mondeo airbag engine cutout
Discussion
If the switch has tripped it shouldnt start at all! 10 seconds is an awfull long time with no fuel pressure if it restarts immedeatly.
I'm thinking MAF problems, when a car first starts most systems run a standard start procedure without the airflow meter and after a few seconds it then reverts back to it.
I'm thinking MAF problems, when a car first starts most systems run a standard start procedure without the airflow meter and after a few seconds it then reverts back to it.
CombeMarshal said:
You still haven't said if the airbag has been deployed
Read the original post "The blown airbag" and then further on "I bought it like this"
Airbags when blown are open circuit, when good they have a certain impendence (I think its impedence, my electronics isnt very good) So you need to mimic this.
A word of warning, airbags are very dangerous, dont mess if you do not know what you are doing. There are 2 stages (bangs) in modern airbags, both should blow but the second stage could still be live. It doesnt take much to pop them, a few volts, even static can be enough.
John
The most obvious answer is to pop down the breakers and get another steering. My local breakers has shelves full of them.
I still don't understand why this is related to the engine problem. It is possible that something in the ECU is looking for the bag but I can't see the logic of designing it that way. The inertia switch is there to shut of electrics and fuel in a crash for good reason but you can reset it having made the judgement call that all is safe. Why then would you design a system that disabled the car just because the bag is deployed.
Another line of logic that may be flawed, If the problem is ECU related and is sufficient to generate a consistent time interval and shutdown then there must be a code in there somewhere. If not then the fault may be nothing to do with the elecricary.
Steve
I still don't understand why this is related to the engine problem. It is possible that something in the ECU is looking for the bag but I can't see the logic of designing it that way. The inertia switch is there to shut of electrics and fuel in a crash for good reason but you can reset it having made the judgement call that all is safe. Why then would you design a system that disabled the car just because the bag is deployed.
Another line of logic that may be flawed, If the problem is ECU related and is sufficient to generate a consistent time interval and shutdown then there must be a code in there somewhere. If not then the fault may be nothing to do with the elecricary.
Steve
Jwb said:
CombeMarshal said:
You still haven't said if the airbag has been deployed
Read the original post "The blown airbag" and then further on "I bought it like this"
Airbags when blown are open circuit, when good they have a certain impendence (I think its impedence, my electronics isnt very good) So you need to mimic this.
A word of warning, airbags are very dangerous, dont mess if you do not know what you are doing. There are 2 stages (bangs) in modern airbags, both should blow but the second stage could still be live. It doesnt take much to pop them, a few volts, even static can be enough.
John
But Blown to me just means a fuse has gone, not that it has been deployed (being an electrician I suppose!) I'd be VERY carefull what you do with a multimeter to it though.
I take it you mean some how it has deployed, I'd just go get another one, should only be about £20 from a breakers, just be sure if you removing it that the battery has been disconnected for at least half an hour and when you have finished installing the new one and turn on the ignition for the first time do it from out side the car through the window!
I ditched my airbag for a new wheel (on a different car) and made no difference to the car, but mine was all self contained within the wheel
Oh, and Impedance is what your looking for, god knows where you'd find the value from though!
Oh, and another thing, does it have seat belt pretensioners, if so they could have activated too
steve_d said:
The most obvious answer is to pop down the breakers and get another steering. My local breakers has shelves full of them.
I still don't understand why this is related to the engine problem. It is possible that something in the ECU is looking for the bag but I can't see the logic of designing it that way. The inertia switch is there to shut of electrics and fuel in a crash for good reason but you can reset it having made the judgement call that all is safe. Why then would you design a system that disabled the car just because the bag is deployed.
Another line of logic that may be flawed, If the problem is ECU related and is sufficient to generate a consistent time interval and shutdown then there must be a code in there somewhere. If not then the fault may be nothing to do with the elecricary.
Steve
I still don't understand why this is related to the engine problem. It is possible that something in the ECU is looking for the bag but I can't see the logic of designing it that way. The inertia switch is there to shut of electrics and fuel in a crash for good reason but you can reset it having made the judgement call that all is safe. Why then would you design a system that disabled the car just because the bag is deployed.
Another line of logic that may be flawed, If the problem is ECU related and is sufficient to generate a consistent time interval and shutdown then there must be a code in there somewhere. If not then the fault may be nothing to do with the elecricary.
Steve
it's designed so that if the airbag has been deployed then there has been an accident and the fuel needs to be shut off - this is now done via the airbag ECU so until that issue is sorted the car won't run - I've posted on your other thread as well
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