EGR and DPF Delete

Makaveli69 · 07-12-2019, 07:05 AM

I deleted my EGR completely a couple months ago and fuel economy got better but now its using more fuel, when i look at the DPF soot level in Carly its at 15-16g's and regen request changes between 4 and 6, EGT's are 400-450c, so it looks like its trying to regen but cant get the temp high enough which makes me wonder if they use the EGR to get the EGTs up to 600-650c.

Also has anyone used a superchips bluefin or tuning box to delete the DPF?

Spyro235 · 07-12-2019, 09:54 AM

If you have carly, check your coolant temps. Is it hitting 190*f or 88*c? If it's anything lower than 85 while running for a while, in normal driving, then your thermostat is bad. Causes the engine to run rich and think it's still cold. MAin reason mpg ever goes down, and the MPG drop is the primary way to find the shot thermostat.

Makaveli69 · 07-12-2019, 06:22 PM

yeah it was only at 68-70c but i changed the thermostat and now sits around 88-91c

07-12-2019, 07:05 AM	#1
Makaveli69 Enlisted Member 5 Rep 31 Posts Drives: BMW X5 Join Date: Feb 2019 Location: Australia iTrader: (0)	EGR and DPF Delete I deleted my EGR completely a couple months ago and fuel economy got better but now its using more fuel, when i look at the DPF soot level in Carly its at 15-16g's and regen request changes between 4 and 6, EGT's are 400-450c, so it looks like its trying to regen but cant get the temp high enough which makes me wonder if they use the EGR to get the EGTs up to 600-650c. Also has anyone used a superchips bluefin or tuning box to delete the DPF?
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07-12-2019, 09:54 AM	#2
Spyro235 Captain 260 Rep 714 Posts Drives: '10 X5D, '04 330i ZHP Join Date: Jan 2017 Location: CO iTrader: (0)	If you have carly, check your coolant temps. Is it hitting 190f or 88c? If it's anything lower than 85 while running for a while, in normal driving, then your thermostat is bad. Causes the engine to run rich and think it's still cold. MAin reason mpg ever goes down, and the MPG drop is the primary way to find the shot thermostat. __________________ Daily/ Tow: 2010 X5 35D - 326k, Deleted w/DUDMD Stage 2, Sutphin Trans tune, Comfort seat retrofit Fun car: 2004 ZHP 6mt - 256k miles, z4m FCAB, stock. Drift car: 2001 330i for sale
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07-12-2019, 06:22 PM	#3
Makaveli69 Enlisted Member 5 Rep 31 Posts Drives: BMW X5 Join Date: Feb 2019 Location: Australia iTrader: (0)	yeah it was only at 68-70c but i changed the thermostat and now sits around 88-91c
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