Quote:
Originally Posted by 2forme
Is it required to aggressively shift the vehicle for this issue to occur? Reason I ask, is I've seen one start misfiring who's owner very rarely, if ever, aggressively shifts.
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Quote:
Originally Posted by Dave-ROR
Not really. .6 seconds isn't that aggressive of a shift. It's not a lazy shift but it's far from a power shift too. Can someone datalog the following? Run the car up near redline is 2nd, get off the gas, then floor it again, within .2-.6 seconds and see if this occurs then? I bet it does. I use that type of driving to set the car (or unsettle it) by moving weight around, etc...
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I guess I should not have said speed shifting, because you are correct .6s is not super fast. Also from what I read in the TSB from south africa, Toyota said that you had to be shifting at a specific rpm or higher (near redline) and landing in an rpm above like 5200 in the next gear. The way I read the TSB is that you need to have a both of these occur at the same time. Is that correct or is it either one independently? Also I do not know how to read the transient ignition retard table, but it looks like it is the same after 4000 rpm. So could it be happening anytime you are shifting above that?