Autel is a leading developer, manufacturer, and distributor of advanced automotive Diagnostic, TPMS, ADAS, and IMMO tools, equipment, and accessories. Corporate Partner

BMW N54 Piezo Injector Voltage vs Current Waveforms

Scott Manager California Posted Edited

2008 BMW 335i 3.0L (N54B30A) 6-spd (S6-53BZ)

P0171 — System Too Lean Bank 1

P0174 — System Too Lean Bank 2

Piezo

Injector Waveform

Current

Here are two injector waveforms:

New Pico Injector Waveform

New Injector Image

Old Injector Bad

Old Injector Image

There is an article I posted in 2018 here that might be useful.

+1

Autel is a leading developer, manufacturer, and distributor of advanced automotive Diagnostic, TPMS, ADAS, and IMMO tools, equipment, and accessories. Corporate Partner