Bad injector O rings if your lucky, bad injector slobbering fuel if your not. Can be a cracked head, very rare. If the exhaust is blowing white you probably have a bad injector or 2.
From the factory, 525.
From the factory, it was available in ratings from 350 to 525 horsepower.
I'm assuming you mean "525" as a horsepower rating, and not as a model number, and you're probably referring to the 525 horsepower rated N14. All the Cummins I6 engines use 1-5-3-6-2-4 as their firing order.
525 from the factory. They can be tuned to well over 700.
The Cummins N14 engines could be had in horsepower ratings from 310 to 525 horsepower. The red top engines were those rated at 435 horsepower or higher.
The 1994 BMW 525 fuel relay can be located under the hood of the car. Once the hood is lifted, a black box on the passenger side fender can be opened to reveal the fuel relay.
525
Boost pressure at full throttle under load should be about 37lbs.
Located under the floor front left hand side.
Unleaded pump gas. I run 91 octane in my 525 KTM.
Some are. I know one of our contractors who has a Kenworth T-800 dump truck with a 525 Cummins, and that truck will move, I tell you. But a normal fleet truck isn't going to be particularly fast.
Do you mean 525 IA, 540 IA etc? It stands for fuel (I)njected (A)utomatic transmission