05-14-2020, 09:42 AM | #1 |
Solving problems
Join Date: Oct 2003
Carmudgeonly Ride: M5 / 718 GTS / Cooper S / GTI / LR4
Location: Metro Boston
Posts: 25,280
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MAF and Throttle body cleaning
Yesterday I finished a bunch of preventive maintenance stuff on the Miata as it has 9.5 years and 95k miles now.
- Accessory belt - Thermostat housing - Coolant tank - Coolant flush - MAF and throttle body cleaning The MAF and TB were both pretty dirty. The TB had to come out for the (PITA) thermostat job, so I figured I'd clean it. The thing is, this is my first time cleaning such items on any car. People claim it improves idling, mpg, etc. I drove the car around to check the cooling system and did not notice a big difference, but I am curious how often (if at all) you guys do this. Anyway, the Miata should be good for a while other than diff and transmission fluid changes that were done last at the 60k mile service in 2014. That will wait until next year. Last edited by FC; 05-14-2020 at 10:02 AM. |
05-14-2020, 09:44 AM | #2 |
Relic
Join Date: Oct 2003
Location: Bethesda, MD
Posts: 12,476
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Unless the actual MAF element is fouled (i.e. by oil from a K&N filter), I have never noticed a meaningful change from cleaning either. I still will do it if they're dirty.
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2011 M3 2006 Sierra 2500HD 4WD LBZ/Allison 2004 X5 3.0i 6MT 1995 M3 S50B32 1990 325is 1989 M3 S54B32 Hers: 1989 325iX 1996 911 Turbo |
05-14-2020, 01:51 PM | #3 |
Alphanumeric
Join Date: Aug 2005
Carmudgeonly Ride: 981S, 340i
Posts: 9,587
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I did the same clean to the e39 528i (with vague hopes). No change but no harm done either.
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