Hi Guys, Friend of mine owns a 2nd gen MR2 W20, it's the model with the 3S-GTE. (I think it's a 3S-GTE, either that or a 3S-GE) The engine seems to be cranking but it won't seem to crack over till it starts? I'm going to head down and have a look tonight, but I've kind of ruled it out to these things: Battery, not enough voltage which can all probably sorted out by a VAT machine Fuel System, the fuel might not be reaching the cylinders possibly because of lack of pressure Timing, Could be the reason why the engine isn't rolling over Ignition/Spark, possibility of one of the spark plugs not firing properly And/or Compression. I don't really know whether I'm missing anything here. He recently installed a head unit as well, and the problem to me sounds electrical because the engine is cranking so I don't think it could possibly be mechanical. Any help provided is as always much appreciated guys. Thanks