VN-VP Computer!!

[VNCPTR]

Hey all,

I'v got a 92 VP Berlina, I was just wonderign would a VN Calais Computer plug in and work fine in the VP??

Cheers VNCPTR

[centy]

it shoud as long asit is a later model car it came from.
what is wrong wit yours?

[VNCPTR]

the car is coughin and spitting like its short of fuel when you put the pedal down, even the slightest it still carrys on, so im going out there soon to change filer, get the air compressor and blow the fuel line clean and change injectors, if it not them then ill do the fuel pump if it not that then it will have me puzzeled and then ill go think of somethign else lol

[88GreenVN]

How old are the leads n plugs. Have you checked the spark from the coils?

[VNCPTR]

hmmmm lol that i havent done, cheers man ill go to that as well

[VNCPTR]

but i should say, we just brought it 3 days ago and it was less then 1/4 full of go go juice, so i assumed it would of picked **** up from the bottom of the tank, but anything is possible

[88GreenVN]

hmmmm lol that i havent done, cheers man ill go to that as well

I'd do the leads before the injectors and see what you get from that.

[centy]

also try to get a code from the computer.
plugs
leads
codes
computer reset
coil resistance test
fuel filter
air filter
throttle body clean
check for broken vacume hoses

I would probably check for faults in this order.

[centy]

computer is not a impossibilty but is very unlikley.

[VNCPTR]

o well i flushed the fule line out with air compressor and put filter in still spitting and carring on, its just had the coilpacks replaced and leads. so im not sure what to look at now.

[centy]

dude test stuff first. How to test most thing are on this site. If u want to buy stuff get normal service bits first. Filters n plugs. Test dfi module. Clean throttle body and idle air control valve. They tend to gum up.

[skyper]

don't buy another computer yet ,try another first ,my car did the same thing and still kept going,i thought if it was the computer it would just stop,but just missed and jerked and a computer fixed it ,the wreckers wanted more than a new one

[VNCPTR]

it idels fine its just when u go to take off or put your foot on the acclerator just the slightest bit......... ill clean the TB and sheck all the other basic things and see how i go

[VNCPTR]

Cleaned the TB and it made no diff, infact it made the ****ing thing worse........... and yes i made sure everything was put back in the right spot, even tryed a 65mm TB thats new and still did the same thing.

how its behavin now is that when i back off the revs go up and down and then once iv stoped it idels really rough.

[88GreenVN]

When you put the other TB on did it have a different TPS on it?

Just sounds like the TPS may be cactus.

[vnv8driver]

Could be many things i would start off with a complete service of the motor & ancilleries then if your not getting any fault codes i would do some tests such as a fuel pressure & compression/vaccum test. If your not getting any codes & the tests lead you to nowhere then a possible suspent to the fluctuation your getting may be an internal problem.

Guessing its a v6 since you replaced the coilpack? i thought it was a hsv spec v8 block?

[vnv8driver]

Also i see the plugs havent been changed? or even they have a slight knock on a plug or a fault from deteroration can cause exactly what you described, especially under load.

[VNCPTR]

thanx guys, will check it out.......

[VNCPTR]

Well guys the car has givin me an answer to why its been playing up.

after going shopping today i got in the drive way and i let it idle, wasnt gunna happen so i just gave it one al-mighty rev and what did i see in the mirror.......... a massive cloud of black smoke.

So seeing that has told me everything as to why its running so ****.

Cheers guys for all your help and imput but now im after a V6 Motor lol

[88GreenVN]

Tells me that it is running rich & rich & rich.

[centy]

posible fault injector or oxygen sensor.

[Pub247]

Sounds like its too rich Mains things to check is your fuel pressure possible regulator failure. Maybe oxygen sensor but it shouldnt make it that bad

[VNCPTR]

hmmmm i dunno guys its looseing power also, but i got another motor for it for $150 with 220,***ks on it.

it dosent run smoooth at all now when it use to when you reached to your spped and stayed there.

[VNCPTR]

if i took the spark plugs out i should be able to tell if its running rich yer??

i start it and the plugs should be wet or smell like fuel??

[Reaper]

o well i flushed the fule line out with air compressor and put filter in still spitting and carring on, its just had the coilpacks replaced and leads. so im not sure what to look at now.

If you are in melb I have a few VN/VP computers you are welcome to try.

Reaper