Clear flood mode ?
01-02-2008, 10:51 AM
#1
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Clear flood mode ?
I think I read this in a workshop manual, but I'm not sure anymore, so : do our 993's have a "clear flood mode", meaning that if cranking at full throttle the DME shuts off the injectors to vent a flooded engine ? I know that my Saab 900 has that feature and I use it to build up oil pressure before I start an engine that didn't run for a couple of weeks.
Many thanks and happy 2008
Alain from Luxembourg
Many thanks and happy 2008
Alain from Luxembourg
01-02-2008, 12:22 PM
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Alain, don't have an answer to your question, but I'd just like to say I have been to your lovely country in 1968 and it has always been a wonderful memory. I wonder how much it has changed since then.
01-02-2008, 12:29 PM
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Good question and I have no idea. I have been using the "remove the DME and crank" method of years so, if this works, I am interested in knowing!
Cheers,
Mike
Cheers,
Mike
01-02-2008, 05:43 PM
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Mike ,
Using "I have been using the "remove the DME and crank" method means no spark , no injector fuel squirt so absolutely no need for anything else .
In my book you are absolutely spot on !! Well done .
Geoff
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KS400200,the oldest 964 on Rennlist,unless you know differently !
Using "I have been using the "remove the DME and crank" method means no spark , no injector fuel squirt so absolutely no need for anything else .
In my book you are absolutely spot on !! Well done .
Geoff
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KS400200,the oldest 964 on Rennlist,unless you know differently !
01-04-2008, 05:09 AM
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Larry,
in 1968 I was 6 years old, so I can't remember that well but afaik there was no speed limit at that time......more seriously : I think a lot of things have changed, Luxembourg being "the heart of Europe" and nearby 50% of the working population is coming from abroad every morning.
As to my initial question : I actually also pull the DME, but it would be much easier if I could just floor it and it would not start. So the question remains : will a 993 start if cranked at WOT and not been driven for a couple of days ?
Alain
in 1968 I was 6 years old, so I can't remember that well but afaik there was no speed limit at that time......more seriously : I think a lot of things have changed, Luxembourg being "the heart of Europe" and nearby 50% of the working population is coming from abroad every morning.
As to my initial question : I actually also pull the DME, but it would be much easier if I could just floor it and it would not start. So the question remains : will a 993 start if cranked at WOT and not been driven for a couple of days ?
Alain
01-04-2008, 01:09 PM
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My thoughts exactly ... 
Were I motivated to try it, I would pull the stunt on a well warmed and oiled engine: that way, my unbridled ignorance of the experiments consquences have a lesser opportunity to graduate to full fledged stupidity ..... like bouncing off the rev limiter on a cold engine before the toes release the pedal
Were I motivated to try it, I would pull the stunt on a well warmed and oiled engine: that way, my unbridled ignorance of the experiments consquences have a lesser opportunity to graduate to full fledged stupidity ..... like bouncing off the rev limiter on a cold engine before the toes release the pedal
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01-04-2008, 01:09 PM
#8
That's what I was thinking! Slam the pedal to the floor and try starting it. It's not like you have to keep it at WOT if it starts. Might be best to have a warmed-up engine before attempting, though.
That procedure is that same as what one does with flooded carbs. Geez, I'm getting old.
That procedure is that same as what one does with flooded carbs. Geez, I'm getting old.
01-04-2008, 01:15 PM
#9
My thoughts exactly ...
Were I motivated to try it, I would pull the stunt on a well warmed and oiled engine: that way, my unbridled ignorance of the experiments consquences have a lesser opportunity to graduate to full fledged stupidity ..... like bouncing off the rev limiter on a cold engine before the toes release the pedal
Were I motivated to try it, I would pull the stunt on a well warmed and oiled engine: that way, my unbridled ignorance of the experiments consquences have a lesser opportunity to graduate to full fledged stupidity ..... like bouncing off the rev limiter on a cold engine before the toes release the pedal
01-04-2008, 02:29 PM
#10
Three Wheelin'
I vaguely remember some advice about NOT flooring a fuel injected car when starting it. IIRC it had to do with a potential backfire that could cause problems upstream in the intake (like the airflow sensor). Maybe it's just an old wive's tale though. I'm very happy to let someone else try this experiment.
01-04-2008, 04:36 PM
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01-06-2008, 01:34 PM
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MythBusters reloaded !
Well, I can now tell you that it does NOT work, the engine will start !! So I will have to pull the DME or tap into the harness if I want to install a switch in the cabin.
Alain
Well, I can now tell you that it does NOT work, the engine will start !! So I will have to pull the DME or tap into the harness if I want to install a switch in the cabin.
Alain
