Omega Owners Forum
Chat Area => General Car Chat => Topic started by: fcc-pt on 07 October 2015, 23:13:54
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I had to replace HBV mostly due to overheating and lack of eat inside of the vehicle... which is wrong on cold days
Anyways, valve replaced all back in place (almost, forgot to connect the IACV Idle air control valve) great difficult to start forced a bit and it didn't started so give up and toke a closer look found out that the plug of the IACV was disconnected! Plugged it back in place and started the engine some misfire but ok...
The car is stalling every time i let the engine get back to normal RPM idle (+/-700 RMP) I guess the engine suddenly get beneath 500 RPM and goes to 1100+/- but, most of the times shutdowns unexpectedly. I have read ECU for errors and found out that the IACV was getting voltage beneath 12V (low voltage) had it replaced and same troubles has not changed a BIT!
Need some help out here please.
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Try unplugging maf sensor - if it cures you need new maf sensor. Had similar fault on old Elite and maf was faulty. HTH
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The strange thing is: Why just after removing the inlet manyfold? I believe is related with it... but thanks for the tip anyway the mass air flow would rase up an error and that would be logged in ECU
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Also double check that all of your vacumn pipework is in place,one little pipe off will play hell with the idle
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Need some schematics for that... any available in omega forum?
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Rechecked all vacuum hoses and everything is in the right place. Disconnected all the possible plugs (idle controller, MAF, etc) nothing the symptoms remain the same!
The engine gets RPM lower and lower and suddenly the engine injects petrol rising up the rpm avoiding this way shutdown, sometimes it fails... and gets shutdown.
Possible scenarios? Is this a MAF generic fail symptom? Wont this get logged in ECU? Going for a second code fault read...
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ECU reading states:
12 Diagnosis initiation/separator (indicates beginning/end of fault code list)
19 Incorrect RPM signal (Crankshaft sensor - incorrect signal)
21 Throttle position sensor - voltage high
37 Brake lamp switch
No more IACV error low voltage anyway...
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Have you reconnected the throttle pot?
Also, code 19 is bad news of impending crank shaft sensor
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Have you reconnected the throttle pot?
Also, code 19 is bad news of impending crank shaft sensor
Throttle pot = throttle cable?
If so that yes :)
The code 19 is there for years... perhaps that is the problem!
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I been reading http://oldsite.omegaowners.com//forum/YaBB.pl?num=1285583967
I never done any maintenance at the butterfly system or what so ever... but my mechanic probably did it I just wonder if the tolerance of the butterflies are ok?
As stated if wrong tolerance than it can lead to this kind os trouble! What do you think about all of this?
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Disconnected battery cable for 30" I guess I have done ECU reset...
New reading:
19 Incorrect RPM signal (Crankshaft sensor - incorrect signal)
21 Throttle position sensor - voltage high
73 Air flow sensor - voltage low
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Did you plug in all the loom plugs at the throttle housing and the trumpet?
If so disconnect, clean, refit and wiggle as required.
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I checked and rechecked everything back in place...
Maybe i have to do it all again?!?
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Try unplugging maf sensor - if it cures you need new maf sensor. Had similar fault on old Elite and maf was faulty. HTH
I've done this but car get's worse!
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Try unplugging maf sensor - if it cures you need new maf sensor. Had similar fault on old Elite and maf was faulty. HTH
I've done this but car get's worse!
Well it's not that then :y
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But according to ECU scan the 73 indicates a faulty Air Flow Meter
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Code 73 sometimes thrown as result of faulty crank sensor (code 19) - rectify the code 19 first. Fit replacement crank sensor - use genuine GM only. HTH
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Code 73 sometimes thrown as result of faulty crank sensor (code 19) - rectify the code 19 first. Fit replacement crank sensor - use genuine GM only that you have physically had to go to the genuine dealer to physically order/collect it fromHTH
Fixed for clarity...
Buying from ebay/amazon/Gumtree is done at your peril :y
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How can I identify the crankshaft sensor?
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Next to oil filter...
If you mean part number, then ring dealer with chassis/engine number.
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So perhaps I need to take it to a garage I can't lift it up by myself...
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Does the V6 has two crankshaft sensors?
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Does the V6 has two crankshaft sensors?
Just one... clearly documented in the Maintenance Guides ;)
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Ok, I recall that my crankshaft was replaced a few years ago...
At the time I toke the part number from the old one and got different plug with the same sensor!
Since than I always get the crankshaft error.
Question, where can i see the end plug?
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On the back of the 246 head, next to the dis pack and brakeservo (assuming lhd) :y
Have you read the guides yet...?
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On the back of the 246 head, next to the dis pack and brakeservo (assuming lhd) :y
Have you read the guides yet...?
Nope, got no time now, writing a tech article at linkedin :(
LHD
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On the back of the 246 head, next to the dis pack and brakeservo (assuming lhd) :y
Have you read the guides yet...?
Nope, got no time now, writing a tech article at linkedin :(
LHD
:-X
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I'm back I really sorry... so where can I get the guides? :)
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The sensor I have replaced year ago was Knock Sensor Cable 0261231116 and Crankshaft Sensor Is the basically the issue, so whats the difference between those two?
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Problem solved!
The problem was more extensible than expected I find myself with lots of serious problems ...
The first:
- loss of coolant
- hight temperatures
- lack of heat inside of the vehicle
- drop of rpm
- loss of power
And the list goes on...
So the first thing I did was coming here and expect you guys to help me which worked :)
First step, fixed coolant loss as I stated in another post changed the HBV but that was not enough a small hose was broken (the hose that connects the HBV to the engine), next a small pump beneath the expansion tank was replaced and after that still no heat inside of the vehicle but no coolant loss anymore. I suspected of lack of vacuum and had to fix the hose that connects the manyfold to the break servo pump, toke it off and fixed in shop that handles compressed air and hydraulics stuff... 6€ quite cheap awesome work! Everything worked like a charm... even heat!
But the problems keep going, so after repair the obvious car started to stall every now and then till the worst case scenario...
I've read about and come across with paperclip test!
After five minutes toke courage and did it seriously! My wife saying "Take the car to the Opel dealer and stop being so stubborn you won't be able to fix it, it ahead of you"!
Ten minutos later i found out the codes... a little research find out the possible problems!
Ho my God, so much broken sensors... I toke a serious challenge to repair by my self and i got it!
Bought the parts on Ebay, Amazon, German shops as Uk shops as well the parts arrived and I replaced them one by one!
But the car still stall till replaced the crankshaft sensor.
Now it is awesome!
All parts from Bosch apart from the hose and the heater bypass valve GM.
Water Circulation Electrical Pump -> 52€
Heater Bypass Valve -> 30€
Hose -> 25€
MAF Sensor -> 180€
Butterfly Sensor -> 54€
Crank Shaft Sensor -> 43€
Idle Air Control Valve -> 63€
Expansion Tank Cap -> 8€
Vacuum Hose -> 6€
Plus some other minor stuff!
I achieved success!
I'm happy for all the work I've done by my self!
Thank you so much to all of you...