Do bigger injectors need a tune?
In general, injectors need a tune. Otherwise, your ECU is trying to drive the new, bigger injectors using the duty cycle and dead times for the old, smaller injectors, which means too much gas potentially at the wrong time (i.e. – running rich and potentially missing).
Does upgrading injectors increase horsepower?
3. Larger throttle body and injectors. A larger high-performance throttle body will deliver more horsepower. Depending on what type of engine you have, you can gain as much as 10-20 more horsepower and comparable torque.
Can you put bigger injectors on a stock car?
You can;t do a stock tune unless you can fool the ecu into thinking it is getting more or less air. If you throw in bigger injectors it will hold that injector open for the same amount of time as the smaller injectors and it will dump TONS of fuel in.
Do you need INPA software to code fuel injectors?
You will need to have INPA software and a d-can cable to do the coding. http://www.bimmerboost.com/showthread.php?20330-DIY-N54-Injector-Coding-Via-INPA Click to expand… I have read BMW shop reports of “calibrating” injectors on the 535i after replacement.
When do fuel injectors need to be coded?
My theory (and I do not know this for sure..) is that normal injectors do not have to be coded for, however, high pressure/direct injection injectors do need to be coded for (or calibrated for really) You should also keep in mind that BMW changed the injectors at some point, and if you have the old ones you can’t just change one to a new one.
How do you unplug a D-4D injector harness?
Unplug all four injector electrical plugs and remove the loom bracket bolts (x2) 10mm Unplug connectors from the a/c clutch, MAF, etc. and fold the entire injector harness back and away from the work area. Sunday, September 18, 11
What to do if you have a diesel injector problem?
Start the engine and watch for the darkening/spotting of the brown paper with diesel spray, this will indicate quite clearly where the problem lies. Once identified the work can begin – Run the engine until nice and warm then turn it off and remove the keys.