vn problems

[dasic1]

Hey guys im hoping someone will be able to help me, ive had the car at a mechanic and they cant find anything wrong. Runs ok when its there

Sometimes it stalls while idling, sometimes it wont start, sometimes starts but sounds like its missing while blowing heaps black smoke out the exhaust. It can start one minute, not the next then starts fine. Can have no trouble for a day but heaps the next.
In the last year ive replaced the fuel pump and whole coil pack thing (second hand), cleaned the throttle body, which didn’t make any difference. (had same problems but now its worse)
Last week I replaced the CAS with no improvement. Ecu shows code 12
Any ideas

[delcowizzid]

find an ecu you can borrow to test with.

[dasic1]

I know someone with a vp will that do? Mines a 89 model.

[delcowizzid]

yip vp ecu is fine you should swap the memcal over but it doesnt really matter for a quick test for half an hour

[dasic1]

Thanks for that

[dasic1]

I ended up getting a new computer and now shows code 15. Do i just replace the temp sensor? Still only shows 12 with the old.
It still has a slight miss when revving in park with light throttle.

Thanks

[88GreenVN]

I ended up getting a new computer and now shows code 15. Do i just replace the temp sensor? Still only shows 12 with the old.
It still has a slight miss when revving in park with light throttle.

Thanks

The Temp sensor is a very important part when it comes to fuel ecconomy. Probably worth replacing anyway and the VN's are getting on abit