[MR2] Repairing an Air Flow Meter (AFM)
karhu at california.com
Tue Apr 28 21:38:02 EDT 2009
Awright! That's the spirit! Good job! Saved some money, learned
something, taught something.
----- Original Message -----
From: "Mark F. Bean" <Mark_Bean at verizon.net>
To: "'Hawkley, Inc.'" <paypal at clubmr2.com>; "'Donald Chalfant'"
<dkchal at datasync.com>
Cc: <mr2 at mr2.com>
Sent: Tuesday, April 28, 2009 4:39 PM
Subject: [MR2] Repairing an Air Flow Meter (AFM)
> Start with THANKS and especially to the inestimable Don, Steve Badon,
> Kurt Kruger, Wane Arndt, Bill Strong, Karl Brumund, David Hawkins, Ray
> While sealing the AFM, Toyota should have buried those connector screws
> silicone to foil idiots like me! That will be the first thing I do - er
> second (after writing this email).
> In for a penny, in for a pound. Leaving the car at the mechanic's, I
> the AFM home. Cutting out the silicone with razor and brass seal hook was
> easy. Then the black top can be lifted out. No question about it - one
> connection was broken.
> I used a camera in close-up mode to get a better look at it (cameras have
> higher resolution and magnification than any magnifier I have around). I
> can send pics if anyone cares. I disconnected the black lead push
> connectors and then the two forbidden screws so that the whole connector
> slid out - meaning it is not soldered onto the board at all. For each of
> three connectors, there is a metal ribbon soldered to the middle of the
> connector pins that twists past and under the pins, locating a small hole
> the ribbon end over a button on the pins.
> I secured the broken ribbon end piece with the hole in needle noise pliers
> and located the ribbon against the broken ribbon arm left on the connector
> pins, then soldered the two together. I added a bit of solder to the
> two in case they were weak. I then made sure the ribbon holes located on
> the pin buttons. Lastly, before I put the connector back into the AFM, I
> bent the three pins with ribbons down slightly, as I assume that they make
> electrical contact through pressure against the circuit board - which I am
> assuming cannot take heat.
> Bike back to the car, pop it in, and the car started right up! Now for
> silicone! I guess I have to go back to work tomorrow.
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