engine check light

[Guest]

I have a 1997 outback that looks better than the day I bought it new. I
changed the oil on Saturday, and today, Tuesday, the check engine light came
on. Upon looking around, I found that one hose to the back pressure
transducer had come loose. I must have knocked it loose cleaning the
engine. I tried to clear the failure code by turning the ignition switch on
and off three times and starting on the forth time. I had a new transducer
and replaced it. Again I tried to clear the code. I've checked the oil
fill cap, and fuel fill cap...tight HELP!

Thanks,

Captain Marty

 

[Kurt C. Hack]

Have you tried disconnecting the battery for awhile and turning on the
dome lamp to reset the ECU? I believe it can take as long as 30 minutes
for it to completely clear out, but it might be worth a try.
Otherwise,see if its the same code being set, you might have installed a
"new" faulty transducer.

-Kurt

 

[mulder]

I have a 1997 outback that looks better than the day I bought it new. I
changed the oil on Saturday, and today, Tuesday, the check engine light came
on. Upon looking around, I found that one hose to the back pressure
transducer had come loose. I must have knocked it loose cleaning the
engine. I tried to clear the failure code by turning the ignition switch on
and off three times and starting on the forth time. I had a new transducer
and replaced it. Again I tried to clear the code. I've checked the oil
fill cap, and fuel fill cap...tight HELP!

Thanks,

Captain Marty

Cycling the key will not clear the code. Assuming the condition that
set the code has been corrected, it will take a few "driving cycles"
for the light to go out. This means you actually have to drive the car
not just turn the key on and off.

 

[mulder]

Have you tried disconnecting the battery for awhile and turning on the
dome lamp to reset the ECU? I believe it can take as long as 30 minutes
for it to completely clear out, but it might be worth a try.
Otherwise,see if its the same code being set, you might have installed a
"new" faulty transducer.

-Kurt

Doing this is not really the best idea. Although this will make the
light go out, when you do a full reset by disconnecting the battery it
also clears out all the learned data in the ECU for fuel and timing,
and sets everything back to the default values. The learning process
then has to start all over again. This may have a negative impact on
performance and economy until the learned values return to where they
were.
The light should either be allowed to go out on its own, which it will
do if the problem has been fixed, or cleared with a scan tool which
will clear the code without affecting stored ECU data.

 

[Edward Hayes]

A loose gas cap will require up to 10 driving cycles to clear so live
with it for a week or so and see if it goes out. AutoZone will check
and clear the code for you I think. ed

 

[Florian Feuser /FFF/]

A loose gas cap will require up to 10 driving cycles to clear so live
with it for a week or so and see if it goes out. AutoZone will check
and clear the code for you I think. ed

Autozone will check the code, but the one I used this weekend couldn't
clear the code. Maybe because they had a generic scanner only. 15
minutes with the battery disconnected and some pushing the brake pedal
and turning the ignition key cleared it.

You WILL lose your radio presets and time...

Florian