I constantly get the slow response code on my 97 dx. Its the d-16y7 and it has around 200k miles on it. Fuel injectors are original too. Please do not just reply REPLACE O2 SENSOR................. I have already done this numerous times and code still continues. Is there a check list for finding the cause of this code?

 

Check for an exhaust leak.

 

I have already replaced the entire exhaust system. Newer cat and midpipe and rear muffler.

 

Aftermarket exhaust system? The part of the stock exhaust system relevant to P0133 is the header/cat unit.

 

Entire exhaust, cat too. Its a Bosal replacement unit. Before u fault it for the codes, let me just say that the slow response code was also present in the oe honda cat that was original to the car.

I am believing that the actual fault can lie in a faulty fuel injector or injectors.

 

Just realized that it tends to happen more when im running with the AC system on.........

 

RonJ@HT: Do you have a trouble shooting page on the po133 code for a 1997 Honda Civic dx. Its the d-16y7 engine and 5 speed manual trans.

 

--------------------------

 

Okay, Thanks. Ive already done this many times. The problem is more complex than this flow chart I guess.

Would u happen to have the trouble sheet for testing fuel injectors. both Resistance readings test levels and

 

The text below from the diagram suggests that you should look for a poor electrical connection in the O2 sensor connector or the ECU connector.