Hey Hey,

I have an 850 turbo wagon that shows EGR, EGR temp sensor, O2 sensor, and catalytic converter. I finished a head gasket job and replaced the O2, EGR and temp sensors in the process. It ran fine for about a month, then started acting up. I have also replaced the fuel pump and filter recently. Hesitation keeps me from driving farther than I can push it if it breaks down, but haven't had it stall on me yet. Any ideas?

Thanks

 

Is there any kind of O2 code again?
If you are pressing on the gas hard does is start slowing down?

 

Evidently there are two O2 sensors. I replaced the rear. As the power loss begins, stomping on the gas and causing a downshift results in a surge strong enough to smoke the tires. At a steady 35 mph it's more of a surge and loss effect. I have reset the check engine light after replacing each of the individual flashing codes and it does fine for about 100 miles, but as soon as the light trips back on the problems resume.

I hope that helps, thanks.

 

The front might be bad now.