98 Civic CX battery drain

I've replaced both the alternator and battery on my car but for some reason
when it runs i can see my headlights pulsing to a dim. It happened in stop
and go traffic one night where it just killed all the electric in my car.
I know it has something to do with the accident i had recently but i
didn't think it was that major so i got some ODB scanner codes and was
wondering if anyone knew if these had anything to do with the problem.

p0501 speed sensor a (range/performace)

p1298 Manufacturer control fuel air metering

p0135 sensor heater circuit malfunction

p0141 sensor heater circuit malfunction

If anyone know how to fix these either the info would also be appreciated.
Thanks.

 

O2 heater circuit malfunctions. i has a 0135 on my 98 hatch, it was the
oxygen sensor in the manifold. 0141 is likely the bottom one.

i think theres a bigger problem tying all this together myself,
personally. i dont think all your sensors are going haywire all at the
same time, unless youve REALLY neglected the car, put really really bad
gas in it, or something else major.

id test the O2 sensors... if they test out ok, then it might be a bad
computer?

 

Were you hit pretty hard? Maybe the ground strap from the engine to the
chassis broke loose.

If the battery came loose from it's mounting, maybe it broke the cables
internally. Maybe it pulled on the ground connection just enough to make
the bolt loosen a bit.

Loosen the ground cable from the battery and retighten it. Same with the
engine to body strap.

 

Well i sorta rear ended the person and it wasn't all that hard. Most
everything was in place except the front part of the frame was bent inward
a little. The other persons car didn't take any damage except scratches.

 

any suggestions on how to test the O2 sensors? i really have no idea how i
would do that.

 

Could be the ground strap or a ground in a wire off the cpu.. All the codes
don't have much to do with each other.
Steve

 

im guessing a bad wire somewhere, too. i rear ended a car in 99, no
damage except a scrape to my bumper fascia.

a few months later, my speedo died and the car was acting funny. i took
it in and it was fixed under warranty. dealer said a wire was knocked
loose and was chafing against something.

i didnt attribute it to the accident, since no external damage was done
and the problem didnt crop up until months later.

but that would make more sense than all your sensors going bad at the
same time.

id have no idea where to begin even looking for the problem. i do know
the O2 sensor wires loop around the engine, then under the intake manifold.

id try to find where they all tie in together, and check for damage there.

 

The accident loosens, severs the charging unit's connection to the
battery, pulsating the headlights. The headlights drains the battery to
a low point then set off OBDII codes erroneously When the voltage
goes under 7 the car stalls. The charging indicator didn't show up
because the alternator still works but not supplying. You might want
to trace between the battery and the alternator.

 

Hey i think i found out what's wrong with it. But i wanted to see what you
all think. Well i took a look at the car again and found the O2 sensor on
the front has the blackwire strippedish. The insulation around it is sorta
gnarled off and part of the wire is shredded. That is unless that isn't an
o2 sensor i'm looking at and the guy from autozone lied to me. Would that
be the cause of a battery drain?
here's a link to the picture
Http://909confessions.com/o2.jpg

 

Hey i think i found out what's wrong with it. But i wanted to see what you
all think. Well i took a look at the car again and found the O2 sensor on
the front has the blackwire strippedish. The insulation around it is sorta
gnarled off and part of the wire is shredded. That is unless that isn't an
o2 sensor i'm looking at and the guy from autozone lied to me. Would that
be the cause of a battery drain?
here's a link to the picture
Http://909confessions.com/o2.jpg

 

that is the upper O2 sensor, and IIRC, the black wire is a wire for the
internal heater. it possibly could cause a drain... not sure. it could
also trigger the P0135 code as well.

worth fixing, and clearing the codes. if you still get a P0135, it might
be worth replacing... if you STILL get a P0135 code after replacing,
something else is messed up.

id probably fix the wire, then test the (IIRC, not sure) bottom 2 wires
wit an ohmmeter. should be a reading between 15 and 40, or something. my
helm is in the garage and its 2am, so im not gettin it

 

Hey i have a question for you guys, you think the car can run without the
o2 sensor hooked up at all? cause i wanna test it to see if the battery
drains after it's removed but i don't wanna do something that'd further
damage my car.

 

itll set a code, and likely run like crap and stall. if its running like
crap and stalling, youll never get a good voltage reading and youll be
restarting the car every time you come to a stop. which will drain the
battery...

 

hook the bottom 2 wires from the sensor part of the harness to an
ohmmeter. if it reads ) the sensor is toast.