still more 90tq advice needed

[JShadzi at aol.com]

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<<Thinking about the O2 sensor, I'm wondering if I
should use the location on the exhaust downpipe
instead of on the cat where the stock 90q location is.
Currently only 2/3 of the exhuast is going through cat
(big leak before). Where do you 90tq guys measure O2,
at the cat or downpipe ?>>

Yes, locate it in the downpipe right after the turbo...though, that by itself
wouldn't cause all the problems you're having, assuming the installation is
correct, that's not a terrible location.

> <<I'm also using a new coolant temp sensor, so I should
> be OK there. I'll check it too though.>>

You sure its the right one, make sure its the black "dual temp" sensor, it
has two sensors inside it, one for the ingition ECU and one for the fuel.
Might be worth throwing in the original to make sure...that's why whenever I
do a conversion like this on a running car, I don't repalce any known working
items.

Javad