Problem adjusting TPS

[Menko Johnson <menkoj@xxxxxxxxx>]

I'm having some trouble adjusting my TPS and needed some input.  My 87
4Runner has been idling poorly, bad gas mileage and hesitating.  I pulled
the following codes: 2,5,10.  It was suggested that I adjust the throttle
position sensor.  Here's my problem:

I was able to adjust sensor so that I get the correct resistance for the
first 3 tests listed in the manual

throttle closed
.57mm (I measured at .56)
.85mm (measured at .86)

But when I do the VTA-E2 and the Vcc-E2 tests with the throtle wide open, I
have no resistance at all.  If I close the throttle and open it slowly, I
have resistance that climbs to about 1.9 KOhms when the throttle is 1/4
open and then it cuts out to 1.  I tried to adjust the full range of the
sensor and still was unable to get a reading with full open throttle.

Can anyone tell me what this means?  This TPS is only about 5 months
old.  Should I attempt to adjust the stop screw to change the position of
the throttle?

Any help is much appreciated.

Ps- mail me direct since I'm in digest mode

Thanks

Menko
- ----------------------
Menko Johnson
Worthington United Soccer Club, Girls 89 & 91
http://www.eteamz.com/worthingtonunited
wusoccer@mail.com
menkoj@yahoo.com
(614) 447-0712


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