Can anyone help me with this. Do i need a new ecu? If so what kind for a 98 civic ex?

 

Here is a neat little code checking utility someone showed me:

OBD1 & 2 Code Checker

P0133 seems to be related to your O2 sensor.

 

thats a good site thanks a lot

 

P0133------->O2 sensor slow response

It will probably need an updated computer. It's a warranty item for 8 years or 80,000 miles...

 

I know the OEM must warranty their catalytic converters for 100k miles, I do not think that same warranty applies to the O2. Just beuase the computer says it has a slow response does not mean the ECU is bad. The O2 can become clogged up and lazy over time.

 

i replaced the 02 sensor a year ago and the dealer told me that if my o2 sensor was new then the only other problem must be the ecu.

 

Maybe my response wasn't clear. Honda has a service bulletin to fix this problem (#99-049). If you have under 80K miles on your car, Honda will pick up the bill.
If you have more than 80K, you'll pay about $1000 parts and labor...

 

i have a 106,000mi

 

i was told that i could get a used ecu for 50 or so and that the install was just plug and play. Why would it cost a 1000 plus from the dealer.

 

A new computer from the dealer is a little over $800.00. Labor and tax will get you to about $1000.00. Keep in mind the new ECM will be an update to fix this problem. If you buy a used computer, chancer are you'll have the same problem.

If I were you, I would just clear the light and drive. It may be another year before you set the code...

-Troll-

 

just clear it if you are only getting this code once a year who cares . honda has ecu's that just reduce the sensitivity of that sensors imput.it will not make your car run better .discout auto parts (advanced auto)clears codes for free.if it becomes a constant problem then concider the new ecm.