Boost Guage Sensor
Thread Starter
Senior Member
Joined: Jul 2005
Posts: 525
Likes: 0
From: Atlanta
Thank you! So if the vac line going to it is clear ... but my guage isn't working... Where should I start. The engine is making boost and goes like hell.... Im just not seeing it on the dash ...
My concern is that the ECU isn't seeing the boost - However I am not sure it would run so well if the ECU wasn't seeing it.
How do I test?
My concern is that the ECU isn't seeing the boost - However I am not sure it would run so well if the ECU wasn't seeing it.
How do I test?
HAILERS
Joined: May 2001
Posts: 20,563
Likes: 27
From: FORT WORTH, TEXAS,USA
You get a meter out and go to the ECU. You insert a paper clip or equiv into the backside of the boost sensor input wire at 2B. A brown/red wire in the middle plug.
It should read about 2.3 to 2.7 vdc. If it reads almost 5vdc.........then the wire is open b/t the sensor and the ECU pin 2B.
That's for a series four car.
It should read about 2.3 to 2.7 vdc. If it reads almost 5vdc.........then the wire is open b/t the sensor and the ECU pin 2B.
That's for a series four car.
Thread Starter
Senior Member
Joined: Jul 2005
Posts: 525
Likes: 0
From: Atlanta
Hailers - Thank you - It appears that where the sensor gets it vacume is plugged ... I put a T in the line where the BOV gets its vacume and the guage came to life --- It isn't reading correct ... however it is working now. It is only showing maybe 2 needle widths over 0. I know the engine is making more power than that because it pulls like hell on boost.
Do I just need to put a boost guage in?
Do I just need to put a boost guage in?
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