Pulse and Glide with the engine running?

[DRW]

Yes, Lean burn will complicate things.
My car has lean burn, although it works differently than the lean burn mode in a VX.

I noticed no benefit to P+G on flat ground, regardless if the engine was on or off during the glide. This is because holding a steady/light throttle lets the ecu use very lean A/F ratios. The 'pulse' portion of P+G uses heavier throttle and the ecu uses a richer A/F ratio at this time.

[1cheap1]

Originally Posted by DRW

Yes, Lean burn will complicate things.
My car has lean burn, although it works differently than the lean burn mode in a VX.

I noticed no benefit to P+G on flat ground, regardless if the engine was on or off during the glide. This is because holding a steady/light throttle lets the ecu use very lean A/F ratios. The 'pulse' portion of P+G uses heavier throttle and the ecu uses a richer A/F ratio at this time.

When i have no draft targets insight i just eoc from 62 to 52 mph or if lazy just use the cruise control at 57 mph. Using eoc yields slightly better results for my car but takes a lot of effort. If there are no cars even close i will slow to 45 mph and pulse to 55. The freeways here have a lot of humps for the overpasses so depending how i feel that day i use the above methods.