Dear all
Wondering if anyone has any good advice they could give me? I have used the search function but no circumstances seem the same as mine.
I have a 1999 100sx 1.6 petrol Brava auto. With complete irregularity the injector light will come on and the car will misfire. Generally it is part of the way into a journey when the car is warm.If I sit with the engine off and wait from 15mins to an hour the car rights itself & is fine. I had a diagnostic by Fiat a year ago and they said the ECU said coil failure, but tested it & there was nothing wrong it.Trouble is getting the car to the garage with the light still on,which they say is what they need to completely diagnose the problem.You can't make this happen.It will be fine for months on end and then it will happen 3 times in a week.I've sat in red hot traffic for an hour & it hasn't happened but then been only 5 mins away from home and it fails.
Yesterday I had a failure with my wife & baby in the car & so had to call RAC. Luckily he arrived while the light was on.He said it was the coil.Does this sound right to you guys? Would a coil right itself after a short time and would it be so very intermittent? I am mechanically incompetent so will get a garage to repair this for me but with so many of you good folk having received so many different diagnosis and fitted so many parts only to still have injector light problems I thought I should ask.I have a young family & little cash so can't afford a long series of bills while the garage 'tries' to eliminate the problems.. Your opinion would be so very much appreciated.

I was told (by a Fiat Dealer, one of the more reputable ones!), that they cars ECU memory will "hold" any fault codes until the car has been stop/started 3 times.

If this is the case, it's getting the fault to occur when you can get it to the dealers within 3 clicks of the ignition.

It's conceivable it coudl be a coil, but it could aslo be any one of a hundred others either.

If the diag says coil fault then change the coil.

They get hot in use and the heat can cause them to fail. When it cools down it goes back to working perfectly.

My sisters Uno did this but only after 20 mins of constant speed on the motorway. You could drive it for hours around town and it would be fine. Get on the motorway and you could predict to within a mile when it would fail.

Thanks very much guys for your support.
It's booked in with Fiat today for a new coil.
I'll let you know how I get on.
m