o2 sensors | Ford Explorer - Ford Ranger Forums - Serious Explorations

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o2 sensors

  1. D

    1996 Ford Explorer with a 1999 Ford Explorer engine

    Hey all, so I’m having idle issues and check engine lights are always on. Anyways I’ve removed all the old o2 sensors to replace them and ran into and issue with the connectors not matching. I only have 3 sensors and can only hook up two of them. Found one just dangling there unhooked and...
  2. J

    Cat Converters, O2 Sensors, Weak Acceleration?

    Hello! I have a 2002 Ford Explorer Eddie Bauer 4x4 with a V8. A few weeks ago I noticed that the acceleration was getting weak and it was running slow. After a couple more weeks it got the place where I couldn't get it to run above 25 mph. The rpms won't go above 3,000 and after a minute...
  3. Z

    93 Explorer shuts off on its own after warming up.

    It starts up and runs like a champ. But after about 3-5 mins of it running. It starts running really rough and will eventually shut off all on its own. It smells really bad because of it running so rich. Ive already cleaned the snot out of the MAF sensor, knocked out both catalytic converters...
  4. S

    1996 Explorer 4.0L - My MAF sensor different can't find one.

    My MAF sensor is not located where YouTube shows it to be and it's different from those for sale on Ebay.. Mine is mounted in an ABS plastic housing right next to the air cleaner. It looks to be a permanent mount within secured by a rubber bushing. I've already taken it out and cleaned it with...
  5. P

    Not finding o2 sensors.

    My scan tool shows 000 on all 4 o2 sensors and I get a p1000 code. It is also not picking up the egr signal. Would anyone have a wiring diagram that shows the way the are wired. Oh by the way its a 98 ford Explorer 4.0
  6. R

    2002 Idle Problem and 4 Codes

    My 2002 Explorer Sport XLT 4x4 4.0L has developed an idle problem. It starts fine when cold and after a five minute warm up it begins to idle up and down and then eventually stalls. It can be driven but acts the same when my foot is off the accelerator pedal. Previously, the check engine light...
  7. G

    no voltage to o2 sensors

    HELP!!!!!!!!! I have a 1997 explorer 4.0L that i just bought. I found out that the truck had the wrong mass airflow meter, and it also ran like crap. I changed the maf and no change in how it ran. I cleared the maf code and drove it on jacks to get another code. The cel came back on with lean...
  8. F

    No voltage from ANY o2 sensors

    So I have a 98 Explorer, 4.0L OHV, VIN X (from Canada), 130,000 mi. Rough idle CEL on and off for a few months. So found a vacuum leak under the air plenum changed the intake gaskets, rebuilt injectors, new plugs. Still rough idle. Checked the IAT sensor, no continuity, replaced. Still rough...
  9. F

    Need help Idle problems

    So I have a 98 Explorer, 4.0L OHV, VIN X (from Canada), 130,000 mi. Rough idle CEL on and off for a few months. So found a vacuum leak under the air plenum changed the intake gaskets, rebuilt injectors, new plugs. Still rough idle. Checked the IAT sensor, no continuity, replaced. Still rough...
  10. R

    Replacing O2 sensors and can't get to the connectors, Whats the trick?

    I have two new O2 sensors and have tried to unplug the old ones to no avail..... I can get one hand to touch one and the other is just out of reach. Even if I can get on hand on the connector I don't see me delicately pulling it loose. What's the trick?
  11. J

    Check engine light on then off (couldn't get codes)

    So I was cruising along the highway coming home the other day at a nice 120 KM/H (75 MPH). Got stuck behind a slow moving truck, so put it into 4th and speed up to 140 KM/H (85 MPH) and put it back into 5th. While doing this the check engine light came on. After I put it back into 5th and slowed...
  12. H

    Easy O2 sensor change on a1993 explorer

    Hi all. Well to day I changed out my O2 sensors. I have a 1993 explorer and it is a 49 state federal truck so it has only two thankfully;). The one on the passage side was a real bear last time so this time I thought a bit first how to make it a touch easier. This is what I came up with. It...
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