Thread: Throttle tip-in issue/stumble (3.0 5-speed)
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Old 05-09-2025, 12:44 PM
Effduration Effduration is offline
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Would you please test fuel pressure after the Hengst installation? There was a bad batch of Hengst fuel pressure regulators (installed in filter) and I had one on my E39. It generated fuel pressure of 60psi causing the car to to run rich.
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'99 E39 528i 5-speed 130k
'06 325Cic auto 115k
'05 X5 3.0 auto 173k-SOLD
'03 530i - manual swapped - 430k miles-SOLD
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