Engine Code 113 long term fuel trim. Any suggestions....
 

My engine has a code of 1-1-3 could this have anything to do with a prior code for the knock sensor? Also any ideas on fixing it would be helpful.

Thanks

RE: Engine Code 113 long term fuel trim. Any suggestions....
 

Greetings.

>Also any ideas on fixing it would be helpful.
A chisel & a heavy hammer[8D].

Just kidding, please ignore my lame sense of humor; I currently live in Japan, what can you expect?

I did not find 1-1-3 for turbo, so I believe your 850 is NA? Let us know what engine you have, as well as the model year of your 850.

Code 1-1-3 is:
Bay-13: Long-Term Fuel Trim Lean.
Volvo Manual: Heated O2 Sensor Integrator at Max Enrichment Limit.

Perhaps there is a fault in the heated O2 sensor wiring (short), or the sensor has served its lifetime (O2 sensors are consumables). Or more likely there is a vacuum leak downstream of the MAF sensor, causing a lean mixture.

Here's what I would do other than the chisel & hammer method:

1. Check for vacuum leak, most likely from cracked vacuum elbows/lines.

2. Test or replace failed O2 sensor. To test it, you need a manual, a multimeter and basic knowledge to work on electrical/electronic systems.

3. Clean the throttle body really good.

4. Replace the air filter with OEM (MANN) filter.

5. Dump a large bottle of Techron fuel system cleaner into a half-full tank.

I may have missed other options, so wait till other members show up.


JPN

RE: Engine Code 113 long term fuel trim. Any suggestions....
 

presse,

Please give us more info on your car (type and engine).

I was thinking of MAF sensor / vacuum leak / O2 sensor. Apparently your car is not turbo since 1-1-3 is not defined for Motronic, so if there is no MAF sensor, vacuum leak and O2 sensor are the first places to check.

If you have opened the air filter recently, check the small hoses that attach to the air box.

Regards

RE: Engine Code 113 long term fuel trim. Any suggestions....
 

It's a '94 850 wagon. 5cylinder 20 valve, not a turbo.

RE: Engine Code 113 long term fuel trim. Any suggestions....
 

Any news? Did you do JPN's recommended checks?

RE: Engine Code 113 long term fuel trim. Any suggestions....
 

Axel,

Let's hope that he has solved the problem, the car is running great and he's cruising around happily, saying "My car runs great again!! Thanks to that J@p b@st@rd!!"

.....[8D]

BTW, I'll be relocating and the ISP said it takes a month to set up DSL connection at the apartment I'm moving in by the airport. Why take so long? God knows why, but I guess they're too busy furnishing people in Japan with fibre optic lines. I'll just stick to generic 50Mbps DSL (nominal speed, and the actual speed drops to something like 5Kbps when all neighbors start getting on line...:().

I'll try to find an Internet cafe at ornear the airport (NRT: Narita), but if I didn't find one, see you in a month.


JPN

RE: Engine Code 113 long term fuel trim. Any suggestions....
 

Yes JPN, I am cruisin' pretty good know. I checked vaccum lines and found a leak. Also changed the fuel pump relay which seemed to be the real problem. All the other things you mentioned had recently been done as the engine had some rebuilding done. She really purrs now. The only thing now is there seems to be a tinny rattle in the drivers side rear wheel. My mechanic thinks it's coming from the front end sway bar but I only hear it when the rear driver side tire hit a bump. Any clues?