After 25 years with 700/900 VOLVOS, I do know this; do not rely solely on any codes you pull. It is first generation OBD & does not always trip the 'puter, many times the code is a result of another problem that eventually affected the code producing event. Although it can point you in the right direction (the post suggesting the MAF is a good start), many times there are other problems that are peripheral to the identified problem that must be addressed for a complete fix.

In your case, after checking the MAF, look for vacuum leaks, intake hose leaks (you didn't mention turbo or not), plug wire arcs, and even some more esoteric items such as fuel pressure & flow.

You did not mention if the check engine light came on which is supposed to happen when a 1-1-3 code is thrown. If not, it just goes to show the iffiness of OBD-I codes.

Wipe the codes and run the car again, then pull the codes again to see if they recur.

One thing I did long ago was to pull ALL my relays and re-solder ALL of them, haven't had a relay related issue since, over 10 years.

Check your Power Stage, make sure it is solidly connected to the fender & that the wiring connections are clean.

Good luck, write back.
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1999 E320 1994 F150 1989 560 SL 1986 560 SL (deceased) 1988 300 TE (departed) 1994 945T (daughter's) 1988 244DL (fallow) 1986 242Ti (fallow) 1968 GT500KR (under restoration)

Hi Greg,
I have the same car as you and had a similar symptoms recently. In the end, a new MAF fixed it.

You can read about my problem here from the original thread:
http://www.brickboard.com/RWD/volvo/1425950/940/960/980/V90/S90/intermittant_pinging_hesitation_idle_probs_code_113.html

Code 1-1-3 is a lean misfire. When I disconnected my MAF, the car idled smoothly. Unplugging the MAF enriches the air/fuel mixture which compensated my my car's lean condition. When I plugged my MAF back in, the idle would surge and engine would miss and ping under load.

See if you can find a good used one or a reman one. I got stuck paying full retail plus several hours of troubleshooting from my Volvo $hop.

Good luck,
Chris
'93 945T 191K

Hi Greg. I mean this with the sincerest attempt at offering help. Go to the 700-900 FAQ and read the first few paragraphs and You will see where to go(click) next. That said My latest 113 error code excursion resulted in cleaning the throttle body($1 for a gasket and $4-5 for a can of throttle body cleaner), cleaning the IAC(another $4-5 for throttle body cleaner) and the car ran really good. New vacuum lines(about $20 in silicon hose from a site in the 700-900 FAQ), new plugs, wires, rotor, cap, a small mayonaise jar of water through the intake vacuum(free, the mayonaise jar was empty and headed towards recycling)and it ran great. This was on a 1993 240 Volvo with 180,000 miles that was purchased for $500 as it was headed for the junk yard. The FAQ has pictures and enough directions for even an old guy like me who was a business guy can figure it out. You've got a great car with low(for a Volvo) miles that probably just needs some attention. That said there is no one good answer. Oh and clean all the grounds and make friends with the 700-900 FAQ and you will be amazed at how much will resolve itself with a bit of your thoughtfulness and bravery. Good luck and write back. One last thought; the best money I have spent on making my life fun as I play with old volvos is to buy the wiring diagram book printed by Volvo. It tells you where everything is(from relays to brain and everything else), the color of the wires, put together in sections by function.