Hydra
Sponsored by:
Sponsored by:

Drivability Issue - In Vacuum issue

 
Old 09-01-2009, 05:05 PM
  #1  
Newb
Thread Starter
 
Join Date: Dec 2007
Posts: 36
Total Cats: 0
Default Drivability Issue - In Vacuum issue

Hi Everyone,

I am having a small drivability issue. At times, my Miata runs a little rough where the car wants to accelerate/decelerate slightly and rapidly. I notice that the turbo gauge indicates that the in vacuum is bouncing up and down a bit. If I put my foot on the clutch and blip the throttle, it sometimes takes care of it for a little while. It drives me nuts. Other than that, the car is running great.

Set up:

01 Miata w/ FMII turbo kit with Hydra

I'm not sure what other information would be helpful.

Thank you for your help.

Greg Savoie
greg9ball is offline  
Old 09-02-2009, 09:06 AM
  #2  
Elite Member
iTrader: (2)
 
Join Date: Jan 2007
Location: Los Angeles, CA
Posts: 8,676
Total Cats: 119
Default

What are your AFRs doing then?
Faeflora is offline  
Old 09-02-2009, 09:46 AM
  #3  
Newb
Thread Starter
 
Join Date: Dec 2007
Posts: 36
Total Cats: 0
Default

Originally Posted by faeflora View Post
What are your AFRs doing then?
Please forgive my ignorance. What are AFRs?
greg9ball is offline  
Old 09-02-2009, 10:52 AM
  #4  
Elite Member
iTrader: (2)
 
Join Date: Jan 2007
Location: Los Angeles, CA
Posts: 8,676
Total Cats: 119
Default

air fuel ratio

what do they look like while you're having issues? you will need to take a log.
Faeflora is offline  
Old 10-30-2009, 10:22 PM
  #5  
Newb
Thread Starter
 
Join Date: Dec 2007
Posts: 36
Total Cats: 0
Default

Originally Posted by faeflora View Post
air fuel ratio

what do they look like while you're having issues? you will need to take a log.
I am sorry for what I am sure are stupid questions. How long a log should I take? What would be considered ideal AFR?
greg9ball is offline  
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
bigmackloud
Miata parts for sale/trade
16
03-03-2019 03:41 PM
nick470
MEGAsquirt
1
09-30-2015 10:32 PM
shooterschmidty
Engine Performance
8
09-30-2015 10:28 PM
interestedofold
Suspension, Brakes, Drivetrain
5
09-29-2015 01:42 PM


Thread Tools
Search this Thread
Quick Reply: Drivability Issue - In Vacuum issue


Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.