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Computer

Tiny
EHHBUDDY
  • MEMBER
  • FORD EXPLORER
Ford Explorer 1998 155,000 4.0L SOHC
My O2 sensors are not sending any readings to my OBD scanner when I plug it in nor are my fuel sensors. I double checked and took my car to the shop and plugged it in there and still no readings. Yet my MIL light is still off I have checked the grounds and they are fine could there be anythign else wrong besides the computer?
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Sunday, September 30th, 2007 AT 6:26 PM

4 Replies

Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
Does your scanner read the computer? Some ford use a different communication type, CAN is Ford truck standard.
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Sunday, September 30th, 2007 AT 6:32 PM
Tiny
EHHBUDDY
  • MEMBER
  • 3 POSTS
1998 Ford Explorer 155000 4.0L SOHC
Yes my scanner can read the computer but when I scroll down to my o2 and fuel sensors I get no output from the scanner it acts like they arent even there. I know they are there I have checked, but im getting -100% readings and 0V. As far as I know CAN is only available on 2004 and newer models.
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Thursday, October 4th, 2007 AT 9:31 AM
Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
I'm not possitive on the first year they used can, but you may be right. Have you tried unplugging one of them to see what the PCM does? And your scanner?
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Thursday, October 4th, 2007 AT 2:20 PM
Tiny
EHHBUDDY
  • MEMBER
  • 3 POSTS
Yes I did and no change I ended up just replacing the pcm and programming my passkey to it and I get the read outs just fine again. The computer just gave up
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Tuesday, October 9th, 2007 AT 8:33 AM

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