vp motor missing only idleing??? any ideas???

[evl-304]

hey guys n girls im havin a lil problem and its givin me the s**ts

ivchanged the coils, leads, spark plugs, and also changed the whole throttle body to stop it but still comes back

it runs perfectly when on the move smooth as but as soon as ur ildeing in drive and park(not as bad in park) it plays up like its got a miss somewhere.

any ideas??? any help would b great thanks

[vnv8driver]

manifold leak, ignition module, pressure regulator....

first one to check, did you do the igniter?

[Emackulation]

I think you should take the distributor car off and have a look at the terminals, see how bad condition they are, then go and buy a new one and also buy a new rotor button, the thing that spins arround inside the dizzy cap. If one of the terminals isnt getting a good connection due to wear and tear then you could have a miss.

[evl-304]

sorry i meant in a v6 commodore sorry forgot to say i have a v8 and a v6 woops my bad

[Boonz]

could be lower compression on one cylinder causing the miss, hard to tell without hearing it in person

[evl-304]

if it is lower compression how do i fix that??

[evl-304]

mite have found the problem jus changed the plugs and found one plug with almost no gap whatsoever could this cause it??

[Chirpstr]

Put Your Bellmouth Back In Or Cut It.

[Emackulation]

mite have found the problem jus changed the plugs and found one plug with almost no gap whatsoever could this cause it??

I think you found the issue.

[djvass]

m8 i have had the same problem with mine and i mean excatly the same problem to a t. I have changed what you have and still have the miss. I was thinking that it may be a vacume leak but cant seem to find one. Let me no what else you try and i will keep doing trying and will let you no.

[djvass]

mite have found the problem jus changed the plugs and found one plug with almost no gap whatsoever could this cause it??

Mine still done it after i changed the plugs and leads dont think this will be your problem. Mine had a big miss when i bought it as it was garaged and not even started in 3 years so i changed everything on it. It fixed the miss while driving but still does it when it is in park or on idle at the lights.

[djvass]

I think you should take the distributor car off and have a look at the terminals, see how bad condition they are, then go and buy a new one and also buy a new rotor button, the thing that spins arround inside the dizzy cap. If one of the terminals isnt getting a good connection due to wear and tear then you could have a miss.

These cars dont have a dizzy. They are running coil packs arn't they???

[djvass]

Put Your Bellmouth Back In Or Cut It.

Bellmouth what is it and what does it do?

[VPCalais38]

Does the engine make a ticking sound?

My old engine had a miss at idle until I had the valvetrain overhauled.
The miss wasnt a regular miss tho. It would idles smooth for a few seconds then have this annoying little cough and resume. Wasnt something that happened every so many seconds. Would be random almost.
New camshaft, lifters, pushrods, rockers and valves.
And the valve seats were done in the heads as well obviously with new valves.

Previously I had replaced all the same gear as you two ie: DFI module, coilpacks, leads, plugs, all the sensors, cleaned up all the earth points and cleaned out all the connectors etc in the engine bay. Still missed.

*shrug*

[djvass]

Does the engine make a ticking sound?

My old engine had a miss at idle until I had the valvetrain overhauled.
The miss wasnt a regular miss tho. It would idles smooth for a few seconds then have this annoying little cough and resume. Wasnt something that happened every so many seconds. Would be random almost.
New camshaft, lifters, pushrods, rockers and valves.
And the valve seats were done in the heads as well obviously with new valves.

Previously I had replaced all the same gear as you two ie: DFI module, coilpacks, leads, plugs, all the sensors, cleaned up all the earth points and cleaned out all the connectors etc in the engine bay. Still missed.

*shrug*

lol yep that what mine does. Yes does have a bit of a ticking sound.

[evl-304]

fixed my idle was the spark plug and changed the o2 sensor aswell runs really smooth now