Location of PCV 93 MX-3

V6 Technical/Performance Discussions
User avatar
navymx3
Regular Member
Posts: 97
Joined: December 7th, 2009, 3:32 am
antispam: No
Location: NAS Lemoore, CA
Contact:

Location of PCV 93 MX-3

Post by navymx3 »

i saw this posted somewhere before, but im not sure if it is in the same place as my car. Could someone show me a picture of where the PCV valve for my car is? I saw a pic of someone elses, but guys I talked to at work said that a PCV valve doesnt feed directly into the head of the engine...prove them wrong? yes, id like to.
Jenkins
93 Mazda MX-3 GS V6 24V 5 Speed
User avatar
solo_ryder
Senior Member
Posts: 6289
Joined: October 16th, 2004, 2:01 am
Location: British Columbia

Re: Location of PCV 93 MX-3

Post by solo_ryder »

WAT.

Do you see the PCV valve there on the motor? Yea, that is where it is.

Image

Here is a close up for you just incase

Image
jmdearras
Regular Member
Posts: 164
Joined: October 6th, 2009, 9:40 am
antispam: No
Location: Richmond, Virginia

Re: Location of PCV 93 MX-3

Post by jmdearras »

It's in the valve cover, between the distributor and closest spark plug.
User avatar
navymx3
Regular Member
Posts: 97
Joined: December 7th, 2009, 3:32 am
antispam: No
Location: NAS Lemoore, CA
Contact:

Re: Location of PCV 93 MX-3

Post by navymx3 »

For some reason the computer I am on at work wont let me view the pictures. would you be able to text them to me? or email them? would be easier then waiting till I get home to find out.
93 Mazda MX-3 GS V6 24V 5 Speed
User avatar
Ryan
Senior Member
Posts: 7198
Joined: April 7th, 2008, 1:06 pm
antispam: ~SPAM*SUX~
Location: Manitoba

Re: Location of PCV 93 MX-3

Post by Ryan »

Keday man, its the thing sticking out of the valvecover that isn't a sparkplug wire.
Now with Moderator power!

Black '93 BP RS - wrecked, parted, scrapped.
Green GS - Sold.
Black GS - Summer DD/Race car - Fancy KLZE
Red GS - K8-ATX -> MTX-KLDE - Frakencar. Scrapped
White GS - Rusty. Parts. Scrapped
1997 BMW M3 - my summer baby
2002 BMW 325Xi - sold
2003 Forester Xti - EJ20K swapped.
Feedback
User avatar
navymx3
Regular Member
Posts: 97
Joined: December 7th, 2009, 3:32 am
antispam: No
Location: NAS Lemoore, CA
Contact:

Re: Location of PCV 93 MX-3

Post by navymx3 »

Thats what I figured, but my coworkers keep denying what you guys are saying, its confusing, haha. He says that is a big plug, that cant possibly be on top of the engine is more liekly the EGT. wtf?
93 Mazda MX-3 GS V6 24V 5 Speed
User avatar
navymx3
Regular Member
Posts: 97
Joined: December 7th, 2009, 3:32 am
antispam: No
Location: NAS Lemoore, CA
Contact:

Re: Location of PCV 93 MX-3

Post by navymx3 »

Ok, i just went out and loked at it, and popped it out of the head. it looks just like a PCV valve, and it has a tuber running from it, to my intake manifold...did i find it? and please explain why there is a hose there. I read that it is for the gases that build up, it runs them back into the intake to be used again or something like that?
AND, I looked by my throttle body, and found there was a a cord unplugged from a black cylinder underneath the throttle, could that be causing my rolling idle?
93 Mazda MX-3 GS V6 24V 5 Speed
User avatar
Ryan
Senior Member
Posts: 7198
Joined: April 7th, 2008, 1:06 pm
antispam: ~SPAM*SUX~
Location: Manitoba

Re: Location of PCV 93 MX-3

Post by Ryan »

screw your coworkers. We have been building communal MX-3 specific knowledge for at least 16 years.

Tell them that PCV stands for Postive Crankcase Ventilation, and its a check valve about as big as their penis, and can indeed be located on top of the front valvecover.
Now with Moderator power!

Black '93 BP RS - wrecked, parted, scrapped.
Green GS - Sold.
Black GS - Summer DD/Race car - Fancy KLZE
Red GS - K8-ATX -> MTX-KLDE - Frakencar. Scrapped
White GS - Rusty. Parts. Scrapped
1997 BMW M3 - my summer baby
2002 BMW 325Xi - sold
2003 Forester Xti - EJ20K swapped.
Feedback
User avatar
chrome730
Regular Member
Posts: 419
Joined: November 24th, 2008, 5:46 pm

Re: Location of PCV 93 MX-3

Post by chrome730 »

i would trust these guys more than my co workers. lol theyve help me with all my problems.
It only takes a single voice to start a revolution
User avatar
Ryan
Senior Member
Posts: 7198
Joined: April 7th, 2008, 1:06 pm
antispam: ~SPAM*SUX~
Location: Manitoba

Re: Location of PCV 93 MX-3

Post by Ryan »

Yes, that is your Idle Air Control Valve and would affect your idle.

The nature of an piston OverHeadCam engine allows small ammounts of gasses to escape past piston rings, valve sleeves, and other such things. The PCV allows those gasses to escape without the vacuum created by the engine suck air from the crankcase. Also stops your dipstick from popping out and blowing oil everywhere.
Now with Moderator power!

Black '93 BP RS - wrecked, parted, scrapped.
Green GS - Sold.
Black GS - Summer DD/Race car - Fancy KLZE
Red GS - K8-ATX -> MTX-KLDE - Frakencar. Scrapped
White GS - Rusty. Parts. Scrapped
1997 BMW M3 - my summer baby
2002 BMW 325Xi - sold
2003 Forester Xti - EJ20K swapped.
Feedback
User avatar
navymx3
Regular Member
Posts: 97
Joined: December 7th, 2009, 3:32 am
antispam: No
Location: NAS Lemoore, CA
Contact:

Re: Location of PCV 93 MX-3

Post by navymx3 »

Haha, just read yalls definition..and he went :shrug: "whatever"....lol you guys rock :D and about the IAC, is there anything that can effect that? once I take a pic of it I can get a positive ID of it so yall can know exactly what I am talking about. because 98% of the pics yall post, I cant see, not sure why, maybe because its photobucket and my work comps wont allow access to that site? imageshack or whatever site I can view though...so if yall can put up a pic from there, maybe i can see what you guys are talking about?
93 Mazda MX-3 GS V6 24V 5 Speed
User avatar
navymx3
Regular Member
Posts: 97
Joined: December 7th, 2009, 3:32 am
antispam: No
Location: NAS Lemoore, CA
Contact:

Re: Location of PCV 93 MX-3

Post by navymx3 »

ok, this is the best I can do. I got this pic off the net, its not a pic of MY engine, but I believe it shows what im using.
Image
Not the best quality, I enlarged it and used some MS paint to highlight parts of the engine im curious about. Fill me in? :D
93 Mazda MX-3 GS V6 24V 5 Speed
User avatar
Ryan
Senior Member
Posts: 7198
Joined: April 7th, 2008, 1:06 pm
antispam: ~SPAM*SUX~
Location: Manitoba

Re: Location of PCV 93 MX-3

Post by Ryan »

you have IAC labeld wrong. that, if anything, is your VAF. Is it part of the intake system?

yes to PCV

that CAI is a WAI (warm air intake)

yes to PS
yes to brake
Now with Moderator power!

Black '93 BP RS - wrecked, parted, scrapped.
Green GS - Sold.
Black GS - Summer DD/Race car - Fancy KLZE
Red GS - K8-ATX -> MTX-KLDE - Frakencar. Scrapped
White GS - Rusty. Parts. Scrapped
1997 BMW M3 - my summer baby
2002 BMW 325Xi - sold
2003 Forester Xti - EJ20K swapped.
Feedback
User avatar
navymx3
Regular Member
Posts: 97
Joined: December 7th, 2009, 3:32 am
antispam: No
Location: NAS Lemoore, CA
Contact:

Re: Location of PCV 93 MX-3

Post by navymx3 »

ok, where is my IAC? and how do i get a cold air intake? and what is VAF?
93 Mazda MX-3 GS V6 24V 5 Speed
User avatar
Ryan
Senior Member
Posts: 7198
Joined: April 7th, 2008, 1:06 pm
antispam: ~SPAM*SUX~
Location: Manitoba

Re: Location of PCV 93 MX-3

Post by Ryan »

you can't see pics, so this is impossible.

CAI goes down into fender, below where coolant overflow tank is now.

IAC is... I cannot show you picture, but it is on bottom of throttle body.

Vaf is the airflow meter. Its the thing in the rubber of the intake that has a plug in it. 4 wire? 5?
Now with Moderator power!

Black '93 BP RS - wrecked, parted, scrapped.
Green GS - Sold.
Black GS - Summer DD/Race car - Fancy KLZE
Red GS - K8-ATX -> MTX-KLDE - Frakencar. Scrapped
White GS - Rusty. Parts. Scrapped
1997 BMW M3 - my summer baby
2002 BMW 325Xi - sold
2003 Forester Xti - EJ20K swapped.
Feedback
Post Reply

Return to “V6 Technical/Performance”