The last time I towed my caravan in May, after about an hour, the engine management light came on and the car went into limp mode with the resultant fault code being PO253 (injection pump metering control A low). I changed the fuel filters, air filter, and oil and oil filter and added a bottle of Redex. I've only been using the expensive diesel since then. The car has been running okay without the van in all journeys, with the longest being just over 2 hours. This week I hitched up the caravan and once again after about one hour, the light came on again and and the same code PO253 showed up. I deleted the code which removed the warning light, but it came back on within 10 minutes. I sat for 5 minutes or so, deleted the code once more, light went out and I drove home about fifty miles with the car running normally.
Something similar happened to my previous car, a Mondeo Estate which never had a problem until towing. I spent three hundred pounds on that without the garage finding the problem.
My Antara is 2012 model, 2.2 CDTI, 4x4.
Anyone any ideas?
Rgds, Ray

I've got the same problem on mine. Had it in the garage nothing sorted yet did you get yours solved

If you use the 'search' facility you might find the answer and a simple search on the Internet should be fruitful.

I finally got it resolved after a £100 diagnostic from Vauxhall and replaced all 4 injectors (2 had apparently gone and a third was abit iffy) local garage charged me £1200.

I also have this occurring. Not sure if you're still on here Gunner?

Did it fix the issue long term?

I think the towing is just a coincidence

It could well be coincidence. Only seems to happen when under load I.e. moving out to overtake or steep hill with the van on.
Just got back from taking the van away and it came on twice driving back in those scenarios.

Pulled over and wiped the code and all back to normal.

I'll take it to my local Monday and see if his reader can throw a bit more info on the subject.

Just my opinion but:
When towing the engine has to work significantly harder and as such consume a lot more fuel. Your error code referred to a pump and something being low. So is this referring to low pressure ?
If so then this could be some kind of fuel restriction.

This may not be relevant, the mk1 early Kia Sorento's has a fundamental problem with the lining of the fuel tank delaminating. This crated lots of contamination within the fuel tank which looked something like blades of grass. This contamination used to very gradually block the pickup pipe mesh. This would become noticeable during high engine loads like overtaking on a motorway, the effect was it would throw the engine warning light and cut the engine. Something that was really dangerous on a motorway and consequently had a lot of correspondence on forums etc. Mine had this problem so I cleaned the fuel pickup and removed the tank contamination, cheaper than a £1500 tank. This solved the problem

So I'm wondering if you have maybe a blocked filter or debris in the tank.
PS I'm not suggesting the Antara has the same delamination issue. Richy

Hi Richy.

I'll let you know what the mechanic says from the scan code.

You could well be correct. Could be a simple as a heavily contaminated fuel filter even.

Probably worth me ruling that out first.

What's odd is how intermittent the fault is. On the way back yesterday I'd had the engine under load several times... including going up a 20% incline and it was fine. I would have thought it would have come on at such times repeatedly if it were the injectors.

So a blockage to me would make sense.
Keep you posted

Finally managed to get out to the mechanic today.

His reader brought up 'fuel pressure regulator 1 control circuit low voltage'

I'm assuming this is the one on the rail?

Incidentally the fault light had turned itself off by the time I got there.