AVF 1.9PD engine revs dropping / increasing around 1700rpm
Posted: Wed Jan 24, 2018 4:01 pm
Would really appreciate some input with my old Superb (basically a PassatB5.5)
See video here:
https://youtu.be/x6R4rOJ-_3w?t=144
(phone on a mount on side window, sorry for vibrations)
1.9PD 130 AVF tiptronic with 226K miles on it.
Around 1700rpm the car seems unable to maintain steady revs, dipping / surging by around 250 rpm on a quite regular cycle.
It was in cruise control with the gearbox in manual mode, 5th gear. 4th also does it, and I think 3rd. Checked cruise mode to be sure there is no issue with the pedal.
Disconnect MAF doesn't make a difference (other than car no longer pulls properly)
No fault codes in VCDS
VCDS timing appears ok (-0.6-0 degrees).
Ideas anyone, or further investigations that make sense with VCDS?
Thanks!
See video here:
https://youtu.be/x6R4rOJ-_3w?t=144
(phone on a mount on side window, sorry for vibrations)
1.9PD 130 AVF tiptronic with 226K miles on it.
Around 1700rpm the car seems unable to maintain steady revs, dipping / surging by around 250 rpm on a quite regular cycle.
It was in cruise control with the gearbox in manual mode, 5th gear. 4th also does it, and I think 3rd. Checked cruise mode to be sure there is no issue with the pedal.
Disconnect MAF doesn't make a difference (other than car no longer pulls properly)
No fault codes in VCDS
VCDS timing appears ok (-0.6-0 degrees).
Ideas anyone, or further investigations that make sense with VCDS?
Thanks!