FG xr6t little to no boost, new battery, stalling

[El Andrew]

1. Can't remember, but just follow the lines to the turbo compressor cover and to the wastegate. That's where you'll want to disconnect them anyway.

2. Yes. Is located on the throttle body elbow.

[Parralegend]

Sorry I just wanted to clarify the direction. I think I got it right but I also now have a spare solenoid to test. So that boost pressure sensor is just before the bov. I didnt know if that was a map/maf 

[k31th]

yes, that's the BPS.

 

the T-MAP (Temperature & Manifold Absolute Pressure) sensor is the one that actually matters, though, and that's on the inlet manifold.

 

The Boost Control Solenoid is the one connected to the turbocharger front-housing via a rubber line and also a rubber line going back to the wastegate actuator.

[Parralegend]

Thankyou for the reply. I was just making sure there wasnt another sensor on the charge pipe that I couldnt see as I see people refer to it as the map sensor and the fault refers to boost pressure sensor. Ive changed out the battery to a supercharge gold and changed over the solenoid and still nothing on boost. I'm going to clean the map sensor and also try a different bov.

 

Failing that I will try a boost leak test but im also interested to see if the wastegate is actually seizing considering that had come up as a fault as well. Sorry I havent had alot of time to follow up with my findings but im determined to get to the bottom if it if nothing more for someone else that might come across this.

[Parralegend]

Alrighty about 98% progress. So I had found a service manual and read through the diagnostics ford would follow for the fg in regard to turbo.

 

Basically all things pointed to a faulty sensor or a boost leak again. As im about to take a look at the map Idecided to give the bov a pull on the pipe and the throttle body pipe poked its head out like nothing.

 

Cleaned it up, performed a pcm reset and now its driving angry again albeit slightly off but boosting hard. Will do a oil change because it used 130km of fuel from 40km of driving in the last day so no good.

 

My mistake? I guess originally there was a boost leak after I done the battery change and when I spent a good 6 hours slowly going through the intake system, changing the spark plugs and losing/getting sockets stuck in the bore I was inclined to make mistakes. Once I got everything back on and ready to fire up I forgot to plug in the MAP which stalled it and from there on I didnt think anything off a obvious lose pipe even though the error codes I was receiving can be related to it.

 

I plan on doing a boost leak test to try find other leaks to try get it 100% and also have a look at the manifold and check for anything else that's possibly loose.

 

My backgrounds obviously nowhere near mechanical so hopefully their is a few simple lessons that someone else might learn from this experience :).

 

thankyou for all the replies as well much appreciated. If I find anthing else that transforms the car back to 100% ill add to this as well.

 

 

cheers

[k31th]

good outcome, actually finding the boost leak sorta accidentally like that haha

[Parralegend]

Ive read a billion posts with everyone saying that one pops off heaps so when I think I done the right thing but either left the pipe loose or didnt tighten enough I feel like a ripe idiot haha.

[k31th]

finding the fault yourself makes you much more than an idiot, so I reckon you're well on your way haha