Error codes that don't exist

480_rocket · Post by **480_rocket** » Mon Jul 05, 2004 2:12 pm

I decided to have a look at the diagnosis system and found I only had one contact in the little box near the top of the strut. I placed the flying wire into it and check for any codes.

I got 2-5-1 and 4-3-4, I'll try again when I get home. Has anyone been succesful?

I was under the impression that there were many holes the wire could go into to check the ABS, fuel, aircon, ignition etc etc.

dragon · Post by **dragon** » Mon Jul 05, 2004 4:38 pm

Which hole had the contact?

480_rocket · Post by **480_rocket** » Mon Jul 05, 2004 5:10 pm

Right, it's a 1992 Volvo Turbo, I have one contact in hole 5. I had some error codes, I see now they are stored in memory. I've now cleared them, I'll just them tonight after a drive.

What have other people got? people go check your diagnositc boxes!

dragon · Post by **dragon** » Mon Jul 05, 2004 7:33 pm

SO which test did you run? Port 5 has 4 functions that you select from with the button, you should have held the button in for 0.5 sec and then released - is that what you did? did you have ignition on or off? If on, was the engine running? The test is designed to be run with ignition on, but engine off I seem to recall. Are you SURE you executed the test successfully?

480_rocket · Post by **480_rocket** » Mon Jul 05, 2004 9:33 pm

I've cleared the memory, then did the 0.5sec test. I have two codes 4-3-4 and 4-4-1 now after a drive. I had the ignition on, engine off when i did the test.

I'll clear the memory again, make sure it is cleared and see if the same codes pop up. Is there anyone who knows what theses codes mean?

pol · Post by **pol** » Mon Jul 05, 2004 11:15 pm

Yep, the turbo only seems to have socket 5...
Try this link... http://www.troublecodes.net/Volvo/ ... Should help.

pol

pol · Post by **pol** » Mon Jul 05, 2004 11:16 pm

And just looking, cant see your codes! Maybe they are the fault codes for faulty diagnostic units!

pol

rpruen · Post by **rpruen** » Tue Jul 06, 2004 1:45 pm

480_rocket wrote:I've cleared the memory, then did the 0.5sec test. I have two codes 4-3-4 and 4-4-1 now after a drive. I had the ignition on, engine off when i did the test.

I'll clear the memory again, make sure it is cleared and see if the same codes pop up. Is there anyone who knows what theses codes mean?

I also have 4-4-1 it resets ok, but returns if the engine is started, then stopped again. No driving is required.

I also seem to be getting 4-5-2 sometimes. That's supposed to be a misfire no 2 cyl. There isn't any sign of a problem though.

Richard.

480_rocket · Post by **480_rocket** » Tue Jul 06, 2004 2:05 pm

Interestting, Volvo should know, mabe they will let me know the codes, it would be useful.

I have two connectors just behind my diag box, that fit together. when I bought the car these were apart. It's a single wire to each connector, been trying to work out if that does anything. I haven't tried connecting them in fear of it frying something!

rpruen · Post by **rpruen** » Tue Jul 06, 2004 7:55 pm

480_rocket wrote:Interestting, Volvo should know, mabe they will let me know the codes, it would be useful.

I have two connectors just behind my diag box, that fit together. when I bought the car these were apart. It's a single wire to each connector, been trying to work out if that does anything. I haven't tried connecting them in fear of it frying something!

I'd be carefull as well. I had a honda civic (spit, bloody idiotic car) that had the same, I thought it can't hurt. No one would be silly enough to put two connectors that connect togeter if it will hurt anything..... Wrong! All the magic smoke escaped from the ECU

BTW in light of the missfire code I went through and cleaned everything that I hadn't done already. Intake manifold, injectors etc. I even squirted a load of redx onto the valves (easy if the injectors are out). If nothing else the injectors don't tick any more, and there is a slight improvement in the driveability of the car.

Here is what I did to the injectors (the spray patern was not that bad before, but not wonderfull either, 2 and 3 being worse).

Took the injectors out. Sprayed intake / carb cleaner into the top to clean the mesh filters. Pluged the top, and cleaned the outside with the same. Shook all the cleaner out, and filled them with redx. I then carefully pressed the little steel bit that sticks out the bottom (with a plastic trim tool) several times. I did this untill redx was flowing from the hole. Quite a bit of black discoloured stuff came out. Then I put them back into the fuel rail, and let them soak for a bit. Then on trying them (engine cold!) the spray pattern was much better. They have also stopped ticking.

Be carefull though, press the pin part too hard and it's all over

Still don't know about that other code though. Let me know if you find anything fron Volvo.

Richard

480_rocket · Post by **480_rocket** » Sun Jul 11, 2004 1:47 pm

I asked a volvo dealer, he couldn't give the codes out but said I should be plugging into port 2.

Anyway, today I noticed I had a 4-5-2 as well, I need to check my temp sensor thats for sure. Bit rough idle when cold.

I have a feeling these codes we're noting down don't follow the list of codes we have. I didn't seem to get any response from port 2.

dralphs · Post by **dralphs** » Tue Jul 13, 2004 12:55 am

try this link

http://www.harrisis.dircon.co.uk/ecu.html

480_rocket · Post by **480_rocket** » Tue Jul 13, 2004 8:30 am

Seems to be for the Fenix injection car, the turbo has a different igntion/fuel computers.

The Great Nothing · Post by **The Great Nothing** » Fri Sep 10, 2004 10:50 am

I checked my fault codes yesterday. I also have a 4-5-2 on pin 5...so according to one of the links above i have a misfire on cyl 2. But no problems with idling or driving - and emissions are fine. Anyone had any more thoughts on this?

The guy who I checked my car over with said that pin 2 was for ABS faults, but was unsure what pin 5 was.

Cheers

Matt
'94 480T

480_rocket · Post by **480_rocket** » Fri Sep 10, 2004 11:27 am

I wonder if it is something related to idle valve. My idle can be a bit dodgy at times. Someone must know?

johnd · Post by **johnd** » Fri Sep 10, 2004 12:21 pm

I had a misfire on cylider 2 on my old ES aswell. Maybe it's default so that Volvo can ask to spend 10 hours working on your car at Â£40 an hour!!!

John

chris1roll · Post by **chris1roll** » Fri Sep 10, 2004 2:54 pm

misfire on cylinder number two is a false code created by the introduction of a new design starter motor, that the diagnostic system interprets as a fault, and can be disregarded.

Murf · Post by **Murf** » Fri Sep 10, 2004 9:19 pm

yeah, stronger magnets on the new type starter motors i think it was

480-Pelle · Post by **480-Pelle** » Fri Sep 10, 2004 11:15 pm

chris1roll wrote:misfire on cylinder number two is a false code created by the introduction of a new design starter motor, that the diagnostic system interprets as a fault, and can be disregarded.

I have a 4-5-2 also but on my diagnostic schemes it says it's a start interlock malfunction. I have also heard this before.
I have never heard of a cyl 2 misfire.
My car is also a -92 Turbo...

EDIT: I know that the code is caused by the starter but in my car it says defect start interlock...

//Pelle

chris1roll · Post by **chris1roll** » Sat Sep 11, 2004 5:08 pm

only if your car is an automatic.....