recently did a full turbo 2 swapp on my na chassi, minus the turbo 2 harness. my turbo 2 harness was hacked up so i modified my na harness to run it. ( is this a bas idea??? ) car runs fair on the na ecu but would like it to have a rev limiter and possibly a turbo base map. when i plug in my ecu that came with the swap it starts and idles fine but when you rev it it drops a whole rotr. ( thats what it seems like.) through much searching o found a thread that said you can not run a n340 jspec ecu in a aspec car. is this true?? is ther a pinning difference in the two or what. any help be real nice.

 

i know most people have trouble with the s5 jdm ecu...i would look for a usdm s4 t2 ecu, they can be had for around 50 bucks. make sure you are using the correct ecu and map sensor too.

 

some one has to have access to a jspec wiring diagram

 

ok the first time i tried to run my car with the n340 ecu it started but onl ran on one rotor. then several weeks later i decided to work on it again and it started and idled on both rotors, but when you reved it past 3500 rpm it fell on its face. (no secondaries ) so i blew the whole thing off. now that i have been studing the forums trynig to find an answer i decided to try again. this time it starts on one rotor again. very weeird. how can it just to decided to run this way.

 

save yourself the headache and get the correct parts.

 

+2

 

when you say hte right parts you mean a turbo 2 boost sensor and maf, and a us spec turbo 2 ecu. so what should i do with this n340 ecu. make a papre weight out of it

 

Click the link in my sig. Don't use a J-spec ECU.

 

n318 pressure sensor
n318 air flow meter
n332 ECU
turbo fuel pump or better and you'll be set.

 

I went to the parts store today (nappa) and looked up a fuel pump for both turbo and non turbo same part numbers. Does nappa know what they are talking about

 

Buy a Walbro 255LPH and be done

Less than 100.00 on ebay..