Saturday, January 28, 2006 - 12:12 pm, by: Peter Keen(Slaughter)
Yeah i started my girl up today and noticed that the idle was "unstable" then i keep driving and notice that when i try to boost all it wants to do is miss and cough and fart! any ideas what could be doing this to me?
Saturday, January 28, 2006 - 11:29 pm, by: Peter Keen(Slaughter)
yeah it isnt rich on idle! the safc says "PRS -99" if that helps! but ill try and check where the map sensor is anyone got a photo to help me locate it>? it missing really bad even on idle! i think it may be the tune onthe safc! so can someone tell me if this will help i cut the power to the safc by cutting the power wire then simply itll run as rich as possible (from the standard ecu with 440cc) then i can see if its the tune or if the safc is playing up? but will i also loose the stored tuning points if i cut the power? are the coil packs prone to failing? plugs where changed when the single turbo went on! about 3 months ago! any other ideas people?
Sunday, January 29, 2006 - 12:12 am, by: Dean Carsen(Deano)
Check that all the injector wiring caps are on tight.Similar thing happened to me recently. your SAFC shouldnt be doing anything at idle.Its in closed loop so it shouldnt be set to compensate below 2500 rpm
Sunday, January 29, 2006 - 01:45 pm, by: Peter Keen(Slaughter)
hey there checked my plugs black as a mofo! Cleaned them up and threw them back in still missing! Lew said to check coils so i unplugged them when the car was running and car did make some noises like it wanted to die in the ass but it didnt she kept running anyone else got any other ideas?
Ben Evans TryHard Qld "Master Power" Turbo 1J With Xtras
Monday, January 30, 2006 - 01:24 am, by: Ben Evans(Sbyder)
if your plugs are rooted, they'll need to be changed, not just cleaned.
When you unplug a coil, you'll notice that the engine will miss badly, then when you plug it back on it should fire. When you find which coil doesnt affect the miss, there will be your problem. It may be arcing out due to a crack or loose connection. Be careful when doing this, because you can get a nasty zap.
The map sensor is on the firewall right next to the inlet manifold. Its a small black unit with a vacuum hose falling out its bum.
Monday, January 30, 2006 - 03:50 pm, by: Peter Keen(Slaughter)
Thanks ben and Davey! yous were both helpful and also correct! turns out problem was map sensor ran like a dog then computer started to realise it was working and re taught itself! mind u only found it was map sensor when i pulled all plugs and coils off! but it was a learning experience anyways thanks everyone
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