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Old 12-11-2007, 04:37 PM
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Join Date: Aug 2006
Location: Charleston, WV
Posts: 602
throttle wide open code???

We did a diagnostic check on my 96 E300D today, and the code came back with a throttle error. The car has a slight hesitation and the check engine light is on. When I bought the car, we checked it and the reader stated "throttle wide open", which wasnt possible since it was sitting idle. Anyway, the part the mechanic pointed to was towards the firewall, on the drivers side with the throttle linkage going to it. Anyone had any experience with this or know what this part is?
1996 E300 D
1992 300D
1990 Ford E-350 7.3 Diesel AKA "the Deep Fryer"
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Old 12-11-2007, 05:13 PM
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Join Date: Feb 2004
Location: Walnut Creek, CA & 1,150 miles S of Key West
Posts: 4,874
The part he was referring to is part #104 "Sender". I call it a Throttle Position Sensor.

They don't go bad too often. What was the actual code number you got?
Terry Allison
N. Calif. & S. of Key West

09' E320 Bluetec 77k
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Old 12-11-2007, 05:37 PM
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Join Date: Oct 2005
Posts: 4,263
Mine usually says this too, and isn't having any difficulty.
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Old 12-11-2007, 11:55 PM
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Join Date: Aug 2006
Location: Charleston, WV
Posts: 602
I will have to ask him what the code # was. I dont know what it was. I do know the part he was messing with. If I can get a pic uploaded I will post it.
1996 E300 D
1992 300D
1990 Ford E-350 7.3 Diesel AKA "the Deep Fryer"
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Old 12-12-2007, 12:02 AM
Jeremy5848's Avatar
Registered Biodiesel User
Join Date: Mar 2006
Location: Sonoma Wine Country
Posts: 8,394
Although that part is apparently just a potentiometer, it is very expensive -- between $400 and $500! I've often wondered whether one could just take it apart and clean the contacts or whatever.

Mine does not (yet) throw any codes but does occasionally hesitate at low (parking lot) speeds. When one presses harder on the foot feed the sender finally figures it out and the car lurches ahead, a somewhat disconcerting reaction. One learns to keep a foot close to the brake when it does that.


"Buster" in the '95

Our all-biodiesel family
1995 E300D (W124) . .239,000 miles My car
1996 E300D (W210) . .313,000 miles Wife's car
Santa Rosa population 170,685 (2012)
Total. . . . . . . . . . . . 722,685
"Oh lord won't you buy me a Mercedes Benz."
-- Janis Joplin, October 1, 1970
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