986 Forum - The Community for Porsche Boxster & Cayman Owners - View Single Post - Air Intake -40 Degrees

JonnyReverb · 02-28-2016, 08:03 AM

Hey Everyone,
I have a 99 Porsche Boxster with 64K miles. The performance has gotten pretty bad, and the check engine light came on, so I took her to a mechanic someone recommended. They said the mass airflow sensor is reading -40, the mechanic hooked up a new one (Bosch), and the temp was still -40. There was also a code that coil 3 misfired. I am guessing the two are related (maybe the low temperature reading is causing her to run rich). But if it is not the MAS, I am stumped.
I ran a search in here and on Google with no results. Anyone seen this before?
Thanks,
Jonny

02-28-2016, 08:03 AM	#1
JonnyReverb Registered User Join Date: Dec 2015 Location: Ohio Posts: 5	Air Intake -40 Degrees Hey Everyone, I have a 99 Porsche Boxster with 64K miles. The performance has gotten pretty bad, and the check engine light came on, so I took her to a mechanic someone recommended. They said the mass airflow sensor is reading -40, the mechanic hooked up a new one (Bosch), and the temp was still -40. There was also a code that coil 3 misfired. I am guessing the two are related (maybe the low temperature reading is causing her to run rich). But if it is not the MAS, I am stumped. I ran a search in here and on Google with no results. Anyone seen this before? Thanks, Jonny Last edited by JonnyReverb; 02-28-2016 at 08:17 AM.