Mazda Rotary Club

General => General Technical => Topic started by: FD3S-UK-8000 on December 12, 2011, 07:28:21 PM

Title: Boost control Solenoid location?
Post by: FD3S-UK-8000 on December 12, 2011, 07:28:21 PM
Hi everyone, i\'m new to the FD. I have got a slight problem which i think might be lead to Boost control solenoid. Only problem is, can anyone tell me where about its located so that i could test/check it? I have searched it but can\'t find any information on where it is. Someone has told me theres 2 different ones? =S if possile if someone can include a picture that would me much apprecieated.
Kind Regards.
Title: Boost control Solenoid location?
Post by: philiwily on December 12, 2011, 09:23:12 PM
I & J in the diagram, they are where they are in the diagram, more likely a burst hose or faulty one way valve
(http://i233.photobucket.com/albums/ee155/philiwilyrx7/vacuum_hose_diagram2.jpg)
Title: Boost control Solenoid location?
Post by: a.tapos on December 12, 2011, 10:39:35 PM
Its not obvious in the pic but theyre litterally the only solonoids you can see right in front of you when you look at the engine from the front,on inlet manifold behind black vac chamber
Title: Boost control Solenoid location?
Post by: davehg on December 12, 2011, 11:06:40 PM
items I and J bolted to the front of the plenum... i have a spare set if needed
Title: Boost control Solenoid location?
Post by: FD3S-UK-8000 on December 13, 2011, 12:23:27 AM
Thank you so much for the info. i will have a look after work tomorrow.
Davehg, if i need one, i will be in contact. Thank you.
Title: Boost control Solenoid location?
Post by: FD3S-UK-8000 on December 13, 2011, 12:35:23 AM
Oh, and the problem i\'m having is, intermittant boost pressure..
its got worse this weekend.. i can only boost to 0.6 bar max from both turbos.... but now and then i would be able to get the normal 0.9 bar.... so i\'m hoping theres something wrong with the solenoids.. =(
Title: Boost control Solenoid location?
Post by: a.tapos on December 13, 2011, 09:46:03 AM
sounds like a boost leak if its both turbos at max boost
Title: Boost control Solenoid location?
Post by: FD3S-UK-8000 on December 13, 2011, 12:57:12 PM
Humm I have a BOV on it... Do you think that could be sticking open?
Title: Boost control Solenoid location?
Post by: a.tapos on December 13, 2011, 01:30:34 PM
def a possibility,blank it or fit a standard reliefvalve to rule it out,
Title: Boost control Solenoid location?
Post by: FD3S-UK-8000 on December 13, 2011, 01:32:18 PM
Ok, I\'ll Try that tonight . Thanks.
Title: Boost control Solenoid location?
Post by: FD3S-UK-8000 on December 13, 2011, 02:59:37 PM
By the way, are there any known boost leak points?
Regards.
Title: Boost control Solenoid location?
Post by: a.tapos on December 13, 2011, 10:28:54 PM
Quote from: FD3S-UK-8000;802404By the way, are there any known boost leak points?
Regards.

the short pipe that connects the turbos to the ic piping is prone to splitting and leaking so are normally replaced early,also the hoses going to the bov/relief valves,it can be hard to recreate fault without load,
also double check jubilee clips and condition,its not normally a hard thing to fix when you know whee to look,could slso be the turbos themselves.
Title: Boost control Solenoid location?
Post by: FD3S-UK-8000 on January 13, 2012, 07:32:21 PM
Thanks for all the help! I think i have fixed the problem now. Its the CAT. took it off and it was all broken up inside.. got a straight thru on it now, now hunting for a apexi power FC!!!