Trouble shooting the DPFE
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Fleet Mechanic
Joined: Jan 2005
Posts: 1,344
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Trouble shooting the DPFE
Printed the Ford DPFE Sensor Test instructions from the tech link at the beginning of the Ranger section. The only way I can get a probe into the back of the electric connection is to use paper clips. Here is my problem besides the fact that I'm not an electrical genius.
Turned to key to the run position (on), connected the negative probe to the negative battery post. probed the top wire (DPFE signal) the DPFE connector and got 0.00 volts. Same with the middle wire (signal return). Am I doing something wrong?
However, if I touch the paper clip/probe I get a .54 volt reading. My Ranger has the 2.5L and the DPFE housing is black plastic.
Turned to key to the run position (on), connected the negative probe to the negative battery post. probed the top wire (DPFE signal) the DPFE connector and got 0.00 volts. Same with the middle wire (signal return). Am I doing something wrong?
However, if I touch the paper clip/probe I get a .54 volt reading. My Ranger has the 2.5L and the DPFE housing is black plastic.
Thread Starter
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Fleet Mechanic
Joined: Jan 2005
Posts: 1,344
Likes: 1
Thanks, I was having trouble getting a pin in the connector to get a good reading. Wound up reading through the many threads here about it and decided to replace the sensor. Took it for a 6 mile drive down the highway and so far the light has stayed off. Time will tell.
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Joined: Jan 2004
Posts: 13,851
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From: SW Va
Yup, it's difficult to do back probing & to be certain of the results.
The DPFE sensor has earned it's place high up on a misbehaving EGR system suspect list, so maybe you've guessed right, lets hope so.
The DPFE sensor has earned it's place high up on a misbehaving EGR system suspect list, so maybe you've guessed right, lets hope so.
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