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1990 Legacy MAF - which one is the right one??


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I'm back! With more questions!

So, the MAF sensor on my 1990 Legacy wagon (AWD 5MT) is bad, and I hunted all over to find a new one that fits my car.  Finally found one on PartsGeek that said it fit my year, make, model, and was specifically for manual transmissions.  Unfortunately there were no closeup pictures of it, and when it arrived, it doesn't appear to be the right one.  The one that's been in my car forever is a hot film sensor with a 5-pin (female) connector.  The one I just received has something else going on with the sensor and the connector has only 4 pins.  I've got a partial FSM for the 1990, a FSM for the 1992, and hours of internet searching and I can't figure out if this thing will work in my car! 

So I come to the experts!  Anyone know if this is the right sensor, or if it will work even though it doesn't look like the one I'm replacing?  Thanks, as always, for everyone's help!

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I’m going through parts as the weather warms. For sure I have the MAF from at least the 92-94 and maybe 90-91. I’m not sure there’s even a difference on that item. Probably all the same for all EJ22E 90-96. 
 

As I can I’ll check the boxes I have which happen to be right up front waiting for spring. 
 

If I have the 5-pin I’ll let you know asap. 

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8 hours ago, moosens said:

I’m going through parts as the weather warms. For sure I have the MAF from at least the 92-94 and maybe 90-91. I’m not sure there’s even a difference on that item. Probably all the same for all EJ22E 90-96. 
 

As I can I’ll check the boxes I have which happen to be right up front waiting for spring. 
 

If I have the 5-pin I’ll let you know asap. 

Thank you, moosens!  I know there's apparently a difference only as far as manual/automatic goes - so far, not sure there's anything different as to year, at least not between 90 and 93!  But that's what I've been able to figure out so far.

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