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Yes. lambda probe = lambda

I have 2, one on the manifold and one just behind the CAT

and they are both installed? the distance of the engine at wich one and other were before are mantained? maybe its because the cat is bad. check your service connector for errors.

I place one back into the top of the manifold. I got a spare probe hole at the end of the manifold, which now is close. The second probe are place behind the exhaust which hasn;t been touch or swap. I think it is the cat as well dooe nearly 115000 miles now~
but the setup with a new CAT and ek4 exhaust will be gd?

Hi,
can anyone mind to measure their EJ9 1.4 stock exhuast pipe diameter for me? the section just before connecting the backbox please
THanks

it's 42mm

I see, so a EK9 backbox won't fit then . 5xmm right for the EK9.

Ek4 is 42mm?

ek4-->b16a must be using bigger diameters. But no big deal, you can customise it man very cheap.

Hi all,
Finally getting the car back today. Replace a new CAT, but there is not probe hole like the stock CAT. so the mechanic just left out the 2nd probe. When I driven back today. I smells some fumes. and lost power in the top end. Then I open the bonet after. Inspect it a bit and found out that the 2nd lamba probe nuts on the manifold is missing. Should I place the nut back (once I find one)or put the 2nd lamba back on there?
Picture coming in 30 min

ek4 - 51mm in some sections !