I recieved code 1-2-3 for #2...and no code for #6. The engine no longer starts -it tries -but doesn't. I see sensor signal/coolant temp on chart-could this be the problem?

Does the car have to running to obtain these code readings?

Thanks again!! billofdurham..I located and open box and plugged lead into #2 & #6..but ...do I hold the activation buton down until I get 3 (3digit) readings ? or press it 3 times to get the 3 number code?

Thanks! in the last 2 pics (in attachment) is this the box? and where can i obtain the tool for pulling these codes?

I changed spark plugs in my Volvo ( thanks!)..and it starts well when cold--I've started it a few times and it turns over well after sitting for awhile Problem1 is if I drive it for 5-15 miles and turn the engine off -it will not restart until I let it cool for 15-20 minutes. Problem2 is I still can...

My Volvo has 100,000 miles and runs pretty good....

my 1995 Volvo 960 sedan..I think I overpaid for it in august '08 but it has run pretty well up til now..gonna change oil and filter, along with spark plugs this weekend

what is the best motor oil to use for 1995 Volvo 960..driven in Pennsylvania, NJ, and Delaware (exclusively)?

Thanks! jablackburn-will get on this as soon as I obtain tools..will let you now how job came out..

I am truly a novice- is this DTC reader easy to locate-