Boost loss - Stock Fd3
04-19-09, 02:02 PM
#1
Rotary Enthusiast
Thread Starter
Boost loss - Stock Fd3
I have had a small oil leak from somewhere around the compressor housing on the rear turbo of my stock twin set-up for some time. Turbo seems clean and tight inside though.. They generally work fine but just over boost a bit if not careful where the actuator fills up with oil I think?
Anyway.. today I was coming home and had my foot down over taking something and heard a sort of balloon bursting sound and felt the car lurch and slow in acceleration. I then noticed afterwards.. When I accelerated my first stage turbo was working fine and getting full boost and as soon as the solenoid opened for the second stage to kicked in I lost all boost and could hear air wooshing from somewhere. (I loose even the boost fomr the 1st turbo). I have had all the major pipes off I can see and check the Re-circ valves and they appear finie. You cannot blow through tem when you take them off the car. To loose all boost from both turbo's it must be something pretty major? If the actuator was stuck holding the wastegate open on the rear turbo could that cause it to stall and the boost to pass back out trough it? The odd bit is you get full boost fine on the 1st turbo so that rules out any problems with the main pipework or intercooler anyway.. It must be something before the soleniod that opens before the first turbo.
Please can someone shed any light on this!
I am saving up to go single just need to keep rolling till then!
Thank you
Lee
P.S.
I am working on getting a new turbo but funds are a little pushed at the mo!
Anyway.. today I was coming home and had my foot down over taking something and heard a sort of balloon bursting sound and felt the car lurch and slow in acceleration. I then noticed afterwards.. When I accelerated my first stage turbo was working fine and getting full boost and as soon as the solenoid opened for the second stage to kicked in I lost all boost and could hear air wooshing from somewhere. (I loose even the boost fomr the 1st turbo). I have had all the major pipes off I can see and check the Re-circ valves and they appear finie. You cannot blow through tem when you take them off the car. To loose all boost from both turbo's it must be something pretty major? If the actuator was stuck holding the wastegate open on the rear turbo could that cause it to stall and the boost to pass back out trough it? The odd bit is you get full boost fine on the 1st turbo so that rules out any problems with the main pipework or intercooler anyway.. It must be something before the soleniod that opens before the first turbo.
Please can someone shed any light on this!
I am saving up to go single just need to keep rolling till then!
Thank you
Lee
P.S.
I am working on getting a new turbo but funds are a little pushed at the mo!
04-19-09, 02:20 PM
#2
Rotary Enthusiast
Thread Starter
For a little extra info incase it helps.. The air sounds a little like its going back through the system internally rather than venting to atmosphere.. Although its hard to say for certain. I think it's possibly something to do with the CRV?? When I tested it.. I pulled the main pipe off and left it connected to the car and you could blow down it.. So I thought that was it. But as soon as I pulled off the litte vaccum hose it sucked air in and was closed so I could no longer blow through it?? Not sure if that's how it should work??
Help please.
Thanks
Lee
Help please.
Thanks
Lee
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