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JDM Engine Swap - 1995 LE SC AWD - Vibration on accelleration
I recently swapped my 240k 2TZ-FZE out of my previa for a JDM equivalent. The swap went smoothly, I have a lift in my driveway and dropped it out the bottom. Now that everything is back together except the tailpipe, the engine idles fine, but when given any gas it gets really loud- louder than I'd expect even without the tailpipe in place, and there's noticeably less power than expected and a tight, fast vibration proportional, it seems, to the pistons firing. The first section of exhaust is in place, with the o2 sensors connected before and after the cat, but the second cat is not in place leaving the tailpipe disconnected. I don't think this has anythign to do with the vibration and loss of power I'm experiencing. The vibration, it should be noted, is independent of vehicle speed, it only happens when you try to give the engine any gas.
I originally suspected this was a timing issue- but the timing is not adjustable on the S/C engine. Any ideas what this would be?
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