Limp mode,

Hey guys/girls

Im new to this forum, and have been looking threw it most the day,
I have a 2007 Holden Astra SRI 2.2 with 205k on the clock.
It went into the local mechanics the other day, as it went into limp mode, with it stuffing up a coil pack,
I had the coil pack changed out for a new one, along with new spark plugs,

The car is still going into limp mode on start up,
I was told its throwing code
U2103
P0460
and that the mechanic I gave the car to does not have access in his scan tool to look into them further.
I am unsure of what causes both codes, and unsure of how to fix it,

I am aware P0460 is in regards to fuel sensor,

Any help greatly appreciated,

Was the coilpack genuine or aftermarket?

Aftermarket coilpacks are crap and are known to prematurely fail. Start with a genuine unit and see if that fixes anything

U2103 is no canbus signal.
That will be throwing it into limp mode.
Where are you located?


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I have a genuine coil pack put on, (car has done less then 25km from mech).
I am located South west Sydney just out of Campbelltown,

What is Canbus signal?

Sorry I can't help out. I'm in Melbourne. Canbus signal means there is a sensor not receiving or sending a voltage reading

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So would that be the fuel sensor then?

Can't say without seeing data

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