URGENT HELP please motor reving to high

[MR_VX]

hi ive just finished swapping my plenum and throttle body (Mace Engineering 69mm throttlebody) over to port and polish ones on my vx v6, when i turned the motor on it was all good reving normal around 900/1000 rpm when i gave it a few squirts of acceleration it started to rev up to 2800 rpm and stuck on and wouldn't rev down, i know the cable/petal isnt stuck can some one tell me whats going on please?

[TrikkBen]

Could be IAC.

Try this and it will tell you if anything is wrong.

Checking error codes VT/VX

Then find out what the code means and you will know whats wrong.

Ben

[MR_VX]

thanks mate ill try it tomorrow

[TrEnNaVY]

dw about wot i said, obviously i didnt read it in great detail

[MR_VX]

Could be IAC.

Try this and it will tell you if anything is wrong.

Checking error codes VT/VX

Then find out what the code means and you will know whats wrong.

Ben

just wondering where do i check the flashes from is there led's on the ECU????

[TrikkBen]

In the VS the engine light flashes i dunno if its the same.

Ben

[MR_VX]

hmmm can anyone tell me where to lool on a vx?

[accentstencil]

hmmm can anyone tell me where to lool on a vx?

The check engine light flashes.

[MR_VX]

sweet as ill try this all tomorrow thanks heaps fellas

[MR_VX]

Could be IAC.

Try this and it will tell you if anything is wrong.

Checking error codes VT/VX

Then find out what the code means and you will know whats wrong.

Ben

ok i just done it right, put the paper clip in terminals 5&6 turn to on/acc, it flashed 10 times, stoped (1 second) flashed once ( stop 1 second) flashed twice (stoped 1 second) flashed twice (stop 3-4 seconds) it keep repeted for about 7 times before i removed the paper clip can someone tell what code it stands for

[TrikkBen]

doesn't sound like you read the flashes right. It flashes in tens and then one's.

Read this one, it explains it there.

Checking error codes VR/VS (Revised)


Ben

[saundyvx]

Mate your problem is with the ECU because you've changed the air fuel mixture. you'll have to get it tuned

[MR_VX]

maybe i did read it wrong but i did read the same flashes about 7 times.
i took the port and polished plenum and throttle body of and replaced it with the standard ones and it reved normally all good. so i put just the 69mm throttle body back on and it ran ruff around 2600 rpm so again i swaped it for the standard one and at first it ran shit house but the 2nd and 3rd time its all good again so its got me f**ked whats going on and not sure what to do with the aftermarket item i got

[Simonn]

have you tried holding the revs at about 3000rpm for 30 seconds or so to reset the iac valve?

[MR_VX]

no i havent, didnt no i had to, does it actually work tho? ive pulled every thing back on and returned to stock for now but if these works ill put it all back on again

[delcowizzid]

maybe the throttle position sensor is no good on the new throttlebody

[Vt_vic]

did ya try resetting the ecu.take the leads off the battery and starting again

[MR_VX]

i took the TPS & ACI sencers off my old throttle body (only done 65000kms) and used it on the enew one, but that didnt work i have 3 sets of both sencers wouldnt work with any, ill try disconnecting the battrey next time tho

[Jesterarts]

Had the same issue with my VX.



Note the part called 'Adapter'.

Make sure you replaced this correctly when you were putting the TPS into the new TB.

This seems to be the issue in most cases.

Give it a bash, good luck.

[MR_VX]

arrr i think your right mate i did notice it was smaller on the new throttle body conpaired to the old one! should it just pull out of the old one and push into the new one? thanks mate ill give it a try tomorrow!

[Jesterarts]

Yep, it should...

Good luck mate, hope this sorts it for you.

[MR_VX]

yeah me to i think it will fix it tho thanks heaps mate

[Jesterarts]

Any developments?

[MR_VX]

ive been busy with trying to build a house lol so ill try on saturday just incase it doesnt fix it that way ill have all day to try and fit it but ill let you all no

[MattyC]

When i was driving my VT II S and i stopped and parked it wouldnt rev under 2000 but then i turned the engine off and turned it back on and it was fine hah...

never happened again...