My 2.0dci115 trafic (2007) with approx 72000 has been great up until it came back from my local garage after PSV test. had lend of my dads van for a few days until i got road tax sorted on my Trafic. basically it sat at his house for 5/6 days. I put some diesel in it (all through a proper filtered funnel) and decided to drive it the 4Mile journey home.3 miles later i felt what was like a flat spot under acceleration) so i kept a watch for it but it is happenening regularly whether you`re cruising alongt at 50/60mph or 30 or 40mph. It has got more regular and STOP light has come on but that is normally when i try to force accceleration. ease off or drive very carefully and it just misses. Engine management light on & the heater /water in filter light on. Van had new filters all fitted whilst in for PSV test. Sealey Diagnostic machin giving me Df050 and DF 056. DF056 is an air flow problem apparently. Air flow meter taken out and cleaned but no difference.how would i know if it`s goosed without exchanging it? Any ideas on my dillema folks?

AidyMc, December 2011

Tried another MAF today. Miss isn`t as bad and it put all the dash warning lights out except exhaust gas light out. So new MAF ordered and EGR clean out/replacement is next on the agenda. Going like crap again with my MAF.

AidyMc1, January 2012

No wires affected just under the Airbox. Would the problem lie under the plastic covers? Theres like a flat or oval plastic pipe which looks to be coming from the intercooler over the top of the engine. I cant see any easy way of removing it. Am i right to say it is fixed somewhere or does it pop up ? looks like it has to come off to remove the plastic covering top of engine.

AidyMc, January 2012

thanks for that 1/4drive, the housing does seem to have a fair bit movement in it. The codes i found on what seemed to be a renault document in"PDF" type on the internet. Hoping that fixes the problem as i don`t want the expense or hassle of replacing injectors. Although my Mechanic does seem to think my van would be hard to start if it was a faulty injector. I`ll try that thisevening and with a bit of luck it sorts it.

Aidy, January 2012

Don't know where you got those code definitions but df05?? codes refer to injector short circuits,not afm faults.
take of the ir filter housing/casing and check very carefully for wire through the insulation on the injector feed wires.
the air filter box presses down and causes the wires to rub away.
there's usually also a corresponding shiny bit of the engine where it's been rubbing.
re-insulate and mount the air box up on a couple of washers so it doesn't happen again

1/4drive, December 2011