Toyota's " Death Pedal " autopsy

[69MyWay]

Here is a picture of the magnet and sensor.

[69MyWay]

Here you can see the white tip on the assembly.

[James OLC]

The whole "sticking pedal assembly" arguement just does not make sense. There has to be more to it - either in the sensor, the software, or with EMI.

I mean really... if the pedal sticks due to friction (a) your RPMs won't increase to WOT - it would simply stick at part throttle where you were at and (b) you could lift the pedal up and unstick it (at least in principal). And when you did crash (assuming you did) the pedal would be stuck in the position it was in and be pretty easy to identify, document, and show the world.

[Matt@BOS]

Originally Posted by musclecarjohn

Ford's systems currently default to idle at any sign of a problem,not WOT like Toyota's seem to do.

John, do you know more about this? My dad has an '05 Mustang that has in intermittent engine revving problem. It is an auto and when stopped at a light in drive, it has revved up to 2500 rpms on its own, and wanted to go, despite having a foot on the brake. The Ford dealership refuses to look at the idle air control valve, or anything else for that matter, but just recently hooked up a data logging device to the OBDII port.

Matt

[Bow Tie 67]

Originally Posted by 69MyWay

Here is a picture of the magnet and sensor.

This does look like a good candidate for emi. How does the Denso differ in the magnetic pickup, would you say its less susceptable to emi?

[69MyWay]

Originally Posted by Bow Tie 67

This does look like a good candidate for emi. How does the Denso differ in the magnetic pickup, would you say its less susceptable to emi?

Different shaped sensor - but works the same way (all magnets - in the pedal and throttle body).

[buickfunnycar.com]

Originally Posted by 69MSA

John, do you know more about this? My dad has an '05 Mustang that has in intermittent engine revving problem. It is an auto and when stopped at a light in drive, it has revved up to 2500 rpms on its own, and wanted to go, despite having a foot on the brake. The Ford dealership refuses to look at the idle air control valve, or anything else for that matter, but just recently hooked up a data logging device to the OBDII port.

Matt

I don't know Matt,but I can ask service for ya.

I don't believe for a minute the pedal is the main issue here,same as I didn't believe the floormat cover up that preceeded it.

[69MyWay]

Originally Posted by musclecarjohn

I don't know Matt,but I can ask service for ya.

I don't believe for a minute the pedal is the main issue here,same as I didn't believe the floormat cover up that preceeded it.

I hear ya...but I have seen first hand how the All Weather mat can absolutely jam the pedal. The sad thing is, many of the complaints are coming from people with no mats in the car at all.

I did see one this week that was a fatality. The really sad thing, in a 2009 Camry the owner had the stock carpet and a aftermarket mat stacked on top.

[69MyWay]

Here is a cell phone pic of a Denso.

In this picture, see the green assembly on the left. In the center there is a square opening. There are a pair of magnets embedded in the square. Look at the assembly on the right. The silver round part in the middle is the sensor. As the pedal is pressed the magnets rotate around the sensor. It is a bit off-set so that the magnetic field can increase on the sensor as the pedal is pushed.

I have noted the magnets appear to be stronger in the Denso.

[Fluid Power]

If it is a sensor issue, what is the purpose of installing the metal shim?

Darren