Engine stalling after you start going fwd from stop. Such as backing up then going fwd or stopping at a stop light. Mainly after sitting with engine off for a while. Check engine light comes on and then goes out after a couple days. has new plugs. engine code said misfire, but new plugs didnt fix problem

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

you check the gas filter when you have a bad one its run to a point the gas cant go throgh its stalls pump stop gas go back and start over again pressure push the dirt again let me no pierre

P0305 is a # 5 cylinder misfire , do you know what that is ? Check engine light flashing indicates a severe misfire that can damage the catalytic converter . Don't drive this vehicle ,take it immediately to a qualified repair shop or the dealer .
A Ford P0171 is a LEAN code for cylinder bank 1, and P0174 is a LEAN code for cylinder bank 2. These codes commonly occur on many Ford vehicles, and are set when the powertrain control module (PCM) sees the air/fuel mixture is running too lean (too much air, not enough fuel).

Flashing check engine light CarMD

Check for loose connections on your ignition system, mainly around the coil.

Could be crank shaft sensor, plus fuel filter tune up plugs and wires, go to auto zone check light it is free.

What engine?

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

To correct this problem I want you to get a can of intake cleaner (ABOUT $5.00) from any local auto parts store like NAPA or Carquest, do not use carburetor spray, intake cleaner only or u will damage the Teflon coating inside the throttle valve and air bypass valve, it is made by a company called CRC, remove the air intake hose to the engine, hold the idle high so the engine won't stall, then spray the can of cleaner into the intake while keeping the engine running, use at least 1/2 the can, shut down the engine and disconnect the battery for 5 minutes, then restart and complete a number of mixed driving cycles, town, freeway, stop and go etc., after a few days the problem will go away as the system will relearn to the clean intake.

One suggestion:
Speed sensor failure.

Info:
Some of the classic symptoms, stalling at dead stops. failure to auto lock doors. poor fuel economy. Failure to go to overdrive.


Recommendation:
Go to your local parts store and run the failure codes.

Shop notes:
Your ECU thinks that the engine is running with out moving, During slow down the engine steps down the idle to match ground speed and as a result the engine will not stall. At present it goes directly to idle and stalls due to drag on motor.
Hope this tip helps.

R/
David

Here are the most common causes of surges, stalls at stops, low erratic idle speed, rough idle and engine hesitation, it is in most cases the idle speed control air-bypass valve and or throttle valve and upper intake, these area's get full of gunk and combustion residue over the miles and cause idle issues (stalls, low idle) like yours, Get a can of intake cleaner from any local parts store, not carb spray, intake cleaner, it is made by a company called CRC, remove the air intake hose to the engine, hold the idle high so the engine won't stall, then spray the can of cleaner into the intake while keeping the engine running, use at least 1/2 the can, shut down the engine and disconnect the battery for 5 minutes, then restart and complete a number of mixed driving cycles, town, freeway, stop and go etc., after a few days the problem will go away as the system will relearn to the clean intake.

check the iac i sounds like it is acting up