VN To VP DFI MODULE

[hazza]

Hey guys.
I have had a few problems with my car but i have worked most of them out with ur help as well but now i have one more problem.
I brought a brand new DFI MODULe for my VN and i took of my old one and i relised it has had a VP DFI module upgrade. Now is that a good or bad thing. But i replaced it with a second hand one and it worked great ie the car started straight away and wouldnt rev up or down.
But after i had lunch about 2 hours later it went back to tis normal self. Wont start straight away and revving up and down. Wat else could it be. i will be testing the Coilk packs 2morro.
It becomes really embarrising when ur car doesnt start straight away.
PLZ HELP

Thanks guys

[88GreenVN]

Check the crank angle sensor.

[hazza]

oh yeah i forgot! i have replaced the Crank angle Sensor. that and the computer were the 2 first things.

[88GreenVN]

Cleaned the throttle body sensor? ....um the thing under the t/b.

[hazza]

yeah that was the first i did before i replaced the throttle body. I cleaned it made sure their was no gunk. I was looking at a few posts and some one mentioned the fuel filter. I will be testing the Coil pack 2morro hopefully.

[88GreenVN]

Go over the connectors/earths if its heat related eg when warms up..

[vq_statss]

i have same proplem with my 5lt.i think its somthing to do with timing.

[2001_VXSS]

i have the same problem. and it only does it when it get warm. you can drive it like normal and will be fine but as soon as you drive it with some stick it will stop and run rough.. does that mean it could be a particular part?