Fail safe engine mode/ stalling out

why double post same question? (no turbo right?,GDI it is.
DOHC or SOHC engine version here. twin cam or single.?
your not in the USA , as benzine here is gasoline and in EU it is petrol so do not sniff the benzine, (Lol ,grin)
not one bit of proof the Throttle body is bad (I bet NOT)
The gas pedal is a throttle.
newer cars have TBW, throttle by wire, means electric motor driven throttle. and yes the do fail but the PCM tells you it did or did not.
All shops on earth scan the PCM first , so can you, do it or get it scanned or omg even buy the tool for $100.
evidence.
car engine cranks ok, GrrrrrGRRRR sounds hear for 20 years but not now?
ok starter works but engine fails top start or stalls fast. and RPM gauge goes to 0 RPM means stalled.
ok engine runs RPM 800 hot or 1500 cold are normal
ok I step on the GAS (means throttle pedal)
and engine RACES fast RPM to 2500 is easy to do.<??????
okay, I lift right foot and step on the brake pedal and shift to DRive or reverse and car drives normal but not today, i have gross engine power lost. or transmission will not upshift to all gears.(DRIVE)
if a manual (stick) box you shift the gears not it.<< pure love me.

if only power loss(engine power) loss that is far far more complex
even up to 25 shop tests to find it, or more. FATE rules here
what will be, will be. 1 step and 1 test at a time. we can post all tests but that be silly lacking full evidence not told.

this engine (both) has timing belt on the cam
if it fails at 60,000miles as they all love to do , the cam slips. time.
and power flags. (loss)
or worse valves hit piston tops and the end iS now BOOM.

60k miles is 100kmeters. miles driven on this belt.

I decode your post as Throttle pedal acts dead or partially./

key on scan the PCM, first.
using a scan tool that works in our UNSTATED COUNTRY.
USA OBD2.
EU, EOBD
japan , JBOD
and vastly more world wide. never post lacking country or you will get wrong answer even all , even mine. (learn that)
good luck sniffing dah benzine./

Radiator cooling fans not working? The ECM is protecting the engine by shutting it down.

It should be noted that the ETC system includes a warning indicator (wrench light) on the instrument cluster that illuminates when a fault is detected. Faults are accompanied by DTCs and may also illuminate the malfunction indicator lamp (MIL).
Torque Based Electronic Throttle Control (ETC)
Overview
The Generation II (Gen II) torque based electronic throttle control (ETC) is a hardware and software strategy that delivers an engine output torque (via throttle angle) based on driver demand (pedal position). It uses an electronic throttle body, the PCM, and an accelerator pedal assembly to control the throttle opening and engine torque. The ETC system replaces the standard cable operated accelerator pedal, idle air control (IAC) valve, 3-wire throttle position sensor (TPS), and mechanical throttle body.
Torque based ETC enables aggressive automatic transmission shift schedules (earlier upshifts and later downshifts). This is possible by adjusting the throttle angle to achieve the same wheel torque during shifts, and by calculating this desired torque, the system prevents engine lugging (low RPM and low manifold vacuum) while still delivering the performance and torque requested by the driver. It also enables many fuel economy/emission improvement technologies such as variable cam timing (VCT) (deliver same torque during transitions).
Torque based ETC also results in less intrusive vehicle and engine speed limiting, along with smoother traction control.
Other benefits of ETC are:

• Eliminate cruise control actuators.
• Eliminate idle air control (IAC) valve.
• Better airflow range.
• Packaging (no cable).
• More responsive powertrain at altitude and improved shift quality.
• DO you know what electronic throttle control is ?

014 Electronic Throttle Operation

Fail safe is TPS sensor. When you go in fail safe the vehicle give a set amount of RPM and no throttle response the rule of thumb in fail safe is APP1 and APP2 does not agree the goal is to protect the catalytic convertor. So if the transmission was at fault you dont over rev to end up burning the Cat. Or over rev to break the engine It all boils down to a throttle body assembly as the solution

I understand all you said

Without the vehicle and a fresh
diagnostic approach, I personally
don't think any internet ideas will help

You still have misfires, that are spiking the PCM &
TACM on the throttle body and putting it
into ETC Fail Safe.

Most likely the ETC Fail Safe (Electronic Throttle Control)
Various Codes for the Throttle Body will be present

Before you replace the Throttle Body because of a failed
TACM (Throttle Actuator Control Motor) Spray the throttle
inlet and plate with CRC Throttle Body Cleaner

The Failsafe can also occur from a really bad COP Ignition
Coil spiking the PCM (computer) and coming back on both
sides of the TPS Sensor. You then loose throttle plate
position and thus shut down or go only 6 mph

Hello! Fail safe mode is when the vehicle's computer detects a serious problem an allows you to "limp" off the road or highway safely.

Fail safe mode on a Jaguar is mainly caused by a dirty and gummed up throttle body. The throttle body on your auto has a protective coating, so you can not use just any cleaner. It requires a throttle body cleaner that states "safe to use with a protective coating". The butterfly valve in the throttle body will actually "stick out". This causes fail safe mode to kick in reducing the amount of power your engine can produce.

Also check the plugs on your ECM (computer) and make sure they are all seated properly.


Guru...............saailer


I’m happy to help further over the phone at https://www.6ya.com/expert/david_6df67de3b14de867

My 06 expedititon just had the throttle body replaced at 52,000 miles, car would go into safe mode but you couldn't drive it.. always on the freeway - that is just really safe! had to park it... kill it and restart it, to be able to drive!

Sounds to me like the mass airflow meter, cutting in and out. When faulty it can completely shut a car off, and also ingauge limp mode. I hope this helps. Let me know how you get on.

I encountered the same problem, my engine fail safe mode light came on and shut the car down. I took my car to my mechanic and he found the solution to the problem. The car needed a throttle body cleaning and the fuel filter needed to be replaced. After having my truck serviced my mileage increased from 14.6 mpg to 15.4 mpg
ENGINE FAILED SAFE MODE WARNING LIGHT, GONE Total cost $86.45