Hi Folks,
Just got my first Volvo: a one owner 1998 Volvo S70 2.4L non-turbo with 130k original miles. My initial excitement at the near mint condition has slightly waned at a new check engine light.
I immediately got the Timing Belt and sundries (water pump etc) replaced last week and this week I got the Check Engine light and the code 19172 "too rich". Could this have been caused by the recent work. Looks like this is either MAF, Oxygen Sensor, or Vacuum leak.

I am a newbie so any help is appreciated with finding a vacuum/hose diagram for this model so I can check them for cracks. (Any advice on how to check condition would be great!)
Couldn't find anything exactly with Robert DIY at the moment but still researching.

Thanks again for any help pointing me in the right direction.

 

My general thought is no, that it's not really related. It's pretty hard for something to happen that makes the car run rich. A dirty MAF and vacuum leaks will make it run lean. If you have a misfire, it would set a misfire code. So really, I think it ought to be high fuel pressure, a leaky injector, or the O2 sensor. It's possible that it didn't set a sensor code because both sensors agreed it was rich. I don't know, though.

 

Thank you @firebirdparts , This is very helpful and I appreciate the response!
O2 Sensor and Leaky Injector I am confident I could find enough information on to replace or at least check. Can you point me towards anything on what do do about high fuel pressure? Is that changing fuel filter and pump or something more serious?

Main question - can I drive this 60 miles total, to and from work each day until I can get into Volvo (first appointment available is in 1.5 weeks)? I dont want to do serious damage by driving.

 

Have you erased the codes and seen how long or if it comes back? Has anyone checked fuel trim to verify it really is running rich? What is the fuel pressure?

What scan tool are you using?

 

I agree. I would immediately check fuel trim.

If you don't have a scan tool, I think it's safe enough to drive it. if you get misfire codes, it might not be safe to drive. The catalytic converter gets amazingly hot when you have a dead misfire. you can actually just smell the exhaust and you'll know if it's rich or not. A car in good trim running fully warmed up doesn't really emit much of anything with an odor in the exhaust.