Pinging NG?

[Huw Powell]

duandcc_forums at cox.net wrote:
>
> One more piece of information that may help: I see no signs that the ignition system is trying to dial back the timing when it pings. No loss of power, and the CEL never blinks to indicate that the timing has been retarded to max. Shouldn't it be blinking if I am hearing pinging?
>
> Dave
> 1987 Coupe GT Special Build

see my previous reply... something is wrong, as the ecu should be
retarding the timing before you ever notice or hear pinging.

the CEL only comes on at full retard, as far as Marc and I could tell
when we were hoping it worked as a "knock sensor light".

--
Huw Powell

http://www.humanspeakers.com/

http://www.humanthoughts.org/