Ok this is my problem I've finished my swap JDM S5 Turbo in a S4 Vert. She's been runnin rich as hell then figured it was the TPS couldnt get it adjusted right then got it as close as I could. Comin from school Thursday. It started buckin like crazys pulled in the gas station at 9:30 PM. It was runnin on one Rotor I guess but it was poppin flame throught the cat when I parked it at a friends house. Check the the Plugs wire are still good. She has been flooding since I did the swap. I'm runnin Premix, I'm wondering cause I put some gas in about 15 bucks and I might have put to much premix and clogged it, but I'm not sure. Could it be a Bad Coil, Dead injectors or something bad bad... She starts up like normal, stumbles on low and mid end wont go past 6k right. When I check the car the next morning the exhaust was White in the pipe. It was acting like I blew the cat but it was all intact. I'm at school and have no internet at my friends house. need help TODAY before 5 pm thanks so I can get her back on the road.
Mods' S5 engine with S4 wiring harness
Stock S4 Vert ECU 338
F5 Fujita Air filter
2 1/2 Down pipe
and 3" 5 zigan exhaust.

 

have you tried using a n332 or n333 ecu( real turbo ecu) i would think it would run alot better with the right ecu.

ive heard the rumor about using the vert ecu, but in all honesty i cant see how it can possibly run the engine right, since its programed for different injectors, and was designed for the non turbo boost sensor( which is scale is WAY different) there for it cannot compensate timing correctly.

hopefully you didnt blow the motor...
what injectors, boost sensor, and afm are you running? t2 or na?

 

Everything is S4 T2
MAF 318
Boost sensor 318
S5 Injectors 550cc all 4 stock.
FD Fuel Pump.

 

but you just said you're using a vert ECU, which would be non-turbo.

How much two-stroke did you add? It would probably have to be a LOT to make it run poorly...

 

about 4 ounces to about 4 gallons of gas when normally it's about 8 ounces to a full 13 gallon tanks in the tank

 

By 'a LOT' I meant something on the order of x number of whole quarts per tank. I add 16oz per 13 or 14 gallons of gas, you should be fine there.

 

Have you checked compression?

 

im confused
fill this application
Engine:
Harness:
ECU:
cause i understood a s5 jdm turbo then it changed to a s4 turbo w s5 injectors
remember s5 and s4 are two diffrent worlds no matter how close they are

 

Bad timing will make it run like ****, but I don't think that would explain the white substance in the exhaust.

 

@ Roto You can swap other series s4 to s5 and the other way also. Japan had only TII in Japan so all the Verts had TII ECu's Tuned different due to the wieght differences and timing & Fuel maps to compensate for the wieght.All that is really needed is the S4 sensors and Wiring harness with the right Injectors with a Turbo capable ECU and anything can be turbo-ed.@ K-Tuned I'm goin to after it stops rainning in So. Cal. I hope tomorrow.

 

After ECU issues have been eliminated as the cause, have the injectors professionally cleaned and tested. They fail through sitting...very often.

 

i know how a swap works im not new to engines but what i meant was which do you have because you stated it was an s5 then said it was all s4. thats what confused me.
unless you mean you have a s5 core with s4 acc. and front cover w s5 injectors
if thats the case then yes rule out the ecu before you can definately say its the injectors or even the coils.
and i meant to say jdm and adm are two diffrent worlds sorry (ie. fuel line placement)

 

@ Roto there was no disrespect intended. The Car has been running for about 2 months now and a week ago on the freeway the car started bucking like crazy and lost power hoped off the freeway it was runnin ok at idle. Then hopped back on the freeway and it did the same thing. Got to my friends house (the car is still there) and the exhaust was shootin flames out at idle. In the morning the inside of the Exhaust was chalky white. I just had my old resonator shortened so fit the down pipe and my exhaust. It still is runnin on one rotor and starts just like it normally did. We smell fuel, the leading coil stops firing when disconnected, Trailin shocked the hell out of me when I unplugged one of the spark plugs.

 

I found no compression at all on the front rotor and 100 psi on the rear rotor. I'm goin to pull off the Turbo and manifold to see if the apex seals are completely gone and any kind of scaring on the edges of the Rotors to make sure the seals are not stuck.
http://www.youtube.com/watch?v=JYFtb8i0AYo