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Speed Difference - 10 MPH Higher at all Speeds.

Started by irondoor19, June 13, 2017, 10:33:06 AM

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irondoor19

June 13, 2017, 10:33:06 AM
OK:

So after the New ECU (used w warranty from LKQ , Cheap like 125.00) and the
Flash from the Dealer (not SO Cheap)...

The Car is showing 10 MPH Higher at all Speeds above 25..

So 30 is 20 Actual,  100 is 90 Actual VIA GPS... I felt it was off when i was driving it.
called the Stealer Dealer, and they said some crap about tire Size, and did we change the
rims (it Came with 20's) so we are lost....any suggestions from the Group....???
2010 Lincoln MKS, BONE Stock for Now, 2014 3.7L Police, Drop IN K&N,

TopherSho

#1
June 13, 2017, 11:23:06 AM
Quote from: irondoor19 on June 13, 2017, 10:33:06 AM
OK:

So after the New ECU (used w warranty from LKQ , Cheap like 125.00) and the
Flash from the Dealer (not SO Cheap)...

The Car is showing 10 MPH Higher at all Speeds above 25..

So 30 is 20 Actual,  100 is 90 Actual VIA GPS... I felt it was off when i was driving it.
called the Stealer Dealer, and they said some crap about tire Size, and did we change the
rims (it Came with 20's) so we are lost....any suggestions from the Group....???

So the #1 question is when you turn it on and it does the gauge sweep... where doe the mph needle site at idle?
2010 non-pp, 98k miles, 3-bar,  .026 plugs, SNOW-KIT STG1, AJPTurbu tune#35, 15.5+psi
Best 0-60 public road 4.35s
Best 1/4 of 12.61 no DA correction

SHOdded

#2
June 13, 2017, 11:36:01 AM
Does your tuning device show the correct speed?  If so the ICP may need to be recalibrated.
2007 Ford Edge SEL, Powerstop F/R Brake Kit, TXT LED 6000K Lo & Hi Beams, W16W LED Reverse Bulbs, 3BSpec 2.5w Map Lights, 5W Cree rear dome lights, 5W Cree cargo light, DTBL LED Taillights

If tuned:  Take note of the strategy code as you return to stock (including 3 bar MAP to 2 bar MAP) -> take car in & get it serviced -> check strategy code when you get car back -> have tuner update your tune if the strategy code has changed -> reload tune -> ENJOY!

TSS

#3
June 13, 2017, 12:44:45 PM
I'm not at all trying to be smart, but have  you just double checked that you have it to miles per hour and not kilometers per hour?   
2010 Steel Blue Metallic MKS Ecoboost: LME 3-Bar Tuned; tint; 20" Factory rims Permachromed

2017 Summit White Buick Envision Premium AWD 2.0 Turbo
2017 Silver Cadillac XTS V-Sport Platinum  3.6 Twin Turbo; LME tuned.

Brucelinc

#4
June 13, 2017, 02:18:17 PM
Quote from: TSS on June 13, 2017, 12:44:45 PM
I'm not at all trying to be smart, but have  you just double checked that you have it to miles per hour and not kilometers per hour?   

Lol...that was my first thought, too.

irondoor19

#5
June 14, 2017, 08:45:29 AM
OK:

Gauge sweep goes from 0 to 140, AND ends up back @ 0

Set to Miles per Hour, otherwise the Difference would be MUCH greater

How about the rear end ratio, PP versus Non PP....?  IN THE ECU...?

Stump the band..this is a brain buster...
2010 Lincoln MKS, BONE Stock for Now, 2014 3.7L Police, Drop IN K&N,

Brucelinc

#6
June 14, 2017, 10:06:26 AM
2.77 gear for non PP and 3.16 for PP could explain it.

TopherSho

#7
June 14, 2017, 10:24:54 AM
maybe not,  (20 X 1.05) = 21mph X 1.125 = 23mph-ish.   He is reporting 10mph diffs.  It has to be the speed sensor?  Do the sho's have a speed sensor?  wrong voltage back up to the ecu/cluster ?  missing filter or resistor issue ?

If Ford installed it they should fix it for free.
2010 non-pp, 98k miles, 3-bar,  .026 plugs, SNOW-KIT STG1, AJPTurbu tune#35, 15.5+psi
Best 0-60 public road 4.35s
Best 1/4 of 12.61 no DA correction

irondoor19

#8
June 14, 2017, 11:05:48 AM
Quote from: SHOdded on June 13, 2017, 11:36:01 AM
Does your tuning device show the correct speed?  If so the ICP may need to be recalibrated.

tuning Device is Back at SCT getting unlocked due to the ECU lockup,
and when we get it back, we will investigate that
2010 Lincoln MKS, BONE Stock for Now, 2014 3.7L Police, Drop IN K&N,

irondoor19

#9
June 14, 2017, 03:44:20 PM
Quote from: irondoor19 on June 14, 2017, 11:05:48 AM
Quote from: SHOdded on June 13, 2017, 11:36:01 AM
Does your tuning device show the correct speed?  If so the ICP may need to be recalibrated.

tuning Device is Back at SCT getting unlocked due to the ECU lockup,
and when we get it back, we will investigate that


HOOKED UP TO SCANNER: Car is recording actual mileage internally, but Speedo is off,

Did some resets to see if it comes up correct... will be GPS in later today...
2010 Lincoln MKS, BONE Stock for Now, 2014 3.7L Police, Drop IN K&N,

SHOdded

#10
June 14, 2017, 07:07:39 PM
ok, so the IPC needs a calibration update most likely.  Hopefully that is all.
2007 Ford Edge SEL, Powerstop F/R Brake Kit, TXT LED 6000K Lo & Hi Beams, W16W LED Reverse Bulbs, 3BSpec 2.5w Map Lights, 5W Cree rear dome lights, 5W Cree cargo light, DTBL LED Taillights

If tuned:  Take note of the strategy code as you return to stock (including 3 bar MAP to 2 bar MAP) -> take car in & get it serviced -> check strategy code when you get car back -> have tuner update your tune if the strategy code has changed -> reload tune -> ENJOY!

jmr061

#11
June 14, 2017, 11:58:29 PM
Considering it is a used PCM I wonder if the VID was re-written or not.
Jason
16 Edge Sport

jmr061

#12
June 15, 2017, 12:00:54 AM
The PCM calculates the vehicle speed from the transaxle Output Shaft Speed (OSS) sensor input and from the tire size and axle ratio configuration in the PCM Vehicle Identification (VID) block. The PCM provides the Instrument Panel Cluster (IPC) with the vehicle speed data over the High Speed Controller Area Network (HS-CAN) bus. The IPC monitors the vehicle speed input and commands the speedometer with a corresponding movement of the pointer.
Jason
16 Edge Sport

irondoor19

#13
June 15, 2017, 10:40:12 AM
Quote from: irondoor19 on June 14, 2017, 03:44:20 PM
Quote from: irondoor19 on June 14, 2017, 11:05:48 AM
Quote from: SHOdded on June 13, 2017, 11:36:01 AM
Does your tuning device show the correct speed?  If so the ICP may need to be recalibrated.

tuning Device is Back at SCT getting unlocked due to the ECU lockup,
and when we get it back, we will investigate that

Mileage as indicated via: GPS and Speedo
                                   17          20
                                   25          30
                                   33          40
                                   43          50
                                   52          60
                                   60          70
                                   70          80
                                   78          90
                                   88         100

WE will be getting the SCT tuner back tomorrow.....



HOOKED UP TO SCANNER: Car is recording actual mileage internally, but Speedo is off,

Did some resets to see if it comes up correct... will be GPS in later today...
2010 Lincoln MKS, BONE Stock for Now, 2014 3.7L Police, Drop IN K&N,

SHOdded

#14
June 15, 2017, 10:50:03 AM
So not a fixed mph lag.  About 12% off.  This the GPS on your phone? Ford's GPS is known to need recalibration sometimes.

All in all i say the IPC needs recalibration.
2007 Ford Edge SEL, Powerstop F/R Brake Kit, TXT LED 6000K Lo & Hi Beams, W16W LED Reverse Bulbs, 3BSpec 2.5w Map Lights, 5W Cree rear dome lights, 5W Cree cargo light, DTBL LED Taillights

If tuned:  Take note of the strategy code as you return to stock (including 3 bar MAP to 2 bar MAP) -> take car in & get it serviced -> check strategy code when you get car back -> have tuner update your tune if the strategy code has changed -> reload tune -> ENJOY!
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