VEMS Community Forum

VEMS => Calibration & Mapping => Topic started by: MGV8 on May 19, 2015, 07:06:53 PM

Title: Problems under load & acceleration
Post by: MGV8 on May 19, 2015, 07:06:53 PM
Hi
Having huge problems with my MGB V8, engine stall under acceleration not only hard acceleration but also just light take off. Set up: Rover 4.0 V8 Vems 3.2 board running 1.2.11 firmware. Wasted spark, one lambda and one EGT. Car has been running well with this set up for the last year :) Looking at log files lambda goes suddenly very lean, always happens during acceleration mostly in low gears. A pull in 4th gear from low 1000 rpm to 4000 with full throttle seems to be OK. My first thoughts was fuel problems, change both fuel filters and new pump - made no difference. Change fuel pressure regulator - no difference. Tried to run with fuel pressure regulator without vacuum connection and change settings in VE table to get correct lambda - no difference.
Any good aidears what coud be my problem?


Would like to share log files, but how do I do that?

BR Søren