[Supras] FW: Auto Trans & Oxygen Sensor Questions

[Sean Cavanaugh]

Using an LC-1 controlled wideband sensor makes a VERY noticeable improvement. in addition to giving a wideband output for tuning, it provides a much cleaner narrowband signal to the stock ECU. My old 87 n/a went from an ALMOST glass idle at 750-800 to a dead smooth idle as low as 450-500. the software that connects to the LC-1 provides for you to use a laptop as an O2 sensor gauge and datalog so you do not have to buy any more expensive tools for the job.

do NOT connect the wideband output to the stock ECU, use the narrowband output for that.

-Sean

> Date: Tue, 13 May 2008 07:43:56 -0700
> From: supr91tt at yahoo.com
> To: wellner.christian at navy.mil; supras at supras.com
> Subject: Re: [Supras] Auto Trans & Oxygen Sensor Questions
> 
> My Innovate LC1 wideband is installed in the stock location with one of the analog outputs programmed for narrow band which is connected to the ECU. 
> 
> hth,
> Rockey 91T
> 
> 
> ----- Original Message ----
> From: "Christian, Skip" <wellner.christian at navy.mil>
> To: supras at supras.com
> Sent: Tuesday, May 13, 2008 10:09:42 AM
> Subject: [Supras] Auto Trans & Oxygen Sensor Questions
> 
> Group,
> 
>     Questions are for my '86 MA70 Supra (N/A) automatic (daily
> driver).
>     Does the valve body have to be removed to replace the #2 and
> Lock-Up solenoids ?  Also, has anyone experienced and intermittent #2 &
> Lock-Up solenoids ?  I'm asking because I don't want to spend the big
> bucks (about $165 each) for these solenoids if the problem is something
> else.  #2 solenoid passes the resistance test, but the Lock-Up solenoid
> fails.
>     If a wide band oxygen sensor is hooked up to the factory
> computer (using the wide band connections), will everything work
> correctly ?  Might be a waste, but wonder if it will work.  From what I
> know/read, the N/A Supras have no full throttle enrichment.  So, except
> when cold, the N/As run on the oxygen sensor all the time.  If anyone
> knows differently, please let me know.
> 
> Thanks, Skip
> '86 MA70
> 
> P.S.  What's the highest number of miles anyone has achieved with a 7M
> powered Supra without rebuilding the engine (valve job OK) ??  I'm
> trying to get 300K (hope, hope).
> 
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> 
> 
>       
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