Open/closed loop

[Bob Valentine]

What makes you say it doesn't go open loop?

When mine's (730/$8D) in PE or Highway the scan tool shows "closed loop",
but closer investigation shows that the Integrator is locked at 128, which
effectivly is open loop.

-> Bob Valentine
-> bob at tecmark.com

At 07:59 PM 12/3/2000 -0800, you wrote:
>I just came back from the track today & i am a bit confused.  i thought
>that when you were past a certain percent TPS (setable via a lookup table)
>that the ecm would go into open loop.  i made 6 WO passes & never once did
>it go into open loop.  
>
>BTW, this is a 7730/$8D ecm.  i don't know what the broadcast code is i
>have not been able to figure that out yet.  
>
>I am going to analyze the data tomorrow, i am pooped.  it is terrible what
>the sun does to you.  i bet it was 75 Deg in the stands & probably closer
>to 80-85 on the track.  you gotta hate those Southern Californians.  
>
>thanks Guys, 
>BW
>
>
>--- Bob Wooten
>--- r71chevy at earthlink.net
>--- 71-91 Camaro
>
>
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