Toyota Avensis 2.2 TD - Avensis Diesel Rough Running Problem

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Sat 19 Jan 2013 23:46
Toyota Avensis 2.2 TD - Avensis Diesel Rough Running Problem - Grey1

I’ve got a 2006 2.2 TD Avensis. On Wednesday I filled up with diesel from Tesco in Amersham. A few miles later it started to miss under load. It felt just like fuel starvation or, thinking back to the days on manual chokes, leaving the choke pulled out when the engine was hot. The following day it was OK but the symptoms returned on Friday on a longer run. Coincidence?

It stopped completely today and the AA man found a fault code indicating “open circuit on injector”. He cleared the code and it seemed to be running OK. He suggested putting some injector cleaner in the tank. I did that and every thing seemed to be OK for 10 miles or so and then it started missing under load again.

The car has done 68,000 miles and hasn’t missed a beat until now.

Any ideas anyone?

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Sun 20 Jan 2013 16:45
Toyota Avensis 2.2 TD - Avensis Diesel Rough Running Problem - Peter.N.

On an older diesel I would have said that the fuel filter was blocked but modern ones are a lot more complicated. The problem could well be caused by an faulty injector, I wonder if the 'open circuit' referred to was in the injector itself or the wiring to it.

I would see if you can find a dedicated Toyota site for info, failing that take it to a reputable diesel specialist, they are far more likely to know the fault and are usually cheaper than a garage.

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