Vacuum Leak - EGR Pipe?

[StockoVRWagz]

Dfi and coil packs, iac, maf sensor are good as I've put them in my other car for trouble shooting, also fuel pump is brand new too also done the filter and leads are probably due to be changed so will do them after the valley cover gaskets have been done. Could even be dodgy tps I guess.

 

[wrx884]

leads are due for a change? then check the resistance on each lead and make sure they are still in spec, this could be ur missing issues ur getting if one or more leads are open or have too high of a resistance.

 

[devilly]

did you use a brand new gasket for the egr value has to be a silver one from holdens $3-$5. NO silicone used as it's made within the gasket.

if your taking plenum off it's $25 for the brand new rubber kit to go back on.

check the iac is set properly and the o'ring isn't leaking.just put your hand on top of it while it's idling.

maybe also check accelerator cable as well

 

[strgas]

try spraying brake cleaner or the like at the injectors where they meet the manifold to check if the injector seals are leaking too , if the revs increase when the spray hits the injector then likely the seals are leaking .

 

[sidecar55]

There's a plastic vacuum pipe that easily comes off the rubber connectors.
Look under the throttle body or the other end on the drivers side at the back of the cylinder head near the bell housing.

 

[StockoVRWagz]

Update: new leads went in tonight and now it's running on 5 on petrol but mint still on gas..

Yeah new gasket for egr valve, purge hose is still on, swapped and cleaned iac with my other vt while troubleshooting that car too. Checked if injectors were leaking. Valley cover kit just arrived so that's going in this weekend.

Im wondering if it could be a vacuum leak near where the gas line connects to the throttle body?

 

[StockoVRWagz]

hold on, the mrs has said its been stalling on her and I put it down to the gas convertor freezing up as it needed a bit of coolant. (valley cover lol)

but just checked error codes again and its thrown a code 47, so could it be the cas is on its way out? but then it would be **** on gas too though?

 

[StockoVRWagz]

Fixed!
Replaced the gasket, couldn't do the egr pipe or pcv valve but all fixed. Runs on petrol perfect now and vacuum leak has gone.

Cheers for the help everyone

 

[StockoVRWagz]

haha nevermind. it's back to 'normal'. Typical VT lol. definetly sucking air from around the throttle body somewhere. oh well been like it for 2 years might just leave it till i get rid of the heap of ****.