NOT BOOSTING pls help.
#1
Hollywood RX-7
Thread Starter
Join Date: Apr 2006
Location: Hollywood
Posts: 25
Likes: 0
Received 0 Likes
on
0 Posts
NOT BOOSTING pls help.
I just finished with a vacuum job on my 94, changed gaskets, new radiator and it is'nt boosting at all. need some suggestions on what problem is. idle is solid 900.
engine doesnt sputter. the whole reason i did the vacuum job was to solve the boost problem i have. now the problem is still present any suggestions will help, thank you. (yes i have a boost gauge)
P.S. my bro said it could be the wastegate stuck open,
is there anyway to bypass wastegate.
engine doesnt sputter. the whole reason i did the vacuum job was to solve the boost problem i have. now the problem is still present any suggestions will help, thank you. (yes i have a boost gauge)
P.S. my bro said it could be the wastegate stuck open,
is there anyway to bypass wastegate.
#3
What's your point ?
Join Date: Feb 2001
Location: Gainesville, Fla.
Posts: 3,573
Likes: 0
Received 0 Likes
on
0 Posts
The waste gate being stuck open could be part of it. Why don't you have a vacuum chamber ? I believe you need it. Doesn't do much good to change all the hoses if you don't know what the problem is, if it wasn't a hose problem to begin with. Since you have a boost gauge what is your primary boosting to ? If you don't have at least 7psi. on the primary you won't have any boost on the secondary. Have you done any reading on how this system works ? If you don't have an idea of what to look for then suggestions won't get you very far.
#4
Hollywood RX-7
Thread Starter
Join Date: Apr 2006
Location: Hollywood
Posts: 25
Likes: 0
Received 0 Likes
on
0 Posts
My primary is'nt boosting, im running all engine right now, i was just hoping for a quick answer or suggestion to look the right way. if wastegate is part of problem, what other underlying problems could there be. is it possible some of my solenoids are not working causing the problem? Thx for your reply and help bro.
#6
Lives on the Forum
Join Date: Dec 2001
Location: San Lorenzo, California
Posts: 14,716
Likes: 0
Received 8 Likes
on
8 Posts
1. You actually asked if you could bypass the wastegate.
+
2. You couldn't find the vacuum chamber so you plugged it?
=
take your car to someone who knows what they are doing and let them fix it.
+
2. You couldn't find the vacuum chamber so you plugged it?
=
take your car to someone who knows what they are doing and let them fix it.
Trending Topics
#8
Lives on the Forum
Join Date: Dec 2001
Location: San Lorenzo, California
Posts: 14,716
Likes: 0
Received 8 Likes
on
8 Posts
We understood what you did the first time you said it. You can't just plug stuff and then wonder why it doesn't work!!!
Like I said above, take the car to someone who can and will fix it properly.
Like I said above, take the car to someone who can and will fix it properly.
#9
Senior Member
Join Date: Jul 2006
Location: Stow, Ohio
Posts: 582
Likes: 0
Received 0 Likes
on
0 Posts
even if the wastegate was stuck open, wouldnt you still be able to hit 7 psi of boost, atleast if you gave it WOT in like 3rd gear so it could have time to build? the wastegate doesnt bypass all the exhaust
#11
Moderator
iTrader: (7)
If the wastegate was stuck open (very unlikely) or the connecting rod popped off the wg valve arm (somewhat possible) then you'd have no boost. All the flow would bypass the turbos.
The 7-8 psi deal is when the wastegate is running without a boost controller. Then the wg spring regulates boost to 7-8psi.
Dave
The 7-8 psi deal is when the wastegate is running without a boost controller. Then the wg spring regulates boost to 7-8psi.
Dave
#14
Hollywood RX-7
Thread Starter
Join Date: Apr 2006
Location: Hollywood
Posts: 25
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by dgeesaman
Without a vacuum chamber your solenoids won't function.
The vacuum chamber is tucked underneath/between the power steering pump and alternator. Get it connected.
Dave
The vacuum chamber is tucked underneath/between the power steering pump and alternator. Get it connected.
Dave
#15
Lives on the Forum
Join Date: Dec 2001
Location: San Lorenzo, California
Posts: 14,716
Likes: 0
Received 8 Likes
on
8 Posts
Well, if you're going to work on it yourself....do it right. Don't cut corners because you run into a tough spot. There are nice color big-size vacuum diagrams as well as the factory service manual you can download for free. No excuse for not doing things right. If you get stuck, put a picture up here and we'll help.
#17
Senior Member
Join Date: Jul 2006
Location: Stow, Ohio
Posts: 582
Likes: 0
Received 0 Likes
on
0 Posts
tehn again teh vac chamber has only one hose going to it. if you want to test a different chamber before installing it just to be sure, you can always just route the hose up the the new chamber and set it somewhere easy to access. I mean..u can use just about any chamber that will hold vacuum and has about the same volume.
Thread
Thread Starter
Forum
Replies
Last Post
Jeff20B
1st Generation Specific (1979-1985)
73
09-16-18 07:16 PM
rx8volks
Canadian Forum
0
09-01-15 11:02 PM
rx8volks
Canadian Forum
0
09-01-15 10:46 PM