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Discussion Starter · #1 ·
I have a Haynes manual for a 280zx but I have a 79 280z and the numbers on the electricle harness on the air flow meter are different!? Was hoping someone might have the right info for me?ie;numbers with resistance. the numbers on my meter read 39 36 6 9 8 7 27
 

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There is no 79 280z, the last year for the 280z was 1978.

The numbers you listed correspond to an AFM from 1975 to 1978.

Please re-phrase your question.

Wayne Monteath
Masham, Quebec.
 

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my mistake; my 78 280z is missing speraticly at all temperatures
I have checked just about everything there is except the AFM because the Manual I have is for a 79 280zx and the numbers on the AFM harness are different does anyone have the specs. for this?thank you
Seth
S.S.I B.C.
 

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Ok, that makes a bit more sense.

First, ignore 39 and 36, they were used on pre 1978 to control the fuel pump, on the 78 they are not hooked up to anything.

The resistance between 6 and 8 should be ~ 180 ohms.

The resistance between 7 and 8 should be ~ 150 ohms.

The resistance between 9 and 8 should be ~ 100 ohms.

For the Air Temperature Sensor:

The resistance between 6 and 27 should be ~ 3,250 - 4,150 ohms @ 50F.

The resistance between 6 and 27 should be ~ 2,250 - 2,750 ohms @ 68F.

The resistance between 6 and 27 should be ~ 740 - 940 ohms @ 122F.

For testing the air temp sensor I use a digital thermometer and a multi-range hair drier.

Hope this helps you out.

I have an electronic version of a schematic for this somewhere, if you figure it will help more let me know. It will take at least 24 hours for me to find it and email it to you as I must go and drink beer and throw sharp pointed things at a target on a wall this evening.

Wayne Monteath
Masham, Quebec.
 
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