VX S manual - slow to drop revs

[nzBrowny]

Gudday
New to the site, i have a 2002 VX S pack manual just turned over 150000kms

for some reason though, the engine holds its revs in between gears for a short time before dropping. On an early gear change they will even rise to about 2500 before coming down.
Doesnt seem to do it on down changing so much or when decelerating.
A free rev in neutral has it hold momentarily before returning to idle speed?

Can anyone please give me an idea what the cause could be? Many thanks

 

[qldhighway]

I would be looking at the TPS (Throttle Positioning Sensor).

Take it off and give it a clean.. I has a similar problem with an RB 30 one..

I know its totally different, but may we worth a try.

 

[soop]

I'd be giving the throttle a reall go clean.
Whip it off and give it a good scrub using some Turps in a tub and a nice stiff brush, the getin into the internal bits with an old tooth brush. A little pressure pack is even good to squirt into the small area's you'll be suprised how much crap gets into them.

If it still does it after that, Start looking for some split vacuum lines.

 

[Cameron P]

is it holding steady revs or just very slowly droping down when you rev it in neutral

but what you are describing in between gears, i have found all vx v6 manuals do that. sometimes it makes it sound like an auto

then i jump into my mates vy and the revs drop down like normal

 

[Problemchild_87]

mine does the same

 

[Cameron P]

yeah then its every vx manual

because i have cleaned my throttle body about 6 months ago and nothing changed.. but clean your throttle body anyway

 

[Cameron P]

but if its holding revs for too long and not just taking its time going down then read this

http://forums.justcommodores.com.au...6-5spd-engine-holding-revs-when-i-clutch.html

 

[VX Appeal]

My VX manual s-pac does the same.. I figured since so much air goes into the engine, it was having a hard time getting it out again so I was considering extractors and ****.. Will this make no difference?

 

[Cameron P]

nah extractors and SS inductions CAI will make no difference as i have these on my car

 

[MR_VX]

yep i have the same **** happening with my vx manaul, and its only got 78,000km on it. Ive got a full exhaust. And yes your right ^^^^ it does make it sound like a friging auto. i wish i could fix it to.