O2 sensors on stock manifold
05-19-2003, 02:53 PM
#1
0.0 BAR
Thread Starter
Join Date: May 2003
Posts: 43
O2 sensors on stock manifold
As I will have a custom manifold fitted on my B16A1 (who said turbocharged? 
) I would like to know where I should replace these two sensors:
- on my new exhaust manifold (before the turbo)
- on my downpipe (after the turbo)
Thx!
) I would like to know where I should replace these two sensors:- on my new exhaust manifold (before the turbo)
- on my downpipe (after the turbo)
Thx!
05-19-2003, 10:17 PM
#2
1.5 BAR
Join Date: Dec 2002
Posts: 1,008
Re:O2 sensors on stock manifold
i would keep them mounted in the same areas/configuration as stock. i have a d16y7 that origianally came with a primary in the top of the manifold and the secondary after the cat. when i got a new header it moved the primary to the end of the header under the car and secondary after the cat. at start up the car would stutter/bog unless i let the car warm up for a long time or got into it really deep on the accelerator on my first pull. i think it was because the primary is a heated o2 and moving it from just after the exhaust ports at the head to under the car at the collector made it take too long to heat up and run really rich. since i've gone turbo and moved the primary back to the top of the manifold i have no more bucking/bogging at start up.
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