Will replacing knock sensors do any good?
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Joined: Feb 2004
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Originally Posted by 98Z28ID
how dose knock sound how would i know if im getting knock i have a 98 also this morning when i was going to the bank to deposit my check for more mods when i hit the gas and went above 3,000 rpms my engine sounded really loud kinda like if i used nitrous it was also really cold outside.
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Joined: Feb 2004
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Originally Posted by tici
"On the Knock Sensor Global Gain vs. MAP vs. Cyl, the table goes from all 4s to all 1s right at 65 kpa, I changed those 1s to 4s"
Is this in Edit Knock Retard / Attack vs RPM? Looks like...
So basically you are telling the PCM to wait 4 seconds before bothering about KR?
Talking about 98's: I had a lot (6-7) of KR at 1400-1600 rpm and 0.4-0.5 G/cyl (85-90 kpa MAP). The only solution was to reduce timing 8-10 degrees in that spot. The PCM did only removed 4-5 degrees but this was enough to get raid of KR (in thaht particular spot). Do you have (had) the same problem?
Is this in Edit Knock Retard / Attack vs RPM? Looks like...
So basically you are telling the PCM to wait 4 seconds before bothering about KR?
Talking about 98's: I had a lot (6-7) of KR at 1400-1600 rpm and 0.4-0.5 G/cyl (85-90 kpa MAP). The only solution was to reduce timing 8-10 degrees in that spot. The PCM did only removed 4-5 degrees but this was enough to get raid of KR (in thaht particular spot). Do you have (had) the same problem?
It sounds like if you have a M6 and try to accelerate at low RPM in 6th gear: not really pinging but like all internals are shaking.
Reducing the timing did eliminate KR, but the engine still sounds the same at that particular RPM vs MAP (or G/cyl) spot.
I don't know if the LT headers are adding some new noise or what, I just know that if I disable TCC there is no KR at all. No matter which timing I set. With no TCC it's not possible to have low RPM and high MAP, so I'm just avoiding the KR zone. But to disable the TCC can't be the solution
Do you have a M6 or an A4?
Reducing the timing did eliminate KR, but the engine still sounds the same at that particular RPM vs MAP (or G/cyl) spot.
I don't know if the LT headers are adding some new noise or what, I just know that if I disable TCC there is no KR at all. No matter which timing I set. With no TCC it's not possible to have low RPM and high MAP, so I'm just avoiding the KR zone. But to disable the TCC can't be the solution
Do you have a M6 or an A4?
