Omega Owners Forum
Omega Help Area => Omega General Help => Topic started by: Merlin on 16 June 2007, 12:21:40
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Hi guys (again). Sure youve all read my posts over the last week or so. The car is still in limp mode and I ve had some good suggestions from you. Going to investigate today (been working away), Just to recap, I have codes P1590. P1335 and P0725. Ive had a few good suggestions ie, crank sensor etc but one thing is puzzling me (well, two now). If a sensor packs in is it generally knackered completely? I ask this because the car will always drive the first mile or so (when cold) perfectly - then the eml kicks in and back to limp mode? Makes me think either temperature or emmissions build up. Temp reading is fine. BUT! - after having this for over a week, I left work at midnight last Thursday night when he had that bad rain and after a few hundred yards I hit a deep puddle that must have drowned the engine (diesel so not too bad). Now when I got to the usual place where the eml kicks in and limp mode starts, as usual, the eml came on, but 3 or 4 seconds later it went off and I managed to drive the next 7 miles unrestricted before limp mode came back - first time that happened in over a week!!!
So my question is - is there anything underneath the car (wiring?) that could be loose. I mean do you guys know of any weak spots the car may have? Im thinking wiring so any suggestions? Got me wondering if the puddle I went through just moved something!
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Sorry, I know nothing about the 2.2DTi engine.
If it helps, the v6 crank sensors seem to play up when warm - eg it will start, run for a bit, then die (v6 wont run if no crank sensor), and not start. Once cooled a little, will start and run for a bit longer and die again....
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Thanks The Boy. Seems interesting, is there any way to check if the crank sensor is knackered?
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check volt between batt terminals rev upto 3000 rpm at norm running temp
volts should be 13.5-14.5v if yes . to next step
ing off disconect ecu
conect a 55w bulb (headlamp bulb terminals 9 o'clock and 12 o'clock in parallel with multimeter to terminal 39 on wireside of harness and earth should be greater than 11v
next conect lamp and multi to terminal 1 to pos batt volts should be more than 11v same withterminal 2 both should be more than 11v
if all tests are ok then its ecu
if not get back to me
i hope it helps
my omega is the ecu itself, waiting for vauxhall to get back to me with a price, i think he said he had to wait for steven hawkins to work out price ;D
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This is one power plant I have not had exposure to....
Can I sudgest you get in touch with Jim Grayson on www.vauxhallmechanics.co.uk as his knowledge of these is much greater than mine.