Need help on car questions
On the way home I noticed our car had a dangling
cord underneath and we tucked it under more but
on the way home our car 'acted' like it ran out of
gas and we had to pull over where it never started
again. Once we looked underneath we noticed the
cord had been completely ripped off so what could
it be and what happened.
A pictures worth a thousand words
Here is the part that was hanging
That is where it was located, we tried looking for the connection but cannot find it at all
Oxygen sensor
The connection has to be in proximity to the end of the wire. Some of these go through the floor of your car and hook up under seat. You might see a rubber grommet in a hole under car where wire was.
That's your oxygen sensor ... the car should have gotten louder than Hell and the Check engine light should be on ... your performance will go down the toilet and gas mileage will drop. Look between the muffler and the Catalytic converter ... the first thing you need to do is to screw it back into the opening ... don't run the engine before you put it back or you can get burned reinstalling it ... it's no big deal to hook it back up because the wires are color coded but you do need to insulate the 2 wires that go to the O2 sensor heater after reconnecting
Your lucky .. because the plug that was on the end of those wires is still plugged in ... all you have to do is to pg the new one in after you remove the plug from the one that fell out The wires are inside a little duct that runs toward the engine ... you may have blown the fuse that is marked O2 heater ... I've never heard of one of those falling out and you can go on Ebay for a new one at about half the price of an auto store ,,, the threads on yours are probably damaged due to bouncing on the ground
My stepfathers Tundra just had his downstream O2 fall out of the exhaust. It was laying on the pipe. It had no damage and I bolted it back in . I noticed it working on a brake line. No CEL but it was louder than normal.
Would this also mess with my check engine light and produce a bunch of other codes? We had it checked with a reader and it said I needed 3 new parts (throttle body, mass airflow, oxygen sensors, and we replaced the battery) once we replaced them it still won't turn on, could it be how we out the parts in.
The check engine light would definitely come on, those items are most likely different issues. Now the mass air flow sensor and throttle body are related. 1 of those could be affecting the other. I would dial in on the MAF. Try cleaning it first. There is a special spray you can buy. Do not touch the inner parts of this sensor. Just spray and let air dry. Also look for cracked tubing going from air box to the throttle body. See if you have any loose clamps on this air duct. You also could have a failing motor inside the throttle body not operating the butterfly properly. I would also clean this out. You will be amazed at how dirty these get inside. Black gunk.
The first thing you need to do is replace the sensor ( the sensor is not the NO-Start" problem) but it is something that you know has to be done. An engine requires 3 things to start ... Fuel //// Spark //// Air ... it's a scientific certainty that if all three are there in the proper quantities and timed correctly that IT MUST START ! So what;a missing ... Fuel ? Assuming the battery's not dead ... turn the key to the RUN position ,,but don't start ,, once the key is in the Run position you should hear a humming noise for about 5 seconds ,,,, that's the fuel pump and it's probably getting fuel. Spark ,,, remove one of those rubber hoobies with a thick wire ...off the spark plug get a screw driver with a decent plastic handle and put the metal part inside that hoobie (spark plug cover) and get the screwdriver close (about 1/4") to something metal ...then have a friend crank the engine ,,, as the engine rotates you should see a spark jump from the screwdriver to the metal ///// IF YOU HAVE AN OLD SPARKPLUG FROM A LAWNMOWER, MOTORCYCLE OR WHAT EVER plug the wire into it ( be sure the plug is laying on metal) and you should also see a spark ,,, Air ,,,, If your alive while doing the other checks then you probably have enough air, IMO ,,, you either hit something or ran over something ... check all the fuses under the hood ,,, make sure everything is plugged in on the fuse box board .. you may have dislodged a relay or fuse
Tom, I had a Honda Civic that had a no start condition and it was the oxygen sensor. Replaced it and car ran without problems for 9 more years. I have told this to many other mechanics and they doubt me but it is true.
