This is on the '93
After the car is all warmed up to operating temp, If I slow down to turn or slow down at all to the point that my car will drop to 2nd gear during 1/2 to 3/4 throttle, I can hear the supercharger whine get louder then a few seconds later it will quiet down. Also, looking at the boost guage, it looks like it is dumping about 2 to 3 psi.
It only seems to do this when it is dropped down into second gear. I don't ever hear it at all when in overdrive, even if I stomp the go pedal the boost will stay around 8 or 9 psi.
So, from what I understand, if the pcm hears knock, it will pull timing and dump boost?
I don't have access to a scan tool to get any solid numbers, just my awesome description
If that is what is going on here, what are some of the most common causes of KR on the * I?
Just mainly looking for some other things to check out when I get some time.
I already know about cracked manifolds, I have not checked them out yet...
I run 94 octane
fuel filter is less then 1 year old with only about 6 months of driving on it
NGK TR 55 copper plugs and AutoZone premium wires less then 2 months old
If anyone has any ideas, please let me know.