Take A Look At This

[Dmsee]

ok so i have 223 code from A1 socket

http://www.volvospeed.com/Repair/Electroni...ionSocketA1.php

this tells me my TPS is bad

http://au.geocities.com/OZBRICK850/computercodesvolvo.html

this one tells me air control valve

What should i do??

can someone check Haynes and other stuff and see what they getting

pretty much saw TPS code where i looked nothing about idle air control valve

was told that this is mistaken code or whatever

Need to make move (TPS or AIr control valve) :(

[the underlørd]

I'd go with the VS site, personally.

[prasamin]

ok so i have 223 code from A1 socket

http://www.volvospeed.com/Repair/Electroni...ionSocketA1.php

this tells me my TPS is bad

http://au.geocities.com/OZBRICK850/computercodesvolvo.html

this one tells me air control valve

What should i do??

can someone check Haynes and other stuff and see what they getting

pretty much saw TPS code where i looked nothing about idle air control valve

was told that this is mistaken code or whatever

Need to make move (TPS or AIr control valve)

CLEAN THE IAC, REPLACE THE TPS.

[erikv11]

CLEAN THE IAC, REPLACE THE TPS.

I CAN'T HEAR YOU, PRAS!

To clean the IAC is (almost) free, I'd do that first and see if the code goes away. Remove it, some carb cleaner and maybe a few qtips, give it a good flushing.

Then buy the TPS if you still need/want it, mine was $45 free shipping from AutohausAZ.com

[Dmsee]

is there a way to check those two

TPS-voltmeter (current) heard somewhere <_<

[WhiteT5]

DTC information 2–2–3

Condition

The throttle position TP signal is passed from the TP sensor at the throttle body via the transmission control module TCM. The signal tells the TCM how far the throttle damper has opened. The TCM uses the signal in its control functions, among them controlling gear–shifting and the system pressure. The signal normally varies between approx. 0.5 and approx. 4.2 V. Opening the throttle damper increases the signal voltage. If the TCM registers a signal below approx. 0.2 V, (GRUPP II control modules approx. 0.1 V), DTC 2–2–3 is set.

Possible source

-Break in signal wiring circuit

-Short circuit to ground in the signal wiring.

-Contact resistance in connections.

-Malfunction in throttle position TP sensor circuit.

Fault symptom

-Rough gear shifting due to maximum system pressure in the transmission

-No Lock–Up operational.

-Gear–shifting operation can change – irregular shifting.

[erikv11]

DTC information 2–2–3

Condition

The throttle position TP signal is passed from the TP sensor at the throttle body via the transmission control module TCM. The signal tells the TCM how far the throttle damper has opened. The TCM uses the signal in its control functions, among them controlling gear–shifting and the system pressure. The signal normally varies between approx. 0.5 and approx. 4.2 V. Opening the throttle damper increases the signal voltage. If the TCM registers a signal below approx. 0.2 V, (GRUPP II control modules approx. 0.1 V), DTC 2–2–3 is set.

Possible source

-Break in signal wiring circuit

-Short circuit to ground in the signal wiring.

-Contact resistance in connections.

-Malfunction in throttle position TP sensor circuit.

Thanks, very helpful post.

What is the best way to clean the contacts on those connectors?

Cleaning the male end is easy because you can see it. But when I spray electrical parts cleaner in the female side, it makes the old dielectric grease sort of gooey but it never flushes all of it out, always leaves a little bit at the top of the contact female end. So I don't really trust that the contact itself is clean, like it may have some goo from dissolved grease on it.

[Dmsee]

can someone tell what kind of injector system was in 1993 volvo 850GLT

Fenix 5.2

Motronic 4.3

LH3.2-Jetronic

EZ-129 К <_<

[r850glt]

Take a look at your ecu inse the ecu box, it should have the number on it

[Dmsee]

can someone tell me how that IAC looks located? how to clean??

so i can do this tomorrow

[prasamin]

can someone tell me how that IAC looks located? how to clean??

so i can do this tomorrow

yup, don't have a pic, but I'll describe it. it is right in front of the vacuum tree, and it's a 4 inch long silver cylinder with Bosch written on it. it is held on by a rubber ring, and has a hose that goes from it to the throttle body.

just unclamp that part of the hose attached to it, disconnect the wiring to it, and it should slide out of the rubber ring.

to clean it, you will need some carb cleaner, and electrical cleaner. when you pull the IAC out, there will be this little metal flap inside it that is supposed to turn pretty freely as you rotate the IAC gently in your hand. sometimes it doesn't move freely, or not at all. spray the crap out of it with carb cleaner and let all the excess run right through the hole and onto the ground or a towel. let it soak like that for a while, and make sure it's semi dry to dry before trying to install it. when it's cleaned, that flap should just move around freely, without much resistance. it's metal and makes noise when moved, hard to miss.

with the electrical cleaner, you want to clean the connector and the plug on the IAC, and let dry.

also do the same thing on the TPS, pull off the connector, and spray some elec cleaner onthe plug and connector, and let dry, and reinstall.

hopefully this fixes the issue, but if not, try a new TPS for ~45, and if that still doesn't work, you're out of only $45, and you have to move on to the next step, which I have no idea what it is.

[Guest AlvinL]

The one labeled Idle Air Motor...

[prasamin]

The one labeled Idle Air Motor...

or that.

[Dmsee]

by carb cleaner you mean carburator cleaner does it matter if i use brake cleaner?

thanks for reply very helpful! where you saw $45 TPS

and clean TPS with Electric cleaner in all holes?

[WhiteT5]

by carb cleaner you mean carburator cleaner does it matter if i use brake cleaner?

thanks for reply very helpful! where you saw $45 TPS

and clean TPS with Electric cleaner in all holes?

Brake cleaner is probably to harsh to use in this area. Get the stuff that is labeled caburator(sp?) cleaner. Any auto parts store will have it. The female side of the TPS socket... try contact cleaner and then suck it out w/ a vacuum cleaner or blow it out w/ compressed air. From observation however, the problem w/ the TPS is usually internal. When mine failed and threw a code for low voltage, I was curious about its contents.... so I cut it open and took pictures.

Here you can see that as the throttle is opened and closed, there is a little wheel inside that has two contacts attached to it. These slide along two resistance strips. Following Ohm's law, the further along they slide, the less resistance there is, meaning more voltage. With time, these strips simply wear out and start to make only intermittent contact. From my understanding, the TPS on the M4.3 and M4.4 cars is a very basic version of how the ETM's are made and they fail for the same reason.