TPS and Fuel Trim readings are HIGH! Help!!

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10-11-2009, 08:11 PM

#11

moosestang

6th Gear Member

Join Date: Sep 2006

Location: Gainesville, FL

Posts: 11,278

Quote:

Originally Posted by cdown16

Well, I have not solved the TPS issue yet but the fuel trim levels, now after being tuned, have dropped to 3-6%. Gained 30RWHP after being tuned by HP Tuners software. Still trying to figure out the TPS though.

The TPS being 77% is normal. It's been confirmed by several people using an aeroforce gauge. Not sure how 157db is reading TPS position, but i'm sure yours is operating normally.

10-14-2009, 12:43 AM

#12

GT Bob

3rd Gear Member

Join Date: Apr 2007

Location: Pa

Posts: 763

TPS readings are in fact normal. HP Tuners software shows it as a % open but thats not actually what the reading is. Talked with Bill over at HP Tuners about this a few times, and it's more of just a position setting that Ford programed into the pcm... It's been a while but it may have even been degree's from full closed