72
Presented by Bob Pattengale
BOSCH MTS 5200 LAB SCOPE
1-800-71-TRAIN (1-800-718-7246) OR www.auto-video.com
LIVE VEHICLE TESTING (FUEL PUMP)
You will get very good at using this current probe as you get better at using your lab scope. You
need to get in the habit of testing every fuel pump on every high mileage vehicle that comes
through your shop. This will enable you to catch a problem fuel pump BEFORE it creates a
customer concern.
To test the the fuel pump on our subject vehicle we
first need to connect the current probe to the lab
scope. Then we need to identify which fuse in the
fuse box controls the fuel pump and remove it. Once
we remove the fuse we need to install a suitable
jumper wire, such as the Fuse Buddy pictured left,
into the space where the fuel pump fuse was
located.
Once you have the lab scope screen set up to view
the pattern the way you want to see it, turn on the
current probe and clamp it around the jumper wire.