Omega Owners Forum
Omega Help Area => Omega General Help => Topic started by: Agemo on 24 July 2008, 16:59:59
-
Hi. Went out to the car the other day, would not start, turned over but not firing. Tried a brand new coil pack this morning, still no joy. There is no spark at the plugs. Any ideas???
:-/
-
Do the paperclip test :y
http://www.omegaowners.com/forum/YaBB.pl?num=1189022687
-
crank sensor may be worth a check :)
also, the imob light isn't flashing is it while your trying to start it?
-
As above paperclip test it first. See if any codes come up. Code 19 relates to crank sensor.
Is it getting fuel ?
-
Thanks Gents, done paperclip test, came up with 144 31 as usual, plus 74 (airflow sensor Hi voltage) It gave the same codes before I changed the coilpack. I know it looks like I have forgotten to connect something, but I have had a very very good look. The coilpack was brand new, if it was from a scrapyard I would suspect it was faulty. If it was the ECU, would there be a different code?
As for crankshaft sensor, maybe worth a try.
-
My money's on the crank sensor!!! Paper clip it to get the codes!
-
Thanks Gents, done paperclip test, came up with 144 31 as usual, plus 74 (airflow sensor Hi voltage) It gave the same codes before I changed the coilpack. I know it looks like I have forgotten to connect something, but I have had a very very good look. The coilpack was brand new, if it was from a scrapyard I would suspect it was faulty. If it was the ECU, would there be a different code?
As for crankshaft sensor, maybe worth a try.
if it gave the same codes before then its something in the dismantle, rebuilt process.
Have you checked the routing for ignition leads as the dont really follow a logical pattern at dis pack end ? I have a diagram i alsways follow but its at home and me in office....
-
I made a diagram and followed it so I know the leads are right, in any case there is no spark at the plugs. :-X
-
By the way the imob light does not flash when the engine is turning.
-
is it getting fuel?
-
Fuel, good point, although I am not sure how to check, it certainly has a full tank, but no excessive petrol smell. Is there a test?
-
Fuel, good point, although I am not sure how to check, it certainly has a full tank, but no excessive petrol smell. Is there a test?
Yes disconnect a fuel line and try cranking it........should pee petrol out :y
Or slightly better.......get someone to crank it while you listen in the boot (take the carpet out first and take off the plate on the boot floor covering up the fuel pump) you will be able to hear the pump if its running :y
BTW how did you test for no spark? You didnt lie the plug on the cam cover and crank it did you?? Coz if you did the cam covers are plastic and wont give you an earth :-/
-
If there's genuinely no spark lack (or otherwise) of fuel is a red herring ---- need to establish a spark first
-
Yes disconnect a fuel line and try cranking it........should pee petrol out :y
Or slightly better.......get someone to crank it while you listen in the boot (take the carpet out first and take off the plate on the boot floor covering up the fuel pump) you will be able to hear the pump if its running :y
BTW how did you test for no spark? You didnt lie the plug on the cam cover and crank it did you?? Coz if you did the cam covers are plastic and wont give you an earth :-/[/quote]
OK Thanks, will test for fuel. I used a strobe light to test for a spark.
And yes I do realise the fuel issue is incidental because there is no spark.