| Nov 27, 2005 - 10:33 PM | Forum: Engine/Transmission/Maintenance · Post Preview: #360292 · Replies: 5 · Views: 2,237 |
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Enthusiast Joined Nov 27, '05 Currently Offline 
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QUOTE(celicarus @ Nov 27, 2005 - 10:02 PM) [snapback]360274[/snapback] QUOTE(suzistoy @ Nov 27, 2005 - 8:50 PM) [snapback]360269[/snapback] QUOTE(celicarus @ Nov 27, 2005 - 9:45 PM) [snapback]360267[/snapback] possible motor mount or map/maf sensor - similar situation happened not to long ago - rpm was going up and down within 2 and under Ok, I'm really dumb when it comes to any motor built past 1980. What's a map/maf sensor. Could be a motor mount, some idiot ran me off the road and into a hill 2 months ago. here's what a map sensor looks like - and its located firewall top left corner --  Definition: Refers to a manifold absolute pressure sensor, a variable resistor used to monitor the difference in pressure between the intake manifold at outside atmosphere. This information is used by the engine computer to monitor engine load (vacuum drops when the engine is under load or at wide open throttle). When the engine is under load, the computer may alter spark timing and the fuel mixture to improve performance and emissions. QUOTE(suzistoy @ Nov 27, 2005 - 10:30 PM) [snapback]360292[/snapback] QUOTE(celicarus @ Nov 27, 2005 - 10:02 PM) [snapback]360274[/snapback] QUOTE(suzistoy @ Nov 27, 2005 - 8:50 PM) [snapback]360269[/snapback] QUOTE(celicarus @ Nov 27, 2005 - 9:45 PM) [snapback]360267[/snapback] possible motor mount or map/maf sensor - similar situation happened not to long ago - rpm was going up and down within 2 and under Ok, I'm really dumb when it comes to any motor built past 1980. What's a map/maf sensor. Could be a motor mount, some idiot ran me off the road and into a hill 2 months ago. here's what a map sensor looks like - and its located firewall top left corner -- Definition: Refers to a manifold absolute pressure sensor, a variable resistor used to monitor the difference in pressure between the intake manifold at outside atmosphere. This information is used by the engine computer to monitor engine load (vacuum drops when the engine is under load or at wide open throttle). When the engine is under load, the computer may alter spark timing and the fuel mixture to improve performance and emissions. |
| Nov 27, 2005 - 9:50 PM | Forum: Engine/Transmission/Maintenance · Post Preview: #360269 · Replies: 5 · Views: 2,237 |
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Enthusiast Joined Nov 27, '05 Currently Offline
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QUOTE(celicarus @ Nov 27, 2005 - 9:45 PM) [snapback]360267[/snapback] possible motor mount or map/maf sensor - similar situation happened not to long ago - rpm was going up and down within 2 and under Ok, I'm really dumb when it comes to any motor built past 1980. What's a map/maf sensor. Could be a motor mount, some idiot ran me off the road and into a hill 2 months ago. |
| Nov 27, 2005 - 9:39 PM | Forum: Engine/Transmission/Maintenance · Post Preview: #360263 · Replies: 5 · Views: 2,237 |
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Enthusiast Joined Nov 27, '05 Currently Offline
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I have a '95 yellow Celica ST. I noticed when I was driving up a hill I go up everyday that my car wasn't moving at it's usual speed. When I came to a light it was vibrating like crazy and when the engine got warmed up it vibrated even more. RPM's are running 1 and under, no engine light. Was fine when I drove home yesterday. Help. |
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