On Sunday, July 26, 2020 at 5:04:15 PM UTC-4, trader_4 wrote:
On Sunday, July 26, 2020 at 4:11:04 PM UTC-4, SNAG wrote:
You've been a great help in the past helping me diagnose car problems
... I'm trying to help my son figure out a dead cylinder on his 2003
town & country van . He's getting a code that says #6 injector is not
functioning . We've tried swapping that injector to a different cylinder
, the code does not follow the injector . We have replaced the injector
wiring harness because it was melted and shorting out , it has been
suggested that the short may have caused damage to the computer -
specifically the #6 injector driver . I know exactly zip about these
newer cars with the all computerized engine controls and hope you can
shed some light on this problem . If I can't get this thing running
right I may have to let him take my truck again ... and I'm not sure it
can survive another round of his abuse .
Another question , can this problem cause other damage ? I don't
think it can since it's just not getting gas to that cylinder but ...
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https://www.2carpros.com/articles/ho...-fuel-injector

Should have added, I'd do the tests they suggest at both ends of the cable
that was replaced and to what it plugs into. This is a new cable as opposed
to a repair to the old one? Work back from the injector to the
electronics. A wiring diagram from Bentley or similar or online helps.
I suppose it's possible the shorted wire killed the driver, but typically
electronic drivers are current limited so a short won't fry them.
Someone trying to jumper things during testing, connecting direct 12V
somewhere it shouldn't be, that will blow things.

I don't see a cylinder not getting fuel doing any damage either.