Mercedes-Benz Forum - View Single Post - M103 Rough idle and vacuum leak
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post #42 of (permalink) Old 08-31-2017, 04:23 PM Thread Starter
codycool55
BenzWorld Member
 
Date registered: Jun 2013
Vehicle: '89 300 SE
Location: Eastern Washington state
Posts: 67
Mentioned: 4 Post(s)
Quoted: 45 Post(s)
(Thread Starter)
I have not yet tried using another object to measure the gap but I will as soon as I can!

As far as I know I connected the sensor correctly. I did not connect the female plug (coming from the sensor) directly to ground. The results in post 34 were from placing the multi meter directly between the 2 o2 sensor plugs. Yes, the connector is back in place as it was before. I remember a few months ago (6?) The check engine light came on for a day or two but went away before I had the opportunity to check it. Is it possible to reset the light to see if it will come on again?
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