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Old 14 Jan 2021, 11:47 pm
MPT MPT is offline
Fresh Cruiser
 
Join Date: Oct 2012
Location: Western NY - Rochester Buffalo Area
Posts: 10
Default Re: Typical TPS range ? - 2005 non-turbo - 210k mi

Ptcruisersteve… Thanks !
We’d heard of the countdowns yet wasn't sure how they worked, so thanks-much…

...Looks like there’s the 85% we heard-about…

If the 85% requirement is true, and if our throttle sensor can’t get to 85% …???
…...
I just rechecked and the max our throttle sensor can do is 75.3% when wide open (operated via gas pedal with engine off & also manually under the hood). During driving the max reading (as-last-checked) is ~63%-65% (floor mats are out of the way)...

Barring some mechanical issue with the throttle system, will a NEW sensor for-sure likely have a better % range…?
(If so, then at least this sensor needs to be replaced; unless we’ve got it installed wrong)

I just checked to see if the throttle is still clean and looked into the throttle body at-rest, and it seems perfectly closed (and clean) - so no dirt etc. hanging it ‘open’ at what live data calls “14.5 %” when at-rest / closed throttle.

Also by back-probing the connector we checked the voltages at the closed throttle position and its 0.25V when closed, and measures 3.75V at the max-open throttle position (which the live data shows as 75% open -which sounds reasonable for a 3.75V value, though the throttle can't open any further).
If our wide open was showing 100% with this sensor it’d probably show a 4.5 value… its like the upper end calibration of this sensor somehow shifted to be only 75% (3.75V), and the lower end (closed throttle plate) is raised to be 15.5% when it should be ~0%... it’s like the whole sensor’s range seems stretched somehow (and beyond the mechanical range of the throttle ).

[:::::IMPORTANT UPDATE:::::

Update removed because verification confirmed the original voltage reports
(If I could figure out how to use strikeouts I would use that vs update-removal )

More to come...!


:::::UPDATE END:::::]


(FYI The speed sensor is smooth and reasonable via the code reader live data and matches the speedometer)

So, aside from a mis-assembly (which I'll check tomorrow), it looks like a new sensor is needed.


RE DRIVE CYCLES:
For what it's worth, the car has always had the P0016 near-term, and we know for a fact the EVAP drive cycle recently changed from “incomplete” to “completed” with the MIL “on” for the P0016.
So, we’re wondering just how “real” the “No MIL requirement” actually is (for drive cycle starts and completions, and maybe for the state inspection computer too ); I’m hoping it’s “not” too critical (and it may depend on the type of cycle too?).

As an aside, thanks for posting the detailed drive cycles; I’ve been trying these (published somewhere) for some time now to get the O2 and CAT to complete to no avail, though all the other cycles have completed.
Without the cruise control and with this possible reduced throttle-% we're wondering if it's having some effect to prevent these these last two cycles from completing…

The thought about engine load being just under the test-start-requirement due to a timing issue is a good one -something to think on...

(Thanks much for all the help & Any further thoughts are always welcomed..!)
__________________
MPT

Silver 2005 Touring ATX , non-turbo, 211K mi (so-far!) - our family is first owner

Western NY - Rochester Buffalo Area

Many needed repairs / worth it / kinda fun... includes control arm, steering rack & K-frame member {each at a different time-!} - self and with local friendly mechanic.

Most notable mod is installing an AirLift(tm) Kit inside the rear springs (for the Boat / trailer !)...

Last edited by MPT; 15 Jan 2021 at 06:42 pm. Reason: Improve accuracy of numerical figures
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