Thread: 304 wont idle help please

ive been putting a 304efi into my one tonner. its all done but i cant get it to idle, it will for 10-15sec then it starts messing about and dies. the motor has just been freshened up and has a more aggressive cam but not huge, the computer is standard so far i plan on getting it chipped but wanted to sort idle first.

things ive tried are another idle valve off another running car and made no differnce
so my thourghts are its got to be timing ive set it at 10deg base.

after reading the haynes manual it says to do timing i have to earth out the adel plug then just set base timing at 10deg and the computer does the rest

could some one confirm what why is the correct way to do it thanks

any other info please ask

one last question i have is because i have installed a larger cam is this causing my problem?

here is a link to the cam specs:170-B Camshaft | 304 EFI V8 | HOLDEN | Kelford Camtech

sounds exactly like youve set your timing without bridging the plug. follow the manual directions and it will be fixed. due to your cam swap u may have to screw in the throttle stop a little aswell i had to on my ute. if its vn wiring the diagnostic plug should be a small white plug(6?pin) near computer if vr/s it will be a long black plug(10?pin)is normaly under gauge cluster above pedals

have checked fuel pressure and is fine. since getting motor goin and putting dizzy back in i have not earthed out plug to set timing so im guessing thats what it is
next question in the manual it says"earth out adle plug(6pin white) to set timing" the problem is thats all it says. so to do this do i just clip a fly lead from the earth on the adle plug to earth on body to set? or is there more to it?
thanks for help so far

my initial thought was fuel pressure , but now i am going to go with the timing of the cam . just adjust your throttle body so that the butter fly is open a bit,fire that sucker up then check and adjust the timing to suit the cams needs, and also just make sure that its not a vaccuum line of a sensor not connected (seems to happen a fair bit when people get excited)

alot of blokes set it from 14-18 degrees .

have checked all vac lines and nothing un-accounted for will bridge plug and set timing see if that works, will report back thanks for help people

ok so just to check the pins i join together on aldl plug are the earth(black wire) and the diagnostic test terminal(white/black wire) then i set my timing? thanks

ok so i tried timing and new idel valve and another ecu(standard) and it still doin the same thing wont idle so im guessing the computer needs to be tuned to suit the motor as this cam must be to far away from the standard one

might seem silly but are you sure it has a 65mm v8 throttlebody and hasent been swapped to a v6 1? this could mirror your problem