Honda Car Forum


 

Go Back   Honda Car Forum - Accord Parts Civic Tuning Acura Racing > Discussion > Honda Technical

Reply
 
LinkBack Thread Tools Display Modes
  #1 (permalink)  
Old 31 Oct 2007, 03:39 pm
Junior Member
 
Join Date: Oct 2007
Posts: 1
Default what is manifold absolutely pressure, what is the cause of it.?

The MIL light is on and diagnosed as p0108, which reads as manifold absolutely pressure
Reply With Quote
  #2 (permalink)  
Old 31 Oct 2007, 03:42 pm
Junior Member
 
Join Date: Aug 2007
Posts: 3
Default

Air flow. check air filter and mass flow sensor in throttle body
Reply With Quote
  #3 (permalink)  
Old 31 Oct 2007, 03:45 pm
Junior Member
 
Join Date: Sep 2007
Posts: 7
Default

Basically, it's a measure of intake manifold vacuum, you may have a leak or obstruction, or the map sensor itself could have a problem. You may have to do some additional evaluating with a scan tool.
Reply With Quote
  #4 (permalink)  
Old 31 Oct 2007, 03:48 pm
Member
 
Join Date: Aug 2007
Posts: 93
Default

There is a MAP sensor that reads pressure in the intake manifold. Its readings are used to measure the amount of fuel/air supplied to the engine, particularly this sensor shows load on the engine. They do go bad, especially on fords, gms, and suchlike.
Reply With Quote
  #5 (permalink)  
Old 31 Oct 2007, 03:51 pm
Junior Member
 
Join Date: Oct 2007
Posts: 6
Default

Well the MAP (Manifold Absolute Pressure) sensor is used to monitor intake manifold pressure (engine load). It sends voltage signals to the PCM (Powertrain Control Module) that represent the engines varying load conditions.Maybe you need to test your MAP sensor onlyInspect the rubber fitting from the MAP sensor to the throttle body. Repair as necessary. becareful when testing the MAP sensor, be sure that the harness wires are not damaged by the test meter probes. Test the MAP sensor output voltage at the MAP sensor connector terminal B. With the ignition switch ON, and the engine OFF. Output voltage should be 4 to 5 volts. Test the MAP sensor output voltage at the MAP sensor connector terminal B at a hot, neutral idle speed condition. The voltage should drop to 1.5 to 2.1 volts. Test MAP sensor supply voltage at sensor connector terminal C with the ignition ON. The voltage should be approximately 5 volts Ok you said that your MIL (Malfunction Indicator lamp) light is on so that means theres a possible emission related problemThe MIL gives either a steady or a blinking light.If you have a steady light it means a fault that may cause high engine or evaporative emission.When its a blinking light or flash then its a severe level of engine misfirebut you can't rule out the fact that it can also be a wire malfunction..
Reply With Quote
  #6 (permalink)  
Old 31 Oct 2007, 03:57 pm
Senior Member
 
Join Date: Aug 2007
Posts: 235
Default

Take your Honda to a dealer. Do the smart thing for Honda Quality. Anything else and you are wasting time and money.
Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

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 On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
what manifold would i need to use? bmxdude2087 Acura Technical 2 20 Aug 2007 04:44 pm
Are the brake shims absolutely necessary? Headknocker via CarKB.com Honda 2 6 08 Apr 2006 12:36 pm
Replacement of Manifold Gasket MikeLikes Honda 3 2 17 Jul 2005 11:23 pm
red hot manifold steven Acura 1 27 Jan 2004 12:45 pm
red hot manifold steven Acura 3 23 Jan 2004 12:05 pm


All times are GMT -5. The time now is 02:28 am.


Attribution:
Honda News | Autoblog
Powered by Yahoo Answers




Powered by vBulletin®
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
LinkBacks Enabled by vBSEO 3.6.0 PL2 © 2011, Crawlability, Inc.
HondaCarForum.com is not affiliated with Honda Motor Company in any way. Honda Motor Company does not sponsor, support, or endorse HondaCarForum.com in any way. Copyright/trademark/sales mark infringements are not intended or implied.