1998 Z28 Knock Sensor

**steve01** · 10-30-2006, 07:53 PM

I know the knock sensor harness exits the at the back of the intake manifold. Can anyone tell me exactly where the connector is once the harness exists the manfold. I want to clean the connector and do a resistance measurement on the sensors before a change anything. I'm geting a code 0327,low signal, and there is no timing retarding occuring. I have looked all over for the connector but I can't find it. A picture would be great.

**sleeper** · 10-31-2006, 11:21 AM

It is at the back of driverside valve cover, use a flash light and you will find it clipped on to bracket. Work it and you can get it up at back of Intake to unhook.

**steve01** · 10-31-2006, 03:51 PM

Thanks, I'll look again.

**steve01** · 11-01-2006, 03:42 PM

Finally found the connector. Disconnected and measured the resistance on both wires. According to my info, #1 is bad. We cleaned the connectors and put it back together. Reset the code but it came back and then the next day went away. I suspect something else in the connection. I tried to find the sensors at the parts store (even chevy) but they all show 2 different P/Ns (early design and later design). How can you tell which one you need without removing the intake manifold? I had them try to search by VIN but that didn't help.

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