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#Dpf off tuning professional
On the other hand if you're a professional tuning workshop then I'd strongly advise you consider this sort of purchase as it will set you apart from other tuners producing smokey tunes that block up DPFs and waste customers' money. While this is the ideal scenario, we also know that not too many enthusiasts are going to go through this expense just to tune their own vehicle. There's a couple of problems with this technique though and the biggest issue is really the cost of the equipment you'll need.Īn entry level opacity meter is likely to cost in the region of $1000 - $3000 USD and they quickly go up from there.įitting the meter to the exhaust system is no small task and this needs to be done of course pre DPF to get useful data.
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This is a tricky situation because the best way to deal with this is to use an opacity meter or smoke meter as it's more commonly called to check the soot output prior to the DPF. We can end up with a DPF needing to go through regen cycles more frequently or we may even get to the point where the regen cycle is ineffective and the DPF simply becomes blocked which can be expensive if it needs to be replaced. If we create a tune that's producing excessive exhaust soot then the DPF may have a hard time dealing with this. This is obviously fine in a stock calibration however as we add more fuel to improve engine performance, it's very easy to end up generating additional soot in the DPF and that needs to be dealt with. The issue is that by its very nature, when the DPF is doing its job, we should have no visible exhaust smoke coming from the tailpipe. One of the issues that you need to concern yourself with on newer trucks, those fitted with DPFs, is that that DPF is there for the purpose of collecting and filtering out soot from the exhaust gases.Īs the DPF does its job, it will over time fill up with soot and then we'll need to go through a regen cycle to burn off the soot so that it's cleaned and ready to collect more.