Vk 5ltr

[Allan78]

Hi I am after some advise i have put a vp 5lt in to my vk from my vn was ,I use a v6 conversion harness, engine was running fine, but recently decided not to idle on starting. If I give it a little throttle while cranking for about 10 sec the engine will start and idle but up and down in rev's ,I've renewed the coil ,dissy, the idle valves on throttle body ,change the spark box,and changed injectors and temperature sensors ,new plugs,have tried another spark box and computer ,add earth lead checked all connection .any help would be good thanks

 

[EYY]

Fuel pressure?

 

[gtrboyy]

Fault codes?

 

[Immortality]

Bad TPS sensor?

 

[Allan78]

Bad TPS sensor?

 

[Allan78]

Changed all the sensors o the throttle body with new one

 

[Allan78]

Fault codes?

 

[Allan78]

Fuel pressure?

Has new pump will run once i use the throttle when cranking

 

[Allan78]

Only code 12 which my understnding is all ok

 

[EYY]

Only code 12 which my understnding is all ok

It’ll repeat code 12 three times before moving to the next code - were you aware of this?