Quote:
Originally Posted by mick taylor
I come across many old and even new diesel 4X4's that stink and blow smoke. that i shut off the fresh air, even sitting at the red lights, they stink !
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in many cases owner has simply cranked up the pressure on the old mechanical fuel pumps to try and get more performance. Unfortunately, without increasing airflow, all this does is chuck smoke out of the back as the car runs rich.