FD from hell?
03-11-12, 04:32 PM
#1
FD from hell?
Having problems with my FD it is completely built inside and out doesnt even have a mile on it its a single turbo race port on a power fc. OK the porblem with the car is that i cant even drive it down the road it goes to full rich on light throthle and wont go anywhere. ive changed everything from sensors, coils ,upper intake gaskets, fuel pump , fuel filter, harness, ecu,pic ups for timming, and even rebuilt a different engine an put it in with the same problems ive changed everything exept the car, NEED HELP.
03-11-12, 11:16 PM
#6
it was running 550 and 1200cc's and i installed the stock 550 and 850cc and it still does the same. I reset the computer and I downloaded a map and it still acts like that. Its not tunning I tried getting it tunned but they couldnt figure out the problem it was having.
03-11-12, 11:23 PM
#7
I have alot of experience with rotary's I have a first gen with a turbo II swap and a miata with a turbo II swap and have built tons of engines. The compression on the first one was perfect I changed it thinking there might be a problem with it that was the last thing i did, The only thing I have not changed is the body harness and the shell lol. Could the fuel pump get too much voltage and over pressurize the system.
PLZ dont say it needs to be tunned its been taken to 2 shops
PLZ dont say it needs to be tunned its been taken to 2 shops
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03-12-12, 05:30 AM
#9
When you setup the single wiring harness, did you check continuity with each pin? Did you ensure each joint had a ground? I saw that you said you switched harnesses, a possible sensor misconnected could be it as well. Easy to do it twice.
03-16-12, 10:57 PM
#16
i did it just floods out, my friend said that FC's have a low pressure relay and high for the fuel pump i wonder if the fd has the same and its running the walboro at really high pressure im going to buy a fuel pressure gauge and get an aeromotive regulator
03-23-12, 08:55 AM
#22
Tow it to a reputable rotary shop. It seems that you're in over your head. I would tell you to bring it up to me but you're quite a ways away. I have a couple good ideas. One simple one is replace those 550's as it seems one if not both are sticking. Don't rule it out unless you've swapped them with a known good set as it's more common than you would think. Next would be looking into the wiring. I'm very sure its one of the two as your symptoms are the same as I had with one of my customers car's last week...