Omega Owners Forum
Omega Help Area => Omega General Help => Topic started by: bigdods on 13 November 2009, 21:58:07
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Well its been noisy for a while but now the SAI has failed. So instead of grinding for 30 secs it now is mostly silent but the dash lights go dim then bright every second for the 30 seconds when its supposed to run. Amazed that no fuse has blown !
Now as I understand it I need to remove the n/s front wheel, remove the wheelarch liner and then behind it I should find the SAI which I then simply unplug, is that right ? Is it obvious once the liner is removed ?
Cheers
Dodsy
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Can do without removing liner - you can feel for the connector :)
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Or take it to Oak Road, and send a Tunnie in to the narrow bits ;)
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aha well if its a size thing I have the answer right here. I'll send my 9 year old in to do the job....
Glad I dont have to remove the liner, I'll stick an arm up there on sunday and see what I can find
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Or just pull the 50A fuse that supplies it with power.
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Or just pull the 50A fuse that supplies it with power.
now this seems a much more sensible idea, 50A holy crap no wonder my lights are dimming when it tries to run !
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Having looked in the user guide the 50A fuse dfor the SAI isnt shown, so I guess its one of the fuses under the bonnet that are shown as 'dealer only' items in my handbook ;D
I havent had a chance to get under there yet, will it be obvious which fuse I need to pull - is there just the one 50A fuse ?
Cheers
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The fuse is in the under the bonnet fuse box next to the battery. It's big and orange and I think it's the only one like it in that fuse box.
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Do these piccies help at all ?
http://www.omegaowners.com/forum/YaBB.pl?num=1176542235
3.0 litre is the second one but I don't see the SAI listed ??
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The SAI pump surly cant be 50A can it? :-? :-? :-? :o :o
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i bet it is full of water in the motor fan, could mean that the valve is letting exhaust gas in and is going the wrong way. main fault is water. pull pipe off if it comes out then valve is gone.
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The SAI pump surly cant be 50A can it? :-? :-? :-? :o :o
Why not? At 14V that's only 700W; your toaster is more powerful. ;D
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The SAI pump surly cant be 50A can it? :-? :-? :-? :o :o
Why not? At 14V that's only 700W; your toaster is more powerful. ;D
It just sounds like a lot ;D ;D ;D
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50A fuse removed... silence is golden ! Cheers for the advice :y
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50A fuse removed... silence is golden ! Cheers for the advice :y
A photo of which one would make a great guide ;)
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50A fuse removed... silence is golden ! Cheers for the advice :y
A photo of which one would make a great guide ;)
IIRC, there is only one 50A fuse (in the fusebox next to the battery).
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The SAI pump surly cant be 50A can it? :-? :-? :-? :o :o
No it isn't, but the initial start up current is pretty damn close.
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To avoid over stressing cables and fuses you should try and select a fuse & cable rated at twice the current you expect.
A 50A fuse is intended to blow at 50A. If you run at the limit things start to get warm and the voltage drop can cause problems.
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50A fuse removed... silence is golden ! Cheers for the advice :y
A photo of which one would make a great guide ;)
IIRC, there is only one 50A fuse (in the fusebox next to the battery).
Correct, there was only one 50A fuse. I will take a piccy of the fusebox at the weekend and post up for use as a reference - is this something worth adding to the Technical guides ?
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To avoid over stressing cables and fuses you should try and select a fuse & cable rated at twice the current you expect.
A 50A fuse is intended to blow at 50A. If you run at the limit things start to get warm and the voltage drop can cause problems.
;D ;D
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To avoid over stressing cables and fuses you should try and select a fuse & cable rated at twice the current you expect.
A 50A fuse is intended to blow at 50A. If you run at the limit things start to get warm and the voltage drop can cause problems.
Nah....I2t mate!
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Best explanation I can find is here:
http://www.circuitprotection.ca/fuseology.html
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Best explanation I can find is here:
http://www.circuitprotection.ca/fuseology.html
:y
The SAI pump surly cant be 50A can it? Huh Huh Huh Shocked Shocked
The point I was going to make (but failed ::)) was that a 50A fuse is probably protecting a circuit that normally draws around 25A.
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Best explanation I can find is here:
http://www.circuitprotection.ca/fuseology.html
:y
The SAI pump surly cant be 50A can it? Huh Huh Huh Shocked Shocked
The point I was going to make (but failed ::)) was that a 50A fuse is probably protecting a circuit that normally draws around 25A.
Again, it depends on the fuse type.
The circuit (with the correct fuse type) could be 40A with an in-rush current of 150A for a short period.
Also remember, a fuse does not protect the circuit, it protects the supply (as if it blows, there is already a fault in the circuit)