technologyhelp
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- Jun 9, 2015
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My engine smoke on acceleration.When diagnosed found out this is due to EGR valve.Can anyone guide where to buy the part for fiat croma 1.9 D 2006?
I'm not sure that EGR issues will create loads of soot in cars/engines fitted with DPF filters. EGR is just a bypass so yes raw soot is sucked out before would otherwise normally be shot down the exhaust pipe to the DPF but this soot is just re-ingested and then sent back down the pipe to the DPF. If the DPF is doing its job then final soot emission should be low.
In cars without a DPF I'm still not sure why EGR would cause excessive exhaust plumes. EGR is taken from the exhaust manifold. The exhaust manifold has the full 100% of soot and *hit the engines produces so recycling a small percentage should not make that much difference.
My only question I've yet to reason/research is how does EGR really affect fuelling levels. All diesel engines under heavy dynamic load produce a lot of *rap especially at lower rpm speed where fuel is just pumped in.
Any excess fuelling in a diesel engine produces loads of soot. Unlike a petrol engine diesel engines need lots of fuel to get up and go and thus when dynamically loaded we see the exhaust effects.
If the poster has a Croma fitted with a DPF and is seeing loads of smoke/fumes/soot/*rap out of the rear view mirror then this could indicate that his DPF filter is deteriorating or has blown through. (dropped its guts).
100% agree about the bullet hole or swirl mod egr gasket. Totally transformed my car and it runs better with it fitted than it ever did without one when it was new.
From memory it cost about £4 delivered off ebay - best £4 I've ever spent.
A restrictor plate creating (more) power...that's great...!!
A restrictor plate creating (more) power...that's great...!!