Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: x25xe on 20 May 2007, 21:59:29

Title: I have a feeling....................
Post by: x25xe on 20 May 2007, 21:59:29

That my crank sensor is about to die.  Symptoms are as follows:

1.   Took three goes to start the car today.  Subsequent starts (2) were fine
2.   Sometimes the EML extinguishes immediately, on other occasions, like all the starts today, it takes            longer (around 3 - 5 seconds) to go out.

I have not done the paperclip test as yet.

Can anyone comment on my diagnosis please?

Title: Re: I have a feeling....................
Post by: TheBoy on 20 May 2007, 22:00:51

Quote

That my crank sensor is about to die.  Symptoms are as follows:

1.   Took three goes to start the car today.  Subsequent starts (2) were fine
2.   Sometimes the EML extinguishes immediately, on other occasions, like all the starts today, it takes            longer (around 3 - 5 seconds) to go out.

I have not done the paperclip test as yet.

Can anyone comment on my diagnosis please?

go on, be a devil, shove a paperclip in.....

Title: Re: I have a feeling....................
Post by: x25xe on 25 May 2007, 10:55:21

Back a day early from my week away on the Isle of Wight, so decided to do the paperclip test.

Sure enough, code 19 is present so I will take a walk to the stealers to get a new sensor.

I did the test twice, firstly with the engine stopped and then with it running.  I got different codes as follows:

Engine Stopped:

13  Oxygen Sensor No change in volt / open circuit
15  Coolant Temp Sensor High Volt
19  RPM Signal Incorrect

Engine Running:

19  RPM Signal Incorrect

So, question is, is this normal or have I got other things to worry about?

Title: Re: I have a feeling....................
Post by: midnightmower on 10 June 2007, 12:03:46

Hi
My X25-XE has failed the MoT because of excessive emissions
Diagnostic showed the same codes you described when engine stopped
but no codes when running but the e m l does come on intermittently
check of values of both sensors after failure of MoT showed both oxy sensors operating close to each other and engine running Lean except when throttle blipped when it when rich.
The tester and I are baffled

Title: Re: I have a feeling....................
Post by: JasonH on 10 June 2007, 12:48:27

You need to find out what's causing the EML light to come on. It will be one of the faults logged and indicated when the engines not running.

Your emissions could be an exhaust leak before the O2 sensor. (Lets air in confuses the O2 sensor and ECU).

Title: Re: I have a feeling....................
Post by: Marks DTM Calib on 11 June 2007, 14:07:05

Quote

Engine Running:

19  RPM Signal Incorrect

So, question is, is this normal or have I got other things to worry about?

Crank sensor is failing.....

Title: Re: I have a feeling....................
Post by: TheBoy on 11 June 2007, 14:10:20

fix the 19, i bet the others will then also disappear....