Hi , in the morning when I attempt to start the car , it just refuse to start . it has fuel as I have fuel pressure gauge , check spark on No 1 cylinder , it has spark as well . change to new set of plugs , still no start . then I change ecu to good know ECU , no luck . Any one in the south east Melbourne have S2 PTU which I can borrow for a few minutes , pm me or call ,text on 0422648762 . I need to fix it ASAP as I need car to go to work . Thanks.
Ive got a working series 1 ptu you can borrow if you want...thats all i can offer as I'm not mechanically minded Abraham
Well , my issue was the spark relate . when cranking , it did have spark but very weak . I believe , on cold start , the injectors will pulse twice and squirt a lot of fuel into the combustion chamber . And with weak spark and very cold morning down here in Melbourne , the chance for fuel to ignite is very low . I used Iridium spark plug at that time , and Iridium spark plug won't survive flooding issue . After few fail attempt to start , I pull out number one plug , and it was too wet , even if you have good spark then , sure it still won't start . New set of spark plugs went in . Weak spark point me to PTU . I have S2 PTU and it was there since I bought the car . I tried to do simple thing first . Clean both PTU connectors with electrical cleaner , next check the two earthing point at the rear of the plenum . The three rings earthing connectors were look very dirty and cover with dust . Use sand paper to sand it down till it look nice and shiny , also clean the contact point on the plenum as well . To make it earth better , I made one cable to connect it with negative post on the battery as well . After all , tried spark on cylinder number 1 , looking good . Crank the car , It start with even 5 cylinders , ( no 1 out to check for spark ) . Picture of earthing point . Well the problem will vary with every car , so if you have hard starting problem the best is following the service manual :
