Generation III External Engine LS1 | LS6 | Bolt-Ons | Intakes | Exhaust | Ignition | Accessories
Sponsored by:
Sponsored by:

Fast 102 map sensor issue

Thread Tools
 
Search this Thread
 
Old 05-12-2016, 10:06 PM
  #1  
TECH Apprentice
Thread Starter
iTrader: (4)
 
slowwssix's Avatar
 
Join Date: Oct 2014
Location: toledo ohio
Posts: 303
Likes: 0
Received 0 Likes on 0 Posts
Default Fast 102 map sensor issue

I dropped my car off for the final tune for the new setup and my tuner called me and said the map sensor is seeing no vacum...the car isn't running very good and is smoking and I'm hoping this is why the car is fouling out plugs like it's it's job and I was told when the map sensor sees no vacum or there is no signal to it it thinks it's at wot all the time...when I installed the intake I drilled the hole out for the map sensor on the back of the intake because I didn't like the way it looked on the front...what would make the map sensor pop out of the back of the intake? Have any of you had this issue? If so what can I do to prevent the sensor from coming back out...I'm not looking forward to taking the intake back off and I don't want to do this again
Old 05-12-2016, 11:40 PM
  #2  
TECH Addict
iTrader: (66)
 
blk00ss's Avatar
 
Join Date: Feb 2007
Location: Jasper, AL
Posts: 2,366
Likes: 0
Received 5 Likes on 5 Posts

Default

I've got some pictures showing how I dealt with that in my thread. First page.

https://ls1tech.com/forums/generatio...ers-added.html
Old 05-13-2016, 12:02 AM
  #3  
TECH Apprentice
Thread Starter
iTrader: (4)
 
slowwssix's Avatar
 
Join Date: Oct 2014
Location: toledo ohio
Posts: 303
Likes: 0
Received 0 Likes on 0 Posts
Default

Thank you what a pain in the rear I don't want to take that intake back off at all
Old 05-13-2016, 06:39 AM
  #4  
TECH Fanatic
iTrader: (20)
 
themealonwheels's Avatar
 
Join Date: Jan 2011
Location: North Houston
Posts: 1,912
Received 77 Likes on 56 Posts

Default

If you don't like it on the front, you're going to have to take the intake off any time you suspect your map. I relocated mine to the front for that reason. Not that the sensor fails often, but if I suspect mine, I pop the hood and voila.
Old 05-19-2016, 02:35 PM
  #5  
Launching!
iTrader: (5)
 
smws6ta's Avatar
 
Join Date: Jan 2010
Posts: 237
Likes: 0
Received 2 Likes on 2 Posts

Default

I had to relocate mine to the front for the same reasons. Showed up ready to tune and the sensor was crushed from tilting the motor to install the tranny.
Old 05-19-2016, 03:36 PM
  #6  
TECH Addict
iTrader: (66)
 
blk00ss's Avatar
 
Join Date: Feb 2007
Location: Jasper, AL
Posts: 2,366
Likes: 0
Received 5 Likes on 5 Posts

Default

Originally Posted by smws6ta
I had to relocate mine to the front for the same reasons. Showed up ready to tune and the sensor was crushed from tilting the motor to install the tranny.
Lol. Could have still left it back there using my method.
The following users liked this post:
73CamaroLT (10-24-2019)
Old 05-20-2016, 12:18 AM
  #7  
TECH Enthusiast
iTrader: (2)
 
mannyman84's Avatar
 
Join Date: May 2007
Location: Hawthorne CA
Posts: 638
Likes: 0
Received 1 Like on 1 Post

Default

I had that issue with mine, I had a pretty bad intake leak and there was low to no vacuum. double check and make sure no leaks... is it a new sensor? I would suggest running it in the front, I have mine in the front and just bought an extended harness they sell.. plug and play but just make sure to drill the front hole and plug the back of the mani.. good luck
Old 05-20-2016, 09:59 AM
  #8  
Launching!
iTrader: (5)
 
smws6ta's Avatar
 
Join Date: Jan 2010
Posts: 237
Likes: 0
Received 2 Likes on 2 Posts

Default

I had to pull the intake anyways. I learned the hard way that those nuts on the back of the intake can loosen and fall off. I had hell trying to get it tuned. At low rpms it was all over the place, get above 3000 it pulled like a mule. It wasn't till I pulled the intake to relocate the map that I found those nuts all came off. Talk about a massive vacuum leak.

I replaced the seal, new nuts and some locktite then back to my tuner. This time success.
Old 05-20-2016, 10:40 AM
  #9  
TECH Addict
iTrader: (66)
 
blk00ss's Avatar
 
Join Date: Feb 2007
Location: Jasper, AL
Posts: 2,366
Likes: 0
Received 5 Likes on 5 Posts

Default

Originally Posted by mannyman84
I had that issue with mine, I had a pretty bad intake leak and there was low to no vacuum. double check and make sure no leaks... is it a new sensor? I would suggest running it in the front, I have mine in the front and just bought an extended harness they sell.. plug and play but just make sure to drill the front hole and plug the back of the mani.. good luck
This works better and keeps the clutter from the front...


Old 05-22-2016, 12:13 PM
  #10  
TECH Apprentice
Thread Starter
iTrader: (4)
 
slowwssix's Avatar
 
Join Date: Oct 2014
Location: toledo ohio
Posts: 303
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by blk00ss
This works better and keeps the clutter from the front...


Do you have a part number for that fitting
Old 05-22-2016, 01:37 PM
  #11  
TECH Addict
iTrader: (66)
 
blk00ss's Avatar
 
Join Date: Feb 2007
Location: Jasper, AL
Posts: 2,366
Likes: 0
Received 5 Likes on 5 Posts

Default

Originally Posted by slowwssix
Do you have a part number for that fitting
It's in my thread.
Old 05-23-2016, 09:57 AM
  #12  
Moderator
iTrader: (4)
 
Darth_V8r's Avatar
 
Join Date: Jul 2014
Location: My own internal universe
Posts: 10,446
Received 1,837 Likes on 1,145 Posts
Default

Here was my solution to the map sensor. Only cost me a fender washer.



Mounted the MAP vertically using a washer stack to help hold it in place. Pretty simple solution to the firewall interference
Attached Thumbnails Fast 102 map sensor issue-img_1024.jpg  



Quick Reply: Fast 102 map sensor issue



All times are GMT -5. The time now is 04:46 PM.