Boost problem solved

Clarky · February 12, 2008, 12:36:07 PM

Found my first boost problem, ie no boost on second turbo, the culprit, the check valve on the pressure chamber, thing is it was a fairly new check valve, so even new valves can go faulty.

ro284 · February 12, 2008, 04:38:04 PM

Was this one of the Mazda check valves hamc? i have sets of the ones from america if you get stuck.
Bob

Clarky · February 12, 2008, 07:07:33 PM

No it was the ones from America, i had a spare one thanks for the offer anyway

civicboy28 · February 15, 2008, 01:32:58 PM

I have the same problem and Jit has suggested the check valve. i hope it cures it when we have a look this weekend.

Bobbit · February 15, 2008, 01:37:43 PM

Quote from: civicboy28I have the same problem and Jit has suggested the check valve. i hope it cures it when we have a look this weekend.

If not check the solenoids, i had this prob and was a faulty solenoid.

civicboy28 · February 15, 2008, 07:38:14 PM

how do i check them? just out of interest.

ro284 · February 15, 2008, 08:09:35 PM

Blow job mate! you should only be able to blow one way. one way valves,

civicboy28 · February 15, 2008, 08:41:36 PM

so im going to kiss my fd this weekend lol.....i hope it doesnt want to do tongues.

N777CK T · May 22, 2008, 01:21:37 AM

Mine is doing the same thing I think!
Only 0.5 Bar on second turbo?

Where is the check valve? How much do they cost?
What is the pressure chamber?

JohnP · May 27, 2008, 12:35:39 PM

i had same problem, found it wasnt even the check valve in the end, just a pipe blown off the pressure chamber.

JohnP · May 27, 2008, 12:37:47 PM

http://www.turborx7.com/images/Technical/vacuum_hose_diagram2.jpg

pressure chamber is mid right on the diagram. Its loacted almost exactly in the middle of you engine bay, just behind the strut brace. usually black, plastic, approx 6" across, 2" deep. has 2 small pipes/hoses coming off it.