Pinging NG?

[Huw Powell]

> The car is a 1987 Coupe GT Special Build (2.3 NG engine).

> The car idles perfectly with no signs of vacuum leaks (not to say that there aren't any, just that it idles fine). The distributor still has the factory locking tab on it that locks it at 12*, so it doesn't look like the PO messed with the timing. I have considered changing the cap, rotor and wires

OK, when it pings, do you ever get a flashing engine light?

If the computer goes into full-retard, it is supposed to light it.

If the engine knocks, it is supposed to retard it, and fast - so you
don't even here the tiny hints of detonation that it picks up on and
acts on.

I think your knock sensor system is not working properly.

Yes, replace the cap and rotor, or at least take a good look at them.

Check the torque on the KS, it's supposed to be pretty light, I think,
and make sure it is mounted cleanly.  Make sure it is connected properly
to the wiring, as well.

Try unplugging it - any difference?

Just a few random thoughts... I hope some might help.

--
Huw Powell

http://www.humanspeakers.com/

http://www.humanthoughts.org/