Reply With QuoteSensors have been know to go bad early in life.
Check the connection anyway to make sure it come disconnected.
By chance, you may have another problem.
I just responded to another post about this, but bring the car to AutoZone
and they will read the codes for free.
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Mitsubishi: O2 Sensor question-2001 Galant-HELP!!
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- 02-04 04:17 PM #1imsjryGuest
O2 Sensor question-2001 Galant-HELP!!
Ok, here's the story. My service engine light came on and the car
started hesitating when I would accelerate. Had a mechanic read the
code and he said my pre-cat O2 sensor is shot. Replaced the part myself
and drove about 120 miles the next day. Car was running great and no
engine light. The next day I start the car and the engine light is back
along with the sluggish performance. 72,000 miles on the car.
Any ideas folks?? What would be causing the light to keep coming on?? I
can't believe a brand new sensor would be the problem.
Thanks in advance..
- 02-04 08:11 PM #2RichieGuest
Re: O2 Sensor question-2001 Galant-HELP!!
- 02-04 08:22 PM #3imsjryGuest
Re: O2 Sensor question-2001 Galant-HELP!!
Well, they read it and it's the same O2 sensor code. I pulled the new
sensor out and it looks fine with no gunk on it.
Richie Rich wrote:
AutoZone
myself
no
back
on?? I
- 02-04 09:07 PM #4TGGuest
Re: O2 Sensor question-2001 Galant-HELP!!
A partially blocked injector will cause hesitation AND quickly ruin an O2
sensor, the converter can also be destroyed. TG
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- 02-04 09:28 PM #5imsjryGuest
Re: O2 Sensor question-2001 Galant-HELP!!
And this can be resolved how?? Any further information would be
helpful..
TG wrote:
an O2
myself
no
back
on?? I
- 02-05 12:54 AM #6TGGuest
Re: O2 Sensor question-2001 Galant-HELP!!
It has to be diagnosed first then the car can be run on injector
cleaner...the real stuff. Sometimes they need to be replaced but at your
mileage they can probably be cleaned...should be done every 30,000 miles.
Make sure that's the problem though
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- 02-05 01:46 AM #7NirodacGuest
Re: O2 Sensor question-2001 Galant-HELP!!
There are injector cleaner chemicals available that might work for you.
If you have a voltmeter, you can check the O2 sensor independent of the ECU.
A quick test would be to compare the two or four O2 sensors with each other.
If the same pre cat sensor is way out of spec, then do look else where
for the cause, before installing a new sensor
imsjry wrote:
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