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martha_schaefer1

Trafic diesel injection fault

Alright mechanics! My 2009 Renault Trafic, diesel engine, is giving me a headache. Got 138947 km on the clock. The injection system seems faulty. Fuel consumption's gone up, power's way down, stalls at idle sometimes, and puffs out smoke when I accelerate. I suspect it's something simple, maybe a bad connection somewhere. Anyone seen anything similar?

4 comment(s)

fabianwinkler16

Hey, I had something similar on my Trafic (not sure of the year right now). Those symptoms sound familiar. Check the cable and plug connections of the injection components. It could be a loose or corroded connector. That was my issue, anyway. Is the air filter clean?

martha_schaefer1 (Author)

Cheers for the quick reply! Where exactly should I be looking for these connections? Any specific areas that are known to be problematic, or a specific order I should check things in? And yeah, the air filter is brand new, changed it last service.

fabianwinkler16

Honestly, it’s a bit of a faff to pinpoint. Just visually inspect all the connectors you can find around the injection system. Give them a wiggle and see if anything changes. But realistically, with those symptoms, a workshop diagnosis is probably worth the money. Could save you hours. I ended up doing that, and they found it quick.

martha_schaefer1 (Author)

Took your advice and went to a workshop. You were spot on! It was a dodgy plug connection on one of the injectors. They cleaned it up and re-seated it. Cost me 95€, but it's running like a dream again! Power's back, no smoke, and idles fine. Thanks for pointing me in the right direction!

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