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No Gas Pedal Response-Car Will Not Move: SOLVED!!!!

pmassey31545
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Re: No Gas Pedal Response-Car Will Not Move

Post by pmassey31545 » Tue Jul 11, 2017 3:22 pm

Changed CVT fluid and filters. No change on the car so of to the dealership it goes the first chance they have an opening...unless someone here has some aage wisdom.
2007 Limited AWD
2009 Ford Flex SEL, 2002 F150 Lariat Supercrew, 2005 Kawasaki 1500 Classic, 1999 Toyota Camry

dmckmc
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Re: No Gas Pedal Response-Car Will Not Move

Post by dmckmc » Tue Jul 11, 2017 4:48 pm

i'll take a stab. P2104 TAC forced idle is a failure mode effects management (FMEM) mode and the PCM thinks something is wrong and is FORCING idle. So when the car is running, the PCM is limiting the movement of the butterfly. So what is telling the PCM something is wrong? Possible causes include: open or short in multiple accelerator pedal position (APP) sesor circuits, damaged APP sensor, damaged powertrain control module (PCM). P2104 is an informational DTC and can be set in combination with a number of other DTC's which are causing the FMEM.

The dealer can read the voltages of the APP and Throttle Control Throttle Position Sensor at fully applied and fully released positions.

if it is not APP or throttle position sensor then it is probably short or open of the TACM harness to the PCM or even a problem with the PCM itself.

there, that was my stab at it

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Re: No Gas Pedal Response-Car Will Not Move

Post by Webmaster » Tue Jul 11, 2017 9:20 pm

https://www.obd-codes.com/p2104 for some additional reading.

pmassey31545
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Re: No Gas Pedal Response-Car Will Not Move

Post by pmassey31545 » Wed Jul 12, 2017 3:59 am

dmckmc wrote:i'll take a stab. P2104 TAC forced idle is a failure mode effects management (FMEM) mode and the PCM thinks something is wrong and is FORCING idle. So when the car is running, the PCM is limiting the movement of the butterfly. So what is telling the PCM something is wrong? Possible causes include: open or short in multiple accelerator pedal position (APP) sesor circuits, damaged APP sensor, damaged powertrain control module (PCM). P2104 is an informational DTC and can be set in combination with a number of other DTC's which are causing the FMEM.

The dealer can read the voltages of the APP and Throttle Control Throttle Position Sensor at fully applied and fully released positions.

if it is not APP or throttle position sensor then it is probably short or open of the TACM harness to the PCM or even a problem with the PCM itself.

there, that was my stab at it
I told my wife yesterday I thought it was something electrical. Gonna be expensive I reckon.
2007 Limited AWD
2009 Ford Flex SEL, 2002 F150 Lariat Supercrew, 2005 Kawasaki 1500 Classic, 1999 Toyota Camry

pmassey31545
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Posts: 232
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Re: No Gas Pedal Response-Car Will Not Move

Post by pmassey31545 » Wed Jul 12, 2017 4:03 am

Webmaster wrote:https://www.obd-codes.com/p2104 for some additional reading.
Good info.

Leaning toward a short, PCM or a wire I missed/messed up while doing my original ground wire cleaning. I have looked over it 40 times though.

Gonna see if I can find a wiring diagram and make sure I didn't miss a ground somewhere.
2007 Limited AWD
2009 Ford Flex SEL, 2002 F150 Lariat Supercrew, 2005 Kawasaki 1500 Classic, 1999 Toyota Camry

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Re: No Gas Pedal Response-Car Will Not Move

Post by Webmaster » Wed Jul 12, 2017 7:50 am


xvert
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Re: No Gas Pedal Response-Car Will Not Move

Post by xvert » Wed Jul 12, 2017 8:38 am

1. U0401:Try cleaning the CVT (and PCM) connectors with a special spray. Once It helped me
2. P2112+P2104:
Did you rotate this bolt? This bolt, as I heard, can not be touched. The result is jamming the flapper.
(foto from mustangclub)
Image
Image
Stopped by Autozone last night and ordered a new throttle body
Are you sure of the quality of purchased TB? Such a replacement had to solve the problem.
3. P0942:
Try to compare the data (at idle) of my car with yours. My car has no errors, but I'm waiting for some parts for replacement.
Engine
Image
CVT
Image
I tested APP https://www.youtube.com/watch?v=lbO6XTChcEQ
Image

pmassey31545
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Re: No Gas Pedal Response-Car Will Not Move

Post by pmassey31545 » Wed Jul 12, 2017 12:01 pm

Thanks for the replies and suggestions.

@xvert...your software seems a lot more sophisticated than mine. As of right now it is being towed to my local mechanic that says he has full diagnostic capabilities. He's come through in the last on other vehicles.

Will update when I know something.
2007 Limited AWD
2009 Ford Flex SEL, 2002 F150 Lariat Supercrew, 2005 Kawasaki 1500 Classic, 1999 Toyota Camry

pmassey31545
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Re: No Gas Pedal Response-Car Will Not Move

Post by pmassey31545 » Wed Jul 12, 2017 3:17 pm

xvert wrote:Are you sure of the quality of purchased TB? Such a replacement had to solve the problem.
Just got a voicemail from the mechanic. They said tests show that the TB IS bad. So this may lend some creedence to you quality statement. But why? I just changed the darn thing.

I went through the relearn procedure. But maybe it has to be reprogrammed also. I don't know. Gonna see what the mechanic says.
2007 Limited AWD
2009 Ford Flex SEL, 2002 F150 Lariat Supercrew, 2005 Kawasaki 1500 Classic, 1999 Toyota Camry

pmassey31545
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Posts: 232
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Re: No Gas Pedal Response-Car Will Not Move

Post by pmassey31545 » Thu Jul 13, 2017 5:01 am

I called the shop today and explained what all I've done to the car. Told him I changed the TB a few days ago with no affect.

He said he just looked at the preliminary codes and said he'd dig a little more. Wasn't aware I changed the TB already. So short story is...I was about to lay $670 for a 'try' that may not have fixed the problem. Glad I called the guy.
2007 Limited AWD
2009 Ford Flex SEL, 2002 F150 Lariat Supercrew, 2005 Kawasaki 1500 Classic, 1999 Toyota Camry

pmassey31545
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Posts: 232
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Re: No Gas Pedal Response-Car Will Not Move

Post by pmassey31545 » Mon Jul 17, 2017 11:30 am

Well, after further testing the mechanic tells me that the PCM is bad. He says he is confident and one hundred percent sure that the PCM is the problem. So he's going to change that out and reprogram it and then we will know for sure.
2007 Limited AWD
2009 Ford Flex SEL, 2002 F150 Lariat Supercrew, 2005 Kawasaki 1500 Classic, 1999 Toyota Camry

pmassey31545
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Posts: 232
Joined: Sat Feb 18, 2017 7:23 am

Re: No Gas Pedal Response-Car Will Not Move: SOLVED!!!!

Post by pmassey31545 » Thu Jul 27, 2017 6:13 pm

Got the FS back today. $817.59 later-a new PCM and reprogram and it's good to go. So in the end it was the PCM...go figure.
2007 Limited AWD
2009 Ford Flex SEL, 2002 F150 Lariat Supercrew, 2005 Kawasaki 1500 Classic, 1999 Toyota Camry

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mmsstar
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Re: No Gas Pedal Response-Car Will Not Move: SOLVED!!!!

Post by mmsstar » Fri Jul 28, 2017 11:08 am

How much was the part, and how much was labor? Was it a new part or a reconditioned part?
Drove an 06 LTD FWD from July 08 to August 10, moved on to a 2011 Flex

pmassey31545
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Re: No Gas Pedal Response-Car Will Not Move: SOLVED!!!!

Post by pmassey31545 » Fri Jul 28, 2017 1:25 pm

Part was $426.01.

Rest was $84.50 labor, $150 programming, $65 towing, $55 testing, $3 haz mat, and of course tax.
2007 Limited AWD
2009 Ford Flex SEL, 2002 F150 Lariat Supercrew, 2005 Kawasaki 1500 Classic, 1999 Toyota Camry

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Splicer
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Re: No Gas Pedal Response-Car Will Not Move: SOLVED!!!!

Post by Splicer » Tue Aug 01, 2017 9:12 pm

Glad you got it going again! You should be good to go for some time now...
2007 Freestyle Limited FWD 302,000+ miles 8)
2004 Escape XLT FWD 260,000+ :)
2006 Escape Hybrid AWD 125,000+ :mrgreen:

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