I finally got a code yesterday afternoon; P0422. Of course I Google it and it state something about the catalyst threshold. I immediately assumed catalytic converter and contacted my mechanic to come and get my Volvo. After more research I realized it could still be a number of problems. I will try ...

Update: I am pretty sure the MAF sensor isn't bad because when I unplug it there is no change. I cannot figure out how to get to the throttle body and there aren't many videos on my make and model without being turbo.
I was going to test my fuel pressure but obviously need a schrader valve tool ...

I really appreciate the responses. I am afraid the battery could be bad. I am going to purchase a new one and I will get back with you all. If that is the only issue, I would be ecstatic.

First of all, I apologize for giving such little info. This is a 2001 Volvo S60 2.4t. I have been on Google and YouTube trying to figure the problem out. Now that my car is home and I try to start it, it dies and I have to recharge the battery. Because of that it's not reading any codes. I did pull ...

On my way home my Volvo started slowing down and when I pressed the gas it still wouldn't go. Every time since then I've tried starting it but it shuts itself off immediately. If I press the gas to the floor when I start it, it will stay running but it's still not getting any gas.
I'm wondering if ...