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Originally Posted by 1989toyotasupraandpickup
I believe i have to remove it to calibrate it
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For the most accurate calibration, yes. There are other ways but I'm not going to go into them as results vary and I want to be as sure as possible that yours is properly calibrated.
Quote:
Originally Posted by 1989toyotasupraandpickup
would i be better off using the analog output on the wideband to make sure that the stock narrowband sensor is not bad.
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As I said, if the wideband can emulate a narrowband output on the analog out then I would remove the stock narrowband and use the wideband to supply the ECU with the OX signal permanently.
Quote:
Originally Posted by 1989toyotasupraandpickup
i heard alot of people talking about the vsv's under the intake manifold go bad and cause a vacuum leak.
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If it's a concern then test them, it's simple.
Quote:
Originally Posted by 1989toyotasupraandpickup
Knock sensors should give a code if its detecting knock correct?
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No.
Quote:
Originally Posted by 1989toyotasupraandpickup
I saw somewhere on the internet how to test the afm meter with the ossciliscope. however you spell that. i believe it is a square wave. thats all i know.
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Oscilloscope. I don't know where that info has been posted online. If you find it please post a link.
Quote:
Originally Posted by 1989toyotasupraandpickup
caps dont look like they are bad. any specific ones that would leak. i mean you could tell if they were leaking by looking at the board.
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Yeah, they're often easily identified by the expanding casing and/or leaking electrolyte. I don't think this is your problem though.
First things first, check the wideband's power and ground points and recalibrate it. Then, if you have time, setup the narrowband emulation on the analog output and connect it to the ECU in place of the oem sensor's input. THEN post back.