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1

Omega General Help / Re: Pre -FL 3.0 no start..

« on: 06 June 2016, 14:58:11 »

It lives!

Drained the tank, flushed the lines out, swapped the filter and after plenty of cranking it finally fired up!

I reckon there was a good couple of litres of "milk" floating about, either in the tank, the swirl pot, the filter or the lines.

Many thanks for all your assistance along the way.

2

Omega General Help / Re: Pre -FL 3.0 no start..

« on: 04 June 2016, 18:16:36 »

That's where my logic failed me..

I was thinking it would better to flush the lot out by dismantling everything (already removed the top plenum..) being the best way to make sure I get the water out?

3

Omega General Help / Re: Pre -FL 3.0 no start..

« on: 04 June 2016, 17:59:13 »

It seems there's water everywhere - not much in the tank now, but certainly plenty in the filter!  Now to flush the fuel lines and fuel rail.

Next question - how do you remove the fuel rail?

4

Omega General Help / Re: Pre -FL 3.0 no start..

« on: 03 June 2016, 21:34:20 »

I think I've found a highly probable cause - water in the fuel (enough to turn it to milk).   That'll be what happens to a non-sealed fuel system, 12 months off the road and this new-fangled Ethanol-laden water-absorbing fuel we have nowadays...

Only spotted it when I disconnected the fuel pressure tester and saw a white froth coming out of the Schraeder valve..

5

Omega General Help / Re: Pre -FL 3.0 no start..

« on: 03 June 2016, 12:48:17 »

Purge valve?  Didn't come across one when transplanting anyway.  Only item I had to "fool" was the SAI valve system - relay is there so it thinks it's doing something and not flag a fault code (SAI ports blanked off anyway) and the same with the EGR valve - it's fitted an electrically connected but the exhaust "input" is blanked off.  I've fitted C25XE exhaust manifolds so no EGR port fitted to them anyway.  Don't think I've ever disconnected the CTS to be fair.

Didn't get anything apart from a quick "cough" with the MAF disconnected but the battery was flagging at this point (to be fair, the "cough" is more than I've had for a while!).

6

Omega General Help / Re: Pre -FL 3.0 no start..

« on: 03 June 2016, 09:27:21 »

I did buy an "My Naff Code Reader" years ago but doesn't seem to work - fault codes have been extracted by the Paperclip Test 

Might have to find someone local with a Tech2...

7

Omega General Help / Re: Pre -FL 3.0 no start..

« on: 03 June 2016, 09:14:35 »

I did (as a test) disconnect the MAF (so it might have a go at starting in Limp Home Mode) - got one cough from it but nothing more.

8

Omega General Help / Re: Pre -FL 3.0 no start..

« on: 03 June 2016, 09:11:52 »

NOID lights should be here today to check for the injectors firing.

Fuel pressure tested at the Schraeder valve point on the fuel rail.

9

Omega General Help / Re: Pre -FL 3.0 no start..

« on: 03 June 2016, 08:19:24 »

Well we have a spark at least..

I did notice the battery (that I had on charge for 2 days seemed to run out of puff quite quickly - wondering if a below par battery would cause issues?   Bit annoyed as its a Bosch silver with a 4 year guarantee that I only bought 2 years ago..

10

Omega General Help / Re: Pre -FL 3.0 no start..

« on: 01 June 2016, 22:15:32 »

Crank sensors - ah yes.

I have (from a friend who isn't running Motronic anymore) one Bosch and one Siemens sensor (both rounded plug versions).  I think he got them from Vauxhall but might have been elsewhere.  They are genuine though - he wouldn't have spent c.£80 a piece on junk ones.  He bought them trying to find an issue that turned out to be his shiny new ECU, not the crank sensors after all.

Anyway - have tried both and a £20 eBay cheapie (worked last time proving another fault).  Same result - no start

If it's any use, I'll get the numbers off the actual sensors - I have a feeling the one should only be fitted to a specific 2.5 variant?

11

Omega General Help / Re: Pre -FL 3.0 no start..

« on: 01 June 2016, 21:56:48 »

Done both relays - even bypassed the pump one "just in case"..and happily heard fuel (and got 3 bar pressure according to my gauge) flowing through.

12

Omega General Help / Re: Pre -FL 3.0 no start..

« on: 01 June 2016, 08:12:35 »

Yes, it has been running in its new home for 3 years. 

Spark tester is on its way - as soon as it arrives I'll be checking for sparks.

13

Omega General Help / Re: Pre -FL 3.0 no start..

« on: 31 May 2016, 19:51:51 »

Not sure if it's a red herring or not but the ECU light goes out after a few seconds of cranking - in the past its stayed lot if there was a major problem.

14

Omega General Help / Re: Pre -FL 3.0 no start..

« on: 30 May 2016, 08:22:36 »

I did try full throttle but assumed that was "flood clear" mode so didn't expect that to work.

Will check again for spark (had spark before I think) although didn't check yesterday.

15

Omega General Help / Re: Pre -FL 3.0 no start..

« on: 30 May 2016, 08:01:40 »

No throttle or some throttle - no joy either way 

I did wonder if the ISCV was duff it still might fire with a little throttle - not even a cough though.