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Anyone use the CRC Air Mass Meter cleaner?

posted by  dick on  Thu Jul 20 13:42 CST 2006
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last visit: Sun Aug 3 15:24 CST 2014
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I noticed this is available and guys are using it on FWD Volvo's successufully. Seems my AMM's are not the greatest and I keep a spare on hand. Just replaced one tonight on my 93 940T. Thought I may try it on the one just removed.

dick








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There is no need...

posted by  lucid on  Fri Jul 21 02:17 CST 2006
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last visit: Fri Oct 24 12:31 CST 2014
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...for AMM Cleaning on any LH AMM up thru LH2.4, because these "Hot Wire" sensors are automatically cleaned by an ECU-initated "Burn-Off" sequence when the engine is shut off.

This sequence (after any run where 3000rpm has been detected) heats the platinum hot wire to 1800°F for one second, burning off any contaminants. I doubt that any spray can cleaner could improve on that.

"...guys are using it on FWD Volvo's successufully"

Maybe because the the FWD cars use the later "Hot Film" AMM? I'm not familiar with that type, but it doesn't sound like it would have a burn-off cleaning sequence, so maybe CRC does some good there.
--
Bruce Young
'93 940-NA (current), 240s (one V8), 140s, 122s, since '63.








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Anyone use the CRC Air Mass Meter cleaner?

posted by  spasske on  Fri Jul 21 02:10 CST 2006
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last visit: Thu Oct 23 10:11 CST 2014
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I've corrected problems with my AMM by cleaning the electrical connections. There is a rebate in this months Popular Mechanics to get it for free, so I was going to try a can.
Check this out

--
Paul NW Indiana '89 740 Turbo 120,000








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Anyone use the CRC Air Mass Meter cleaner?

posted by  dick on  Fri Jul 21 09:27 CST 2006
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last visit: Sun Aug 3 15:24 CST 2014
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Thanks---will try it on both my FWD and RWD ujits.

dick








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Anyone use the CRC Air Mass Meter cleaner?

posted by  Steve on  Thu Jul 20 14:42 CST 2006
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last visit: Fri Oct 24 07:16 CST 2014
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All that blowing sagebrush down there has clogged your meters...

Welcome back: sorry I missed you.

Steve
--
See the 700/900 FAQ under 'Select Link' button on the top right.








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Anyone use the CRC Air Mass Meter cleaner?

posted by  dick on  Fri Jul 21 09:29 CST 2006
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last visit: Sun Aug 3 15:24 CST 2014
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Actually just noxious weeds and fire ants! Will fill you in on the trip---was great!

dick







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