Ok I have a 94 Rx7 with a couple thousand on the motor. It is a t78 Rx7 with a stock fuel system and a stock computer I don't know why they built this car like this but I have not had enough time to change this yet, but I plan to after I fix this problem. It fouled out the plugs the other day, I noticed it idling very rough so I changed them, I started it up idled fine, With an aggressive street port it tends to "Wamp Wamp Wamp" basically what I expect. I drove it down the road and went to "roll" into it and it got up to .2 Bars and Completely stoped making engine noises like it stopped, then it hit, then stop, then hit , then stop... It sounded like a V8 Car that cannot take a shot of nitrous. I checked my wires/plugs and they are not wrong, but just out of curiosity switched the two trails and went and ran it, It did the same thing..... So I have no clue as to what I do next. Please Help, I appreciate any advice... I am also entertaining CASH OFFERS ...

 

T78 and a stock computer. Your car's going to be throwing a million codes for missing all the twin related components. Can you tell us for sure if you just bought the car and started driving it with these problems. You should verify that you actually do have a factory computer by taking off the passenger kick panel. Have you tried putting new plugs in?

 

it needs a computer, and a tune for a fact. since it has a single turbo i'm guessing the rats nest, solenoids, and all that is gone. which is probably throwing codes and putting the car in limp mode. I wouldnt even try diagnosing the problem you have until you get the problems with the current setup fixed. Check the compression if you havent already. Check the map sensor as thats easy enough. pull the codes from the computer. Get an aftermarket ECU, fuel system, wideband , and a decent tune. The fuel maps on the stock computer wont even be close to correct with all those mods. .2 bar from a 78 is much different then .2 bar on stock twins.

 

Just fixed it. Had to reset the battery...

 

it was probably throwing a code then. if it comes back i would pull the codes to see what is actually causing the problem that way a resistor or other solution can be arranged. preferably a new ems