@StarBear L Jetronic Temp Sensor II AFM Options

[wonkipop]

@StarBear .


here is what i have on the Temp Sensor II inbuilt into the AFM on the 1.8 L Jetronic.





i could be wrong but i don't think there is any effective way to test the air temp sensor in the AFM on our adam/eve in the garden of eden L Jetronic system. that sensor is not wired in separately.

but maybe there is an expert here who knows.

- in relation to the problem you are having with hot days and ultra high humidity causing the idle to drop to barely running - i'm not sure the symptom fits a faulty Temp Sensor II in the AFM. others here might know better. I would not have thought a faulty sensor would cause that dramatic a result. Temp Sensor 1 (CHT) - yes. but Temp Sensor II no.

i am sure @Van B will pipe in with a more learned view.

I would have thought Temp Sensor 2 fault would make the car run rich.
I think that is how it would work. but again i am probably wrong.
i'd have to think about it.
most trouble shooting literature i can dig up says failure mode causes car to run richer generally. increased fuel consumption.

[StarBear]

Great discourse! Informative and methodical, too.
There is a multi level parking deck in Morristown. Will do that trial first! Thanks for the suggestion, @wonkipop! (IMG:style_emoticons/default/biggrin.gif)

[wonkipop]

Great discourse! Informative and methodical, too.
There is a multi level parking deck in Morristown. Will do that trial first! Thanks for the suggestion, @wonkipop! (IMG:style_emoticons/default/biggrin.gif)

its got to be an underground basement car park.
deep enough and big enough for the stable ground temp to influence the concrete.
concrete will usually settle at the average annual temp for the region if its also insulated or separated enough from atmospheric air temp up above ground. concrete is also a very good conductor so you need to be in the deepest zone of the car park where its least altered by above ground conditions.

if its deep enough down the air in it will also rest/stratify in layers and the hot air from outside won't overly mix with the cooler air down low. the concrete (if its not sealed or painted) will also absorb a lot of the moisture in the humid air and dehumidify it. you will know because it will be cooler and drier down there and more like one of your standard less humid summer days.

if you can find one with the right environment you should be able to drive in with the car experiencing the symptoms you are talking about on a very hot and humid day and it should settle down again to its behaviour on cooler less humid days - seems to me like a good way to test your theory with some real world conditions you can sort of simulate.

otherwise find a giant drive in refridgerator. (IMG:style_emoticons/default/biggrin.gif) (IMG:style_emoticons/default/biggrin.gif)