Re: Help, VWDOC! 96 xj pings at idel RESOLVED
 

In message <4Ku0d.7374$sa7.6640@newssvr31.news.prodigy.com> , "dave AKA vwdoc1"
wrote:

>That is what I thought too bllsht!
>But I am always ready to learn new stuff! <g>
>
>I would think that the ign. timing would/could change due to CPS, CTS,
>vacuum and the TPS.

That's right, the computer will use those inputs to alter ignition timing for
the current conditions.

>
>I would be interested in finding out how to electronic set the fuel injector
>timing to get the best power and mileage though!!!!

Not being an engineer, I'd be interested in seeing how they come up with this
stuff, but I don't think it would be worth trying to re-invent the wheel. You
can bet the manufacturers do as much as they can to get the best combustion they
can already.

>
>later,
>dave AKA vwdoc1
>
>"bllsht" <nospam@invaliddot.net> wrote in message
>news:k2k2k09pflts8v3t9mmb0n0rt4l8c9mk37@4ax.com.. .
>> In message <iV70d.10896$OZ6.7595@okepread06>, "DougW" wrote:
>>
>>>dave AKA vwdoc1 did pass the time by typing:
>>>> would the timing light help? What would it do?
>>>
>>>Even though the base timing isn't adjustable you
>>>can still look at the timing mark and see where it
>>>lined up. In this case it would have been too far
>>>advanced. (about 9 degrees)
>>
>> You can't change ignition timing at the distributor. Only where the rotor
>> is
>> pointing when the coil fires, which could cause cross-fire. When the coil
>> fires
>> is determined by crank position, which is learned from the crank sensor.
>>
>> This would mess with injection timing though, which is a whole different
>> bag of
>> worms.
>>
>