They are not on all the time.they seem to turn on normal as they did before she threw the cel code.could it have gone away after i topped of the coolant which was low?

 

No, it wont, Not on the 5th gen.

 

Tried to search again but no luck.my p0128 code came back on after 300 miles of driving after resetting the ecu. Coolant is fine. Car does not heat up stays at normal temp. How do i figure out if it is the thermostat or the ect sensor??any help is appreciated thanks.

 

Anyone have an idea??

 

What is the cel? This is extremely difficult.

 

Procedure worked great. For some reason my code reader would not communicate properly with the ECU and this workaround was a lifesaver.

 

Bad MAF. Local garage charged me $120 to spray cleaner on it. Whatever the idiots sprayed burned out the sensor. Purchased a new sensor on the web for $45. Disconnected the battery for several hours and replaced the MAF Sensor (just the meter). Reconnected the battery and it ran perfectly. At least for my 2001 Maxima, a simple reset of the ECU does the trick.

 

You got robbed !
The maf cleaner spray is like $9 and maf sensor is real easy to access

Well she running good and it's all that matters

 

Must i reset my ecu when i install new o2 sensors? Or new spark plugs?

 

Hey guys, old thread I know, but just wanted to ask if there is another way. I used to drive an old '93 Jeep Cherokee, and to reset the ECU you could just take the terminals off the battery then connect them directly for ~10 seconds. This would allow any capacitors in any circuits to discharge. This is similar to pressing the brake pedal and turning the headlights on as well.

Does anyone know if this method also works for the '02? And will not cause any damage?

Thanks guys

 

If I understand you correctly, you suggest to short-circuit your battery by directly connecting its positive-to-negative for about 10 seconds. What an interesting experiment - it should generate quite a spark !!
This thing may indeed discharge all your capacitors, but whether your battery survives this event is open to debate. Go ahead, and let us know what the outcome is!

 

If you remove the battery cables, there is nothing powering the car. So touching the two cables together should make no spark unless there is a charge left over charge in the system. And even if that's the case, it would a minor spark at the least. There would be no harm to the battery.

I think what he meant is to relieve all the electricity from the system and see if that will reset the ECU.

 

Really? Why don't you go ahead and try it ......

 

I have done this on my c6 and it's a non issue.

 

Thank you to the non-stupid responses to my question

EDIT: I did this yesterday with no adverse effects.