Why does an exhaust leak cause performance problems? Because the Oxygen Sensor is under reading the output? Just from a layman's knowledge it would seem as if the faster the exhaust leaves the engine the better. Why would an exhaust leak before the muffler hurt performance? Paul ----- Original Message ----- From: "Jay L Snyder" <Jay.L.Snyder@USA.DUPONT.COM> Newsgroups: groupstudy.vanagon Sent: Monday, November 27, 2000 2:51 PM Subject: Fix Those Exhaust Leaks!
> I fixed a small leak in my '85 exhaust system. It was leaking at a cracked > weld on the pipe that runs between the y-pipes and the cat., ( the pipe > that has the O2 sensor threaded into it). The crack was right after the > y-pipes come together and about 6" before the O2 sensor. I could hear a > slight leak, but I didn't know where it was until I was crawling around and > I spotted the tell-tale carbon trail. To make a long story short, it has > noticeably improved the mid band power and now pulls much more smoothly up > through second and third gear. BTW, the part came from the Bus Depot and > fit perfectly between the existing pieces. I am guessing the Digijet was > adding extra fuel to compensate for this leak? > > Jay '85 Westy > |
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