R
ron
I have a 89 8V 740 and I'm told I have a bad AMM. This is what
happens, in the morning I go out side unplug the AMM the car cranks once
approx. 10 sec. no start then starts immediately on the second crank (if
I don't unplug the AMM it can take up to 5 minutes to start if it starts
at all, the car will start then die , start die, start die, finally stay
running after slightly revving the engine) My question is what is going
on I know the AMM is reading the air density to proportion the amount of
fuel based on the air temp / air density (gas law physics), but if the
AMM is bad why does the car run fine after warming and I've replugged it
in? What does unplugging the AMM do for starting the engine, does the
engine receive more or less fuel, if left plugged in on the first start
of the morning is it starving or flooding the engine? And is the AMM
bad if it runs fine after warming?
happens, in the morning I go out side unplug the AMM the car cranks once
approx. 10 sec. no start then starts immediately on the second crank (if
I don't unplug the AMM it can take up to 5 minutes to start if it starts
at all, the car will start then die , start die, start die, finally stay
running after slightly revving the engine) My question is what is going
on I know the AMM is reading the air density to proportion the amount of
fuel based on the air temp / air density (gas law physics), but if the
AMM is bad why does the car run fine after warming and I've replugged it
in? What does unplugging the AMM do for starting the engine, does the
engine receive more or less fuel, if left plugged in on the first start
of the morning is it starving or flooding the engine? And is the AMM
bad if it runs fine after warming?