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106

Omega Electrical and Audio Help / Re: 12V Pumps in Cooling System

« on: 29 September 2022, 18:57:09 »

Strange, my colors do not match but they are from real life.
Homework part 2:
Engine hot, cabine cold, set point HI, auto pressed, ignition off
0.4V in second pump
and when air condition off but ignition on
0.4V
and when air condition off and ignition off
0V

So if no relay bad contact somewhere, if relay the perhaps broken relay.

107

Omega Electrical and Audio Help / Re: 12V Pumps in Cooling System

« on: 29 September 2022, 16:57:04 »

DR-Grün could be dunkel rot... which is dark red-green, which language is in use in these colours?

108

Omega Electrical and Audio Help / Re: 12V Pumps in Cooling System

« on: 29 September 2022, 16:21:57 »

So, part 1 of my homework:

First pump behind the radiator, a) red with green stripe b) brown
Second pump below tank pumping to heater mtx, a) black with blue stripe b) brown

109

Omega Electrical and Audio Help / Re: 12V Pumps in Cooling System

« on: 29 September 2022, 13:21:06 »

Thanks, I do my homework as soon as back home, now at work with bicycle so have to heat up Omega first.

Found this old thread.
http://www.omegaowners.com/forum/index.php?topic=130392.0
There someone say that F15 feeds M57, lets see the colors of wires...

110

Omega Electrical and Audio Help / Re: 12V Pumps in Cooling System

« on: 29 September 2022, 10:53:44 »

1. At least Finnish version do not give a temp, If someone have other language versions available would be interesting to check.
2. Pump tested yesterday with 12V supply, it spins and I can hear that the water start to circulate. Might be the relay, I get 0.4V there to the wires. Which relay it is? I saw No. 22 here for X25XE and X30XE Lower one! Perhaps the lower one is for Y26SE and Y32SE Which I have (Y26SE)?? Relay 22 is named 'Pump Coolant' but is it for first pump or for second pump or is this relay for northern countries' second pump somewhere else?
Here
https://www.omegaowners.com/forum/index.php?topic=90458.0

111

Omega Electrical and Audio Help / Re: 12V Pumps in Cooling System

« on: 29 September 2022, 09:27:11 »

Thanks DG for your quick (as usual) reply.

1. Yes cab sensor is ok; when driving and having set point in both sides e.g. 20°C fan speed is low and silent. When changed to 22°C fan accelerates and start to push hot, when changed to 18°C (from 20°C) fan accelerates and start to push cold.
2. I was in my garage and engine was only warm not hot, motor was hot earlier so the outside temp sensor might still have seen hot temperature. But I remember I put temp set point to HI. Anyhow, I repeat this all outside tonight with hot engine and report back.

112

Omega Electrical and Audio Help / 12V Pumps in Cooling System

« on: 28 September 2022, 17:21:43 »

Hello all

As I live here in the north my Omega is equipped with two electrical pumps in cooling system. First one is behind the radiator and I beleive that every Omega has that. The second pump is installed to the hose going to heater matrix. As far as I know the idea of this second pump is to increase hot water flow throught the heater matrix in these cold countries. On the other hand according to the owners manual that second pump should circulate hot water in heater matrix when ignition is off and 'Auto' button is pressed. This pump together with the fan should keep the cabin warm as long as engine have some heat left.

This second pump works well as I tested it with 12V source. When I press Auto in cabin the fan starts to rotate but only 0.4V comes to the wires connected to the pump (measured when not connected). Where is that current coming from, is there a relay somewhere? Everything else works fine in the car so guess all fuses are ok.

113

Omega General Help / Re: Gear Box Fault Code from "Engine Side"

« on: 03 August 2022, 10:11:25 »

Sorry, during I was writing TB answered already...

114

Omega General Help / Re: Gear Box Fault Code from "Engine Side"

« on: 03 August 2022, 10:10:23 »

Thanks for comments, let's see.

Code P0725(4) "Engine Speed Input Circuit Malfunction" Is this that something that 'Engine ECU' does not know Vehicle Speed or 'Gear Box Control System' does not know Engine Speed?

I changed some years ago the Selector Switch so that should be ok.

115

Omega General Help / Gear Box Fault Code from "Engine Side"

« on: 31 July 2022, 16:20:40 »

So all ok, only bank 2 Lambda 1 should be changed as it is lazy (2.6 V6, Auto AR25). Cleared that code from Engine Side today but found that there was another code P1700( "Service Vehicle Soon Request from Transmission Control Module". When I checked fault codes from Gear Side I found P0725(4) "Engine Speed Input Circuit Malfunction".

What is going on? RPM meter and gear box work normally. Where do the Gear Box get the Engine Speed Signal?

116

Omega General Help / Re: Lambda 1&2 Spare Numbers for V6 Y26SE

« on: 12 July 2022, 14:15:32 »

OK, thanks yes, what I need is sensor 1, I am afraid that it is sensor 2 if "rear" means that. Then 9195606 would be the one I need?

http://oemcats.com/oem-parts/9199469.html this is according to link for "rear exhaust pipe"

117

Omega General Help / Re: Lambda 1&2 Spare Numbers for V6 Y26SE

« on: 12 July 2022, 08:09:14 »

And autobox if that is important to know.

118

Omega General Help / Lambda 1&2 Spare Numbers for V6 Y26SE

« on: 12 July 2022, 05:32:03 »

Hello, cannot find the page where spare numbers could be checked, some kind of "ZAP" or something...
But, is this sensor No.1 or are all the four sensors for V6 Y26SE the same? As far as I know sensor No. 1 is before pre cat.

119

Omega General Help / Re: Codes 0130 and 0150

« on: 09 July 2022, 14:56:40 »

Found 1#9199469 855385, price 100 euro. Is this sensor 1 or are all the four sensors for V6 Y26SE the same?

120

Omega General Help / Re: Codes 0130 and 0150

« on: 28 June 2022, 17:32:01 »

Succeeded to get some live data; B2 short term trim is now and then just straight line and B2S1 is "lazy" as someone said here. Leaks in exhaust not yet checked as two persons needed for that. Perhaps I order new sensor?