This has happened from new... The strange thing is that if it's taken right up to the redline the change is smoothrossko wrote:Excessive pressure overshoot is indicative of gummed up vap, poor design, or inadequate rating. Some variation is inevitable, just as it is on-load, what's acceptable or not is a judgement call.
The lag is only there between about 5200 and 6400RPM.The petrol injection times spike down to virtually nothing to reduce the torque through the box and, obviously, the LPG times follow causing the overshoot.
I'm planning to have another trip to the supplier in the next week or so to try a dual vaporiser and, possibly, a timing processor