SUS55 Posted April 3, 2005 Share Posted April 3, 2005 I have a weird problem in my RB silvia and am really stuck for ideas for what it could be!! When the car is cold, and only running for about 5 minutes, it pulls hard and has NO problems whatsoever... But after 5-10 minutes when shes nice and warm, she starts coughing when coming onto boost and backfiring and yeah, not a happy engine... My thoughts are its an ignition problem? spark plugs/coilpacks etc? so i replaced my plugs with new iridiums, gapped them and shes still doing it... So my next guess is coilpacks, they are 2nd hand coilpacks that are in there at the moment because they had to be replaced as the last ones ummm, melted. I NEED HELP, ANY RB EXPERTS? Link to comment https://www.sau.com.au/forums/topic/69157-unusual-problem-with-rb-silvia/ Share on other sites More sharing options...
Wazz Posted April 3, 2005 Share Posted April 3, 2005 soooooooo its not up to normal operating temp when your taking it onto boost? if so..treat the car with some respect.. let the car warm up for 5 or 10 minutes or drive it very easy untill is warm.. before even think about hitting boost.. thats how you can break shit.. also could be a coil pack.. so yer if the last ones melted.. WTF are you doin to the car i've had my rb sil for a while now.. had no problems with it so yer Link to comment https://www.sau.com.au/forums/topic/69157-unusual-problem-with-rb-silvia/#findComment-1281368 Share on other sites More sharing options...
aKTiVE Posted April 3, 2005 Share Posted April 3, 2005 i had that problem, and it was my CAS (crank angle sensor) Link to comment https://www.sau.com.au/forums/topic/69157-unusual-problem-with-rb-silvia/#findComment-1281514 Share on other sites More sharing options...
SUS55 Posted April 4, 2005 Author Share Posted April 4, 2005 mmm, any more tips? still trying to work it out Link to comment https://www.sau.com.au/forums/topic/69157-unusual-problem-with-rb-silvia/#findComment-1282239 Share on other sites More sharing options...
Morgs Posted April 4, 2005 Share Posted April 4, 2005 Fuel pump Link to comment https://www.sau.com.au/forums/topic/69157-unusual-problem-with-rb-silvia/#findComment-1282322 Share on other sites More sharing options...
jazza08 Posted April 4, 2005 Share Posted April 4, 2005 injectors Had the same problem and it was a coil pack, but if uve checked that then eh.. clean ur fuel system out and check ur plugs constantly. Link to comment https://www.sau.com.au/forums/topic/69157-unusual-problem-with-rb-silvia/#findComment-1282426 Share on other sites More sharing options...
SUS55 Posted April 4, 2005 Author Share Posted April 4, 2005 mm ok cheers, ill try all of the above asap! its got a 600hp fuel pump, could it still be the problem? and someone told me to do diagnostic checks on my ecu, but i got a mines in it, so yer, cant... Link to comment https://www.sau.com.au/forums/topic/69157-unusual-problem-with-rb-silvia/#findComment-1282608 Share on other sites More sharing options...
SUS55 Posted April 5, 2005 Author Share Posted April 5, 2005 fixed, all it was, was dodgey wiring to the afm, how gay... Link to comment https://www.sau.com.au/forums/topic/69157-unusual-problem-with-rb-silvia/#findComment-1284871 Share on other sites More sharing options...
Fidel04 Posted April 12, 2005 Share Posted April 12, 2005 yeh i was gonna say check ya afm Link to comment https://www.sau.com.au/forums/topic/69157-unusual-problem-with-rb-silvia/#findComment-1295794 Share on other sites More sharing options...
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