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Pinging 200 1991

posted by  Art Benstein on  Mon Jul 22 08:33 CST 2013
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last visit: Fri Oct 17 20:10 CST 2014
[RELATED]

If pinging is the symptom, perhaps you should be swapping the ignition controller. That's logic, although experience says those things never go bad.
If the fuel system (mixture) was the cause of pinging so repeatable the ICU cannot compensate, codes and a check engine light would certainly result. In other words, if you split the AMM hose or had a faulty fuel pressure regulator on your 91, the OBD in the fuel side would alert you to that long before pinging would result.


--
Art Benstein near Baltimore

Since it's the early worm that gets eaten by the bird, sleep late.






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