problems after long tube install L98
Thread Starter
Burning Brakes
Joined: Oct 2002
Posts: 1,193
Likes: 1
From: Meadville PA
problems after long tube install L98
installed a set of lingenfelter headers over teh winter (longtubes) .. now that the snow is off in pa FINALLY!! i have run a tank of gas through my 89 .. well the gas milage has dropepd from 21 to 14 !! the car also runs rich and seems to "hunt" for an idle i looked for the obvious vac leaks ect.. i am wondering if i may need a heated o2 or am i looking in the wrong direction.. i have not had the chance to get it on a scanner .. but just have a gut feel its the o2 any one else run into this after a long tube install ? 
Thread Starter
Burning Brakes
Joined: Oct 2002
Posts: 1,193
Likes: 1
From: Meadville PA
ok guys where do i get one of these and how do ya hook them up .. someone above said a tech tip has all the info how do i access that info?? i have used teh search before when it worked is the tech tip area different??
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Le Mans Master
Joined: Jun 2002
Posts: 6,097
Likes: 0
From: High Plains Drifter Fayetteville, AR
Originally Posted by game on
I would call Lingenfelter for advice. They should support you with this problem.
Thread Starter
Burning Brakes
Joined: Oct 2002
Posts: 1,193
Likes: 1
From: Meadville PA
i am sure they would help ... but i had a gut feeling when installing them that the 02 was too far away.. and to be honest i have never replaced it.. so i am gonna install a heated o2 today and go from there... it can't hurt and should be done periodiclly any how.. and by calling them they are gonna suggest a scan of the car to see whats going on and to make sure things are with in the set perameters ..
Advanced
Joined: Oct 2003
Posts: 72
Likes: 0
From: Scranton Pa
Lingenfleter won't help you... period
Has anyone w/an L98 take a look at their site lately? They barely, grudgingly support the LT1 C4 Vette. In any case, I also purchased a set of longtubes from Lingenfelter 3 years ago. They were pushing the Stainless Steel versions at that time. I then had the headers JetHot Sterling coated. I am using the original, standard O2 sensors w/no problems. Idle quality is great. There is, however, one problem which I may have created for myself. I also had the Y-pipe, the cat and the after-cat Y-pipe coated. The only thing I didn't have coated were the polished stainless mufflers. My cat-back system is a B&B Tri-Flow (VERY loud!). The problem? The ceramic coating keeps the exhaust gases SO HOT, that my rear bumper almost caught fire! The paint browned up a little (Arctic White) and the bumper was smoking!!! So I ended up having to reposition the outlets 1"+ from the bumper surface. Other than that, no problems. And it passes emissions w/o the air pump in Pennsylvania.