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Old 02-07-2018, 01:07 PM   #2
Loaf31
Scooby Newbie
 
Member#: 481638
Join Date: Feb 2018
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UPDATE:

Today, I was checking the MAF sensor when I noticed that the coupler that connects the turbo inlet pipe to the turbo itself was 100% loose. I shoved it onto the turbo and tightened that thing down tight.

My thoughts are:
Could this have basically created a giant vacuum leak which caused a lean condition in cylinder 4? If so, what would the culprit be? Valves? Piston rings? please let me know!
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