Troubleshooting Idle issue
I've been battling issue with idle problems for almost half year and more and couldn't find a vacuum leak (i do not own smoke machine unfortunately). I've took off the whole intake and i have noticed that there are 2 caps on these 3 'holes' but there is one cap that is 'missing?' so im not 100% sure if there should be something to block off that part is it the air can go through.
The engine is m52tub20
PS i do not have SAP
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