Exhaust Back Pressure
Post Fiend
Joined: Oct 2009
Posts: 12,123
Likes: 35
From: N. Fort Worth, tx
simple awnser ebp is checked at koeo and should be with in 0.5 psi of map and baro
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Elder User
Joined: May 2010
Posts: 691
Likes: 0
From: Ohio
Well after playing around today I found out that I had the code wrong to read Exhaust Back Pressure. I guess thats why I thought that 750 psi was very high LOL. Now MAP reads 13.9 and Baro. reads 13.9 EBP reads 14.1. Thanks for the quick help. Is there a range that it should stay in? (LOW to HIGH)
Post Fiend
Joined: Oct 2009
Posts: 12,123
Likes: 35
From: N. Fort Worth, tx
but to make life simple you need an ebp sensor
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Hotshot
Joined: Apr 2010
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From: Saratoga Springs,UT
Got to LOVE It when you make it simple & easy Cheezit
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Logistics Pro
Joined: May 2004
Posts: 3,612
Likes: 883
Probably not, the only reason your back pressure will be affected on a gasser is if you lost the exhaust scavenging effect by installing too large diameter of exhaust. If anything your vehicle will "flow" better without the restriction, but it will make you illegal for emmisions testing.
Post Fiend
Joined: Oct 2009
Posts: 12,123
Likes: 35
From: N. Fort Worth, tx
yes you will have issues. o2 2/1 and 02 2/2 will not read correctly and it will drive your fuel trims. this will cause a loss in mpg and a check engine light along with running to lean.
Lead Driver
Joined: Mar 2010
Posts: 5,505
Likes: 257
From: Woodbridge, Ontario, CA
...... as well as set DTCs for calalysts bank #1 and bank #2 efficiency below threshold.