MAP Sensor Leak - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


Reply
 
 
 
LinkBack Thread Tools Search this Thread
Old 03-28-2010, 04:59 PM   #1
Junior Member
Thread Starter
 
Join Date: Jan 2008
Location: Central, NJ
Posts: 201
Total Cats: 0
Default MAP Sensor Leak

Finally had a chance to calibrate my sensor and retune my map this week so I went out and bought a vacuum pump.

Is it normal for air to escape this fast? MVI_1818 on Flickr - Photo Sharing!
I tested the gun and tube on my thumb and air didn't escape. I am pretty sure the leak was coming from the sensor it self.

I was barely able to calibrate it. I had to pump it while pressing learn.

The values I got for it were:

Low 16 343
High 300 3500

If the map sensor is leaking, could this explain my higher idle when hot?
PhantomRoadster is offline   Reply With Quote
Old 03-28-2010, 07:31 PM   #2
Senior Member
iTrader: (4)
 
Join Date: Nov 2009
Location: Toronto, ON
Posts: 1,479
Total Cats: 6
Default

Mine never leaked. How much vacuum can that pump generate? If the sensor or line is leaking, then it would create a bit of a higher idle.
dgmorr is offline   Reply With Quote
Old 03-28-2010, 07:55 PM   #3
Junior Member
Thread Starter
 
Join Date: Jan 2008
Location: Central, NJ
Posts: 201
Total Cats: 0
Default

85 kpa
PhantomRoadster is offline   Reply With Quote
Old 03-29-2010, 11:08 AM   #4
y8s
2 Props,3 Dildos,& 1 Cat
iTrader: (8)
 
y8s's Avatar
 
Join Date: Jun 2005
Location: Fake Virginia
Posts: 19,038
Total Cats: 407
Default

that's funny, I was just noticing a similar thing over the weekend.

I hooked my mityvac up to the map sensor to recalibrate and it was damned hard to hold in one spot. it was maybe 1/3 as fast as yours at leaking. I noticed pinching the line made the leak stop.
y8s is offline   Reply With Quote
Old 03-29-2010, 01:01 PM   #5
Junior Member
Thread Starter
 
Join Date: Jan 2008
Location: Central, NJ
Posts: 201
Total Cats: 0
Default

I pinched the line and used a zip tie. It didn't make a difference.
PhantomRoadster is offline   Reply With Quote
Old 04-03-2010, 09:34 PM   #6
Senior Member
 
Join Date: Nov 2007
Location: somewhere in NoVA
Posts: 550
Total Cats: -1
Default

Hmm, I will go out and buy a gauge tomorrow and see what happens...

I stil have little issues here and there but figured out heat is really a problem right now
Prospero is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Project Gemini - Turbo Civic on the Cheap Full_Tilt_Boogie Build Threads 59 Yesterday 09:00 PM
My solution for Oiltemp and Oilpressure input into Megasuirt (MS3) Zaphod MEGAsquirt 41 01-24-2016 01:25 PM
Leaky Wilwoods mx592 Suspension, Brakes, Drivetrain 1 10-01-2015 01:45 AM
In need of base map for stock 1997 brandonbkd MEGAsquirt 0 09-29-2015 12:52 AM
3rd Time's a Charm...hopefully. zephyrusaurai Meet and Greet 2 09-28-2015 11:59 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 10:49 PM.