[Gmecm] Re: Tracker TBI Problems still

[not a webot]

 I run mine on the edge of knock as well. I didn't think to mention that.
I'm glad it passed. Where are you located?

On 6/12/07, Cowen <captain_krill at yahoo.com> wrote:
>
> Pat,
> No, I never did get to the bottom of it.  In the end,
> it passes AirCare and runs fine, the mileage is back
> up.
>
> I "fixed it" by fluke.  I was messing around with a
> SnapOn Modus, watching the O2 sensor etc, and I
> couldn't find anything wrong.  I thought I'd see what
> would happen if I messed with the timing - and it
> started running better.  Normally, reducing the timing
> will clean up HC, but in this case, severely advancing
> the timing made it run better! It's supposed to be
> around 6 deg BTDC at idle, check connector shorted, if
> I recall (been awhile).  Right now, it's reading
> aroung 22 degrees!!  I ended up advancing until it
> pinged, then retarding it until smooth.  It has the
> cleanest emissions it's had since we bought it 4 years
> ago.
>
> Now the strange thing is, my mom's got the same car,
> and it too has responded well to severely advancing
> the timing.  That seems to eliminate the "rotated
> harmonic balancer" theory...  Hers passed Aircare with
> flying colours too.
>
> By now, you should be thinking "This idiot doesn't
> know how to check timing.  He's got one of those
> adjustable timing lights, or he's put the pickup on
> the wrong lead, or he doesn't know the check connector
> from a hole in the ground."  Well, I've had three
> other people look into this for me, with their own
> tools, and all of us seem to have the same probelm
> timing this one particular type of car!
>
> So, the car works fine (although it still goes a bit
> rich on a subzero start up and idles on 3 cylinders
> for about 20 seconds), but I don't understand what
> changed or why to cause the problems in the first
> place (it happened on it's own last August), or why
> the timing "seems" so advanced (when logically it
> can't be that far off factory!!)
>
> Soon it's for sale!  The End.
>
> **********************END TRANSMISSION**********************
>
>
>
>
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