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MAP and Barometer Sensors on 1994 Pro Boss Printed From: CorrectCraftFan.com Category: General Correct Craft Discussion Forum Name: Common Questions Forum Discription: Visit here first for common questions regarding your Correct Craft URL: http://www.CorrectCraftFan.com/forum/forum_posts.asp?TID=48010 Printed Date: April-25-2024 at 11:53pm Topic: MAP and Barometer Sensors on 1994 Pro Boss Posted By: sandro.zaal Subject: MAP and Barometer Sensors on 1994 Pro Boss Date Posted: September-05-2019 at 9:27am Hi. There are two sensors MAP and Barometer located over each other ( MAP is lower and Barometer is upper). They both have a pipe for hose. I noticed, that only one (MAP) has a hose connected to the throttle body. Barometer is just not connected. Is it OK..? or there should be a splitter which connects these two sensors to the throttle body. Any ideas..? Thanks Replies: Posted By: KENO Date Posted: September-05-2019 at 10:20am sandro.zaal wrote: Hi. There are two sensors MAP and Barometer located over each other ( MAP is lower and Barometer is upper). They both have a pipe for hose. I noticed, that only one (MAP) has a hose connected to the throttle body. Barometer is just not connected. Is it OK..? or there should be a splitter which connects these two sensors to the throttle body. Any ideas..? Thanks The MAP sensor is sensing engine vacuum and the barometric sensor is sensing pressure outside the engine. The system compares these readings to adjust operating parameters like timing and fuel flow so you don't want them connected together The barometric sensor is OK just open to the atmosphere as it is right now, or in other words that's how it should be Posted By: sandro.zaal Date Posted: September-06-2019 at 6:23am Thanks for quick respond. Still chasing unstable idle. Changed idle control valve recently. Same :( Can bad MAP sensor affect on idling..? https://youtu.be/wDB2I8m9xBE" rel="nofollow - Look at this video: Thanks Posted By: gun-driver Date Posted: September-11-2019 at 3:26pm Yes it could but it could also be a vacuum leak. This shows how to do a generic test on your MAP sensor, refer to the reference section on CCF for the manual and voltages https://axleaddict.com/auto-repair/Bad-MAP-Sensor-Symptoms-and-Testing" rel="nofollow - https://axleaddict.com/auto-repair/Bad-MAP-Sensor-Symptoms-and-Testing Posted By: sandro.zaal Date Posted: September-17-2019 at 11:12am gun-driver wrote: Yes it could but it could also be a vacuum leak. This shows how to do a generic test on your MAP sensor, refer to the reference section on CCF for the manual and voltages https://axleaddict.com/auto-repair/Bad-MAP-Sensor-Symptoms-and-Testing" rel="nofollow - https://axleaddict.com/auto-repair/Bad-MAP-Sensor-Symptoms-and-Testing Im afraid you are right ! There is a leak between the throttle body and the engine. The massive piece of gasket is missing. Going to make a test this week. Thanks.!

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