[Gmecm] Tracker TBI Problems overcome!

[Programmer]

Hmmm....have you checked the cam/crank synch (belt).
That'd almost compute to a tooth -- and it'll still run.

Sorry I missed out on the 'donating' drama, Steve...just got back from the 
Yucatan and the chicken pizza pyramids...Do we prepay things to keep the 
i-net guys happy for a few more years ?

Lyndon.

----- Original Message ----- 
From: "Cowen" <captain_krill at yahoo.com>
To: <gmecm at diy-efi.org>
Sent: Thursday, February 08, 2007 1:18 PM
Subject: [Gmecm] Tracker TBI Problems overcome!


> Well!  Thanks for all your advice folks, but we were
> all wrong!
>
> I got to be the Guinea pig trying out a brand new
> SnapOn Mobis scanner on Tuesday, and it confirmed the
> O2 sensor is showing about 4 crosscounts at 2500 RPM.
>
> At the same time, I rechecked the timing, shorting the
> check connector etc.  It turns out it was somewhat
> advanced, so I retarded the timing to stock.  The car
> ran worse than ever!  Ah ha!  Something I did had an
> effect!
>
> On the way home, I advanced the timing repeatedly
> until I was getting preignition under moderate load,
> then backed it off a bit.  It now runs much better,
> appears to be getting good mileage again, and passed
> AirCare.  In fact, the CO went from 14.3g/km to
> 10.4g/km.  It still think I can just barely percieve a
> bit of an "unsmoothness" under accel, but maybe I'm
> paranoid.
>
> So, I rechecked the timing.  It says it's about 26deg
> BTDC!  Supposed to be around 8deg.  I even tried a
> second timing gun!  Apparently the timing mark no
> longer represents TDC.  I can't imagine how that would
> be...
>
> As a final note, I have been playing with three of
> these cars (Mom's, sister's, wife's) over the last
> three months, and ALL THREE had dead gaskets in the
> TB, including chunks missing on two of them!
>
> So thanks for your help and suggestions!
>
> Duncan
>
>
> **********************END TRANSMISSION**********************
>
>
>
>
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