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When you figure out how to do house, kids, and multiple car projects with more than 4 hours sleep, I request a write up for the USMB technical write up section! Haha

That was a good call to try another sensor. It’s easy to think “already replaced that, what’s next”.

It won’t take long to get a thorough education on 1970’s Subarus. What you have is considered a Stage one car. In 1977 Subaru finished one body run and began a new one , hence Stage one 1977 and Stage two 1977. So along the way the previous era was declared stage one (1972-77) and then stage two (1977-79). And the first Brat is associated to stage two and runs up through 1981. 1982 begins a next gen for the Brat. 1980 begins a new gen for the cars. Laughable history - 1973 had 3 stages within that year. It’s own story. So the car you’re looking at being stage two definitely came with a 1600 You can use that engine and drivetrain in your car. They are similar in size and you might not even need the 1600 crossmember , but if the opportunity is there it wouldn’t hurt to have. Wheels are the same , brakes too.

The cheap knock sensors work often times but expect some rates of issues.

That will do it. I always pull the boot back, insert the the wire into the cap, then slide the boot down.

New unit made all the difference! Lots of power now, no problems. Two different units on ebay: The OE unit: https://www.ebay.com/vod/FetchOrderDetails?itemid=192926413511&transid=1781703698009&ul_noapp=true Bad unit: https://www.ebay.com/itm/Detonation-Knock-sensor-for-1997-1999-Subaru-Legacy-2-2L-2-5L-KS96/353064994578?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649