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Okay you guys must be in bed so I decided to give what I suggested. Bad news is the multi meter won't work. Good news is the scope worked like a charm. I used a normal knock sensor put a bolt through it one wire from the scope onto the bolt the other to the out plug that ges to ECU. Started the engine on the old girl (lot of knocks in that baby) held the bolt onto the intake manifold and this is what I got in photo 3. First photo Knock sensor with bolt, second Knock sensor not touching engine & third held on intake. Give it a try its simple, I think the curve reflects the cyclinder firiing which means I was wrong when I said it was a dirty signal.
Tony
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1995 - SVX 700,000 K Mine, DMS Struts to lift car 2in. Tyres Wrangler Silent Armor 235/70R16, PBR Radiator. 6 speed with DCCD and R180 rer diff, Heavy duty top strut mounts front and rear. Speedo correction box fitted. New stero (gave up on the old one). Back seat removed and 2 spare tyres fitted for desert driving. ECUTune SC sitting in the box for the next SVX.
1992 - SVX 255 K Wife (Want to stay Married so not allowed to fit SC)
1992 - SVX Pearl with black roof race car roll cauge etc ready to race. Ex Tasman Targa car.
1995 - SVX Green low k mint condiation.
1995 - SVX Rally car, ex Matts car. Now to be used on track.
1992 - SVX red & Black being converted to Mid Engine.
1995 - SVX Red 143,000 bit rough.
Owned 5 others Subaru back to a 1974 1400 GSR.
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