Hey guys, got a Vy wagon on dual fuel the other day
Was running rough since I got her. Have changed plugs
Leads, cleaned MAF, changed TPS and IAC
Along with cleaning throttle body in the process
To find the bottom hose (I believe thus is the purge
Hose) to be around 30cm connected to nothing!!
Now I can't even tell where it came from! I'm assuming
This is the cause of my rough idle/ wanting to stall
At the lights. Can someone please help??
Where do I get a new hose from and where fo I connect it
From throttle body to where??
Cheers
Any pics of where it is? May help with diagnosis. Any other cars you can compare with?
not sure if thoes pics worked. i have a vr wich is no real help. saw another thread saying the other end (not throttle body end) is at the back of the intake manifold?
had a look hard to see anything but i didnt find where is should go![]()
its behind the intake manifold, there should be a cluster of other vacuum hoses that plug into the same area
replace the hose with a single piece of fuel hose running from the throttle body port to the purge valve port bolted to the rear of the manifold on the drivers side . what gap did you set the spark plugs to ?
It's hard to see, but if you keep looking there you will see it. It's a fixed length so it can only be somewhere it can reach
Looking at an ecotec now, behind the drivers side rocker cover is a black box with an electrical plug, that's where the purge hose connects to, there should be 2 hoses there
Found it thanks heaps mate! Plugged it back
In only to start the car again is running better but
Still has a rough idlesounds like it's missing from
The exhaust. Shattered and out if ideas! Thanks
Again for your help mate your a champion. Any other
Ideas as to what it could be?
I would recommend that you regap the plugs to .9 - 1.0 mm and using BP7EFS to reduce back firing
I bought njk plugs that were meant to be 1.5 had problems with idle/miss and found that one was 1.3 Pretty sure they all have to be 1.5 gap
Have you done spark plug leads? When I had my vx, I know I had a miss at wot only from standstill, it was leads, also had a big miss which was the dfi module directly under the coil packs. Just sorce them from a wrecker if you want to save a bit of $$$
Yeh already did the leads didn't really change anything. Also changed the coil packs even tho the original ones seemed to have the correct resistance between terminals! Will try the DFI modul cheers for that!
It was also pointed out that injector under throttle
Body seemed to be leaking petrol (only a tiny bit) you think that could have anything to do with the rough idle?!?
Thanks again bud!