I just bought a '95 960 Wagon on Friday. I get it home, and it occasionally stalls for no reason, but will start right back up and run with no problems. I checked the FAQ here on how to get the ECU codes, and retrieved a 1-1-5 code. The chart in the FAQ does not list this code, so I search the message archives and found a couple of threads relating to codes 1-1-5 and 1-1-3 and how it was a issue with a "positive feed tie point beneath the intake manifold where 6 green wires are fused into one." The solution being to dig into this harness and re-crip and solder this joint.

A couple of questions:

1) Could this be my problem? I'm just getting the 1-1-5 code, and not the 1-1-3. If not, what else could it be, and how do I determine?

2) If it is this problem, how hard is it to do? I know nothing about electrical beyond the basics, but have done a lot of work on my own cars, and can follow directions well. Is this something I could try at home, or is it best left to a mechanic?

BTW... Other than this problem, I love the car. I bought it from a guy that was about a 3 hour drive away, and it was an absolute joy to drive on the highway. It's a beautiful car, inside and out, and is so comfortable to drive/ride in.

Thanks in advance for any help.

Scot Catlin
Durham, NC

I had a similar problem with out 95 960 (139,200 now), After several months of random stalling and codes 113 and/or 115 being set, I changed the cranshaft position sensor and have now gone over 2,700 without a hickup.. The key data for me was that I would sometimes get a code 113, sometimes a 115 and sometimes both. Fairly random. If all you get is one code or the other, it might be those green wires as mentioned before, but don't rule out the CPS.
--
DEWFPO 1995 964 138,500 / 1998 S90 062,000

I've only read the codes one time, but it only takes one drive or so for the "check engine" light to come back on after reseting the codes. I'll keep checking it to see if I'm getting 115 and 113, and then I'll try the CPS if so. Thanks for the reply.

Scot

I checked the fault tracing book on these codes and no where does it mention anything about the CPS. On a 113 code for the 95 it mentions to check the lead between injection valves terminal 2 and ECM #17 for intermittent short circuit. Also check 55 pin connector in central relay unit (A3/F) terminal 10, injector valve and ECM connector for loose connection.

On a 115 code for the 95 it mentions to check the lead between injection valves terminal 2 and ECM #16 for intermittent short circuit. Also check 55 pin connector in central relay unit (A3/F) terminal 14, injector valve and ECM connector for loose connection.

On the 95 the 55 pin and central relay are located on the drivers side right behind the air filter housing.

Yeah, I definetly need to get the manual like you said before. I'll check Ebay as you suggest. Thanks a lot for all the detailed info. I'm going to dig into it this weekend and see what I can do.

-Scot

It may be that the 95 960s only give a 115 code instead of the 113 and or 115 code in the 92 to 94 960s. That code should mean that the injectors quit either all of them or just one group. The earlier codes indicated 113 for injector group 1 and 115 for injector group 2.

Ground connections are very important in the Monotric system as that is how the injectors operate by ground them at the right time. One possibility is that the power is not getting to the injectors. There is a relay on the drivers side near the large connector(at least is this way on the 92s) that provides power to the injectors. Make sure that is working properly especially at the plug. I had a problem with the red connector at the plug and the engine would just quit when ever it felt like it giving 113 and or 115 codes. I could always restart the engine but only after I turned the key to the off position and then restart the engine. It took almost a year to find the problem and I finally found it myself after numerous trips to a repair shop and hundreds of dollars later.

If you are a DIY person and you don't have a wiring diagram for the 95 spend the money and get one and also one for the monotronic systems especially if you are going to keep the car for any length of time. Intermittant problems are a PITA.

Good luck and keep us posted on what you find. It could be something that no one else as experienced.

Where can I get the wiring diagrams for this car? Volvo Literature? 3rd party?

TIA,

Scot

Your best bet is to try and get the manual through EBay if possible. Otherwise you get it through Volvo Technical in Wisconsin. The manual isn't that expensive if you going to do your own work. It was well worth the money IMO. Make sure you get the manual for the 95 model, I have one for the 92 and it is probably the same but you never know.

You may have read some of my posts. I am currently having 113 and 115 codes. I think the 95 year you may only get the 115 code. Someone suggested to me that the power leads under the intake manifold needed to be resoldered. I took the 4 hours to do it and it had no effect on the codes. Someone also had the same problem and changed out the crank sensor and it cured it for him. I am going to check some wire leads per a volvo fault tracing manual I have. If all checks out I will replace the crank sensor too. Hope that will work for me, I will let you know.

DanR 94 964 206k miles
--
DanR