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5

What it comes down to is there are trade offs. In the case of the engine, it's torque output and rotating mass versus engine speed ... read on. First, it isn't power which is needed, but torque to keep an engine running. In the early days of engines, each had one cylinder and didn't run very fast. To keep it running, it had a very large flywheel attached to ...


4

Problems like this are addressed in Charles Probst's excellent reference, Bosch Fuel Injection & Engine Management. From what I can gather, the Mk1 Golf utilizes a basic K-Jetronic system illustrated in the diagram below1 (which operates on the principle of continuous injection). The stalling symptom is an indication that the air-fuel mixture is not ...


3

All EFI engines shut off the fuel injectors when the accelerator is released above a certain RPM or speed (varies by manufacturer). It's easier to detect on newer model cars with a digital instant fuel economy gauge where when cruising at 55 MPH and the accelerator pedal is released, the economy readout will shoot from 30 MPG to the highest number or the ...


2

I eventually found the issue: the fuel lifter pump was faulty. For those that dont know, the Mk1 has 2 fuel pumps - the main one underneath the car (or, on some variations, in the engine bay) and a 2nd 'lifter' or 'transfer' pump that sits inside the fuel tank and can be accessed by removing the rear seat. This 2nd pump's bearing were gone. The primary pump ...


2

I will explain it for an EFI engine with a manual transmission because it might not be as straight forward with a carbureted engine or automatic. For ease of explaining this I will consider the engine as "on" whenever the ignition switch is set to the "on" state. This means that the ECU is on and is monitoring the engine state and controlling it's behavior. ...


2

The sensor should not cause the engine to stall. All of the accessories not working (power steering and brakes) would be normal with a stalled engine. What I would be looking at is the fuel pump might be going bad. A mechanic can easily check this by placing a fuel pressure sensor on the fuel line to check the pressure. If the engine is losing fuel pressure, ...


2

Turns out it was because of my stand being down :/ I've not been riding for too long and didn't even know they had that kill feature, am glad it is there, un-glad i had to walk! :)


2

Possible Answers We were hoping for a little feedback regarding this issue prior to attempting an answer. A few things come to mind regarding the problem description and we'll run through a few of them for you. Regarding Stalling Fuel Line - Your fuel filter may be impeded and require replacement. Since you have not indicated this happens at higher ...


2

There is a sidestand switch that kills the motor if you attempt to put it into gear with the sidestand down, it's a safety measure. Check that switch at the top of your sidestand to see if the a mount bolt or nut has fallen out thereby loosening the switch and making the vehicle inoperable when you put it into gear.


1

Where did you get your vehicle serviced? I am pretty sure that '94 Concordes don't have carburetors; so I am curious who charged you for this service and if it is a wise idea to go back to them. That year/model is fuel injected and they could have service your fuel injection system, but that is different that a carb cleaning; you should verify with your ...


1

It is a carburetor problem, but only because the fuel and air mixture is too lean. In cold environment there is more oxygen in the air, which increases the amount of "air" in the air-fuel mixture. This is further proven by the fact you have to accelerate to keep the bike alive - by accelerating you use parts of the carb only used in medium/high openings, ...


1

I think you need a new stator. Your problem sounds like there are loose connections or there may be reason that the bike is not charging properly. I think you start checking all the basics first and check the battery to make sure it is good. Check the volts on your battery with voltmeter.


1

This sounds like a problem with the Idle Air Control (IAC) valve, or something in that general vicinity. You should try to clean it and the upper intake tract.


1

The engine is optimized to be efficient at high rpm or at low rpm (racing engine or cement mixer design respectively) but it can't be efficient at every possible speed so it is up to the driver to choose the best gear and speed to match the capabilities of the motor he has, i.e. keep it revving at an appropriate rpm for the speed/torque demanded of that ...


1

The issue ended up being a bad gas cap. When the mower starts to sound like it is dying, I simply unscrew the cap for a few seconds and it kicks right back in. I will replace it eventually but it has been running for 2-3 months now without issues as long as I let the tank get some air every 10-15 minutes. I am sure cleaning the carb & replacing the ...


1

My guess is that your long term fuel trim was commanding the fuel injectors to inject less fuel. When you start your car, you are running open loop (without the feedback of the Oxygen Sensor). In the warm-up phase, if your long term fuel trim is low, the car will stall since it is injecting less fuel than it was calibrated for. When you disconnected the ...


1

The lights coming on is normal for engine off, key on. That is just the car illuminating most/all of the lights to verify the bulbs work.


1

If you mean the engine shuts off, when you come to a stop, it's likely a Torque Converter Lockup Solenoid keeping the Torque Converter Clutch engaged stalling the engine when you come to a stop



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