ok so i need your help. my car is throwing a code 43 which is for fuel supply system. but my check engine light only comes on on the freeway? won't turn on till i'm going about 60mph? what do you think it could be? i have a turbo D16Y8 & its a p28 ecu. Please help!

Thanks in advance!

 

anybody?

 

help!

 

When I had my ls motor in my car it had the same code,
it was't turbo. But it went away when I changed my o2 sensor.
I changed my fuel pressure regulator first but that didn't help.
good luck

 

i had that code, and it didn't go away until i replaced my clogged up cat with a test pipe. i'd take your cat off, reset the computer, and see if it goes away. then go from there.

 

i have no cat? now what?

 

try the 02 then look at ur main realy