Engine light defeated - Alfa Romeo Forum
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Engine light defeated

Ever since I bought my 156 2.0TS Sportwagon in September 2011, it would light up the engine warning light after a 70 mile+ motorway run. When I tookit to my local dealer he charged me 30 to clear it and told me not to worry..... So the next time it happened I bought the lead and used Fiatscan to clear it- IIRC the code was 2077 and 2078 which basically said it was running a bit weak. So I put up with it, sometimes it would clear itself after a couple of days, sometimes I'd have to get the laptop out.
A couple of weeks ago I stuck a bottle of Comma oil's injector cleaner into the tank. It cleared up a slight 'whuddering' noise I was getting at around 2500 - 3500 rpm. I've done four 100 mile ish motorway runs since putting the cleaner in and the light has remained off. So hopefully my weak mixture was caused by a partially blocked injector(s) and the Comma product appears to have cleared it. Usual caveats apply, no relationship with Comma etc.
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Having read all the horror stories regarding JTS injector problems I've been pretty religious about using injector cleaner every three tanks of fuel, avoiding running too low, not using supermarket fuel and changing the fuel filter with every scheduled service. So far no signs of trouble at 75,000 miles.

My wife's Renault diesel gets the same treatment but still runs like a bag of poo and has numerous issues with the injectors and oil breathers...
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