originally posted by jeff99gs4 That is exactly what I needed thanks!!! Trust me I would have bought yours but I saw the thread that you were selling them in too late I think yours was alot cheaper too. So is the one I got BAD? does it work?
The one you have works great. No problems with it at all. Different design. Its not bad. Eclipse98tuner copied his design from one of the original(to the best of our knowledge anyway) designers Dennis AOBE designs. Archived link here: http://web.archive.org/web/20050217072211/http://www.fwdmopar.com/sites/dennis/howto.html I wouldn't call them an eclipsetuner98rs FCD. He built them yes, but give credit where credit is due. Yours should work great.
Still an ol' jerk. I was never taking credit for anything, lol.
Whatever. Never said you were. Just providing clarification since you are selling these as YOUR FCDs. thats all, you young jerk.
......................................................................................................................... Built. That's All... ......................................................................................................................... www.monkeybuttpirate.com ......................................................................................................................... 2 Fingers of Scotch with a milk back... Stat!
#96962, "RE: Fuel cut help" In response to Reply # 12
Will you two quit bickering? Mike wont claim them as his own because i made him his first one. Mike you better not have just copied my instructions without credit to the author....
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