Tach needle

[Bidness]

Hey you guys & gals
I have 93 ATX with 141k miles. I ran codes from Autozone the other day, I have 2 bad O2 sensors and the EGR valve is detected as not opening. How may o2 sensors do the SHO's have total? I know I have to get those fixed.Which should I do 1st , funds are limited right now( recent divorce)
Also as I cruise back and forth to work I notice the tach needle moves around a little , especially under a light load maybr +/- 100 RPM's.
Old school sez something in the ignition, usually plugs , wires. I replaced those last year. What does new technology say to look for. Any help is appreciated.

 

[sdpatt]

What are the codes? It is rare for both (two) O2 sensors to both fail coincidentally. There is a chance that the cause is actually an engine control problem. Post the codes and you will tap into a great deal of SHO experience right here.

 

[Bidness]

The CE light has been on for a while, even after my 60k service was done(june 2002). I had the O2 sensors repalced, the EGR cleaned, I asked that while the intake was off to clean that also. I don't think it was done. I'll have to go back to Auto Zone and redo the code check. I can't find the print out. I do remenber the papers saying something to the effect of left/ right sensors were bad. I don't remember the exact wording. I aslo check the front pug wells and found no oil inthem. I can't get my big hands to the rear one. Do you or anyone else know of a good SHO people/ mechanic in NC. I'm about 100 miles from Raleigh, Charlotte and Greensboro.

 

[sdpatt]

Please click on the links at the bottom of my signature block and learn to read the codes yourself. It is a simple, free and essential diagnostic tool.