Hi,

Started to fit my down pipe today on my 93 wrx ra. After spending several hours trying to undo all the rusted bolts i then noticed that the old pipe and new have different sensors. The old one is lower down and has 2 wires while the new pipe has the sensor at the top with 3 wires. If i do not remove the top one it catches on the intercooler bracket. Any ideas which one to use as i'm back at work on Friday and need it back together tomorrow. I have posted a few pics if that helps.

Cheers,
Andrew

 

hi

the bottom wire is a temp senser

the top one is a lamda senser


you shouldn't need both

as your lamda senser should be in the headers

but you can use it as a bung

 

Exellent cheers. There is no hole for the bottom one can i do away with that one as well.

 

Yup, as you have no cat you no longer need a cat-on-fire sensor.

Some people prefer to have the lambda sensor (3-wire) in the downpipe rather than the headers incase it disintegrates. If in the headers it will damage turbo - but its a pretty slim chance really and I wouldn't worry.

Try to keep the top turbo heat shield, you may need to take a hack saw to it to get it to fit but I think it is well worth it to keep engine (and intercooler) temps down.

 

Cheers mate you have saved me a lot of worrying before bed time!! now all i have to do is get that broken turbo stud out in the morning.

Andrew

 

now thats another thread !!!!!!