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secondchance · 01-10-2016

Check map sensor hose and make sure it's correct one - hard plastic hose with rubber ends. I've seen this piece substituted with rubber vacuum hose. This will work fine for awhile until the rubber soften. Under deceleration, increased vacuum will collapse the hose sending wrong vacuum reading to the MAP sensor.

01-10-2016	#2
secondchance Join Date: Aug 2006 Location: McLean, VA Posts: 3,738	Re: Bogging after Coasting Check map sensor hose and make sure it's correct one - hard plastic hose with rubber ends. I've seen this piece substituted with rubber vacuum hose. This will work fine for awhile until the rubber soften. Under deceleration, increased vacuum will collapse the hose sending wrong vacuum reading to the MAP sensor.