1997 G30 Van, 6.5l Diesel, 115k miles. Video 1: Startup and sensitive accelerator pedal https://youtu.be/BxpnYoiOq8A Video 2: Shifting gears, black smoke https://youtu.be/cgFbwnZtxLw Symptoms: Rough/Fast idle when cold Accelerator pedal very, very sensitive
when cold, either idle or WOT with slightest pressure on pedal. Normalizes once engine
heats up and is ok at every restart throughout the day. On Highway, won’t upshift into OD unless I manually move shifter down to 3 then up to D. Then won’t stay in OD if
any gas is applied, immediately downshifts. Same symptoms with engine hot or cold Major black smoke under slightest load. (discontinued once I spiked diesel with Howe’s fuel cleaner) but symptoms above persist. Slow to engage reverse when shifted into reverse,
could be a separate but coincidental issue. What I’ve done: Spiked fuel with Howes fuel treatment. Changed Fuel and Air Filter Swapped PMDs ( has remotely mounted PMD with heat sink and two fans blowing on it.) Hasn’t burned out a PMD since I did this conversion
15k+ miles ago. Tested accelerator pedal resistance and voltage parameters, checked out OK Checked for bubbles with clear fuel return hose, saw none.