new recruit

Has anyone tried to make this. I pulled it off the internet from a link someone out here gave me. Its for an 87 t2. Let me know if it worked?

Thanks

MtnRacer

Well, there's no way for us to be sure if you don't post the actual how-to itself, but I'm sure it works. Lots of guys have made their own FCDs, it's not a very complex design and they're pretty easy to install. Go for it!

Steve

P.S. Here's a link to a write up I know works for sure: http://www.fc3s.org/fcd.html

jimmyv13

I made mine last week. It's time consuming, but I'd rather spend time than money. There are only a few parts to solder, but plan the board carefully. I spread my components out all over the board and used jumper wires for connections. Be sure to place the trimmer in a spot that can be easily accessed for adjustment. There is a screw on the end that is a tune for the exact voltage that is sent to the ECU. Get a MM before you start, you'll need it for testing and diagnosis if something should go wrong.

I did a search of some other threads on this subject.

DIY FCD

Good Luck!!!!!!!

jreynish

iTrader: (2)

Does anybody know of one that would support and s5?

jimmyv13

From what Paul told me, his FCD is universal, 87-91.

new recruit

I bought all the parts but there is a few unclear things to me. Its been a long time. Does anyone have pics of their board or some drawn plans? Thanks again.

new recruit

I think I figured out how it goes together except for 1 small detail. Mine is off the FC3s org site as well. The R3 adjustable resister has three prongs Which one goes to ground and which on goes to Vref.

Thanks

Tec

I just had a friend build the same FCD! I'll ask him witch ground he used for the r3 resister. We are goint to install it tonight into the ecu. Hope it works?? for the ten bucks in parts i guess you could build two or three more

jimmyv13

It doesn't matter. I hooked it up both ways and the results were the same. Personally, I hooked mine up with the Vref pin where the screw is and the other end as the ground. With it wired this way, it was easier for me to get to the screw to tune it. I have numerous emails from Paul about the construction. If you run into a problem, email him and he answers quickly, almost always the same day.

new recruit

Thanks again , now I have everything straight. Here goes. Oh and maybe Paul doesn't like me Its been about a day and a half and no reply. Oh well , everyone needs a holiday sometime.

jimmyv13

I know this thing pretty well, just post any problems you run into and I'll talk you through them. I bothered him for two weeks before I even bought the parts just to make sure I could do it with very little soldering experience. Once you get going and understand the component, you'll be surprised how easy it really is.

new recruit

Thanks, I'm starting it tomorrow. Your right, the more I go over it the easier it looks.

Richard Miller

could someone post a picture of the finished product. I started one but i am a little stuck.

jimmyv13

That's the problem I had, no pictures to go by. There aren't a lot of parts, just spread them out on the board and use jumper wires for the connections. I'll try to take pictures of mine this weekend and post them on Monday.

new recruit

WOOHOO! Done . I haven't put it in yet, but its tested and calabrated. 3.65V . Now I just have to final the install. How did you glue the board in the box? I have silicone or hot glue.

jimmyv13

Good job!!!!

I didn't glue the board down, just in case I had to do some repairs to it in the future. I put the board in the box and siliconed the wires as they came out of the box to keep them from rattling around.

new recruit

Well I installed it . it worked fine on start up but once the car was warm(normal) the coolant buzzer sounds and it never did that before. I checked the coolant and all the connections that i was near but nothing. I even disconnected the boost sensor and the buzzer stopped. What do you think??????

jimmyv13

Did you test the FCD in the car before you started it up?

new recruit

Yep, everything was fine. I'm starting to think it has nothing to do with it. I went over all my connections 100 times. and all I have to do is turn the ignition on and the buzzer sounds. I've checked every thing I know to check. Man this sucks. I don't want to drive it untill I figure it out.

jimmyv13

What???? That's really weird. It has to ve coincidence. Find the coolant level wires and check for a short. I can't believe the boost sensor has anything to do with the coolant buzzer.

Tec

Mine work! but i cannot get the stock turbo to build more then 9psi? I have a mech boost controller, opened it all the way still 9psi. Do you think resetting the ecu could help??

NZConvertible

What mods do you have? an FCD doesn’t make you boost higher, it just removes the fuel cut.
BTW, if you have a MBC that’s fully open and you’re not boosting through the roof, you’ve installed it wrong... There’s nothing electronic about the S4’s boost control, so no.

new recruit

I'll check all the wires on Mon. I don't have to drive it right now anyway.

new recruit

Well, I made A whole new FCD because the other one kept setting the coolant buzzer off. I took the car out buzzer sounding now intermitantly. Put my foot into it and the FCD worked perfect with buzzer going on and off. Then I started to smell coolant.

It was the freaking coolant hose under the oil filter. The buzzer warned me before it completly went. How is that for a coincidence. Now i'll take it apart and order a new hose. Now I guess I have an extra FCD.

TurboII RudeBoy

does anyone wanna make me one,i don't know **** bout puttin sumthing like that together.please sumone say yes