Knock sensor error code diagnosis?
 

Can someone give me a test procedure for the 89 TII knock sensor? My ECU's throwing the code (05), but the 88 FSM isn't very helpful :D Also, is that the control unit or sensor?

What voltages/resistances should I be looking for and where? Also, the ECU should completely retard the timing when it doesn't get a signal (or gets one out of spec), right? So I'm not going to toast my motor, eh? :)

TIA,
Brandon

Did you read the part in the 88 manual where you jumper the initial set jumper and then get a plastic hammer and lightly strike the front motor hoist point?????? The timing is supposed to retard when you do that. I have not idea why I have not done that myself, but have not. The only other thing I saw was 4-5 volts on pin R at idle. Go do it and tell us what happened. It wasn't very detailed in the sense it did not tell you to put a timing lite on it while you do that, or what rpm the engine should be at. Gonna have to try that tomorrow. We shall not BUMP YOU....TO THE TOP!