clayton006 Posted July 1, 2007 Report Share Posted July 1, 2007 Hello all, Well I just purchased another bird again so I'm back in the picture. I have a question though. My car is kinda running rough almost like a motor mount is snapped or something (not jumping or missing, but just feels like it's shaking a bit. It's got plenty of power.) and this car has a code in it. It is the knock sensor low input code. So I'm asuming that the knock sensor could be bad. Could this cause my engine to run a bit rough. I'm asuming it could. Second, where is that thing located and how hard is it to change? I'll probably end up doing it today if it's not that hard. Is there more than one on it? Thanks for your help!! Quote Link to comment Share on other sites More sharing options...
MrMeanGreen Posted July 1, 2007 Report Share Posted July 1, 2007 Yes, it could. If it's a false knock to the point of running rough, that's because the PCM is pulling too much timing thinking the car is detonating. There's a pair of them in the valley cover under the intake manifold. You need to figure out which one is the one throwing the code (front or rear). http://www.ls1howto.com/index.php?article=5 There's directions with pics on how to remove and reinstall your intake. Quote Link to comment Share on other sites More sharing options...
AJ Posted July 1, 2007 Report Share Posted July 1, 2007 or just replace them both since you will already be in there. Quote Link to comment Share on other sites More sharing options...
98fiveseven1647545503 Posted July 1, 2007 Report Share Posted July 1, 2007 ALSO: Be very CAREFUL when removing the harness off of the sensor(s) it self. The plastic has become very very brittle of the years on these car and it is nothing for it to break. GM p/n:15320925 which is also the AC Delco p/n as well. Go ahead ask me how I know Make sure you or a friend has a IN LB torque wrench to properly torque down the intake and I believe that right up tells you you can re-use the gaskets on the intake. :woowoo: Quote Link to comment Share on other sites More sharing options...
clayton006 Posted July 1, 2007 Author Report Share Posted July 1, 2007 Sounds like I may just wait to get an LS6 intake manifold since I don't drive this car much, boy this job sounds like a pain. Thanks for the quick responses. Quote Link to comment Share on other sites More sharing options...
98fiveseven1647545503 Posted July 1, 2007 Report Share Posted July 1, 2007 Sounds like I may just wait to get an LS6 intake manifold since I don't drive this car much, boy this job sounds like a pain. Thanks for the quick responses. very very basic job its like 10 bolts (off the head guess) and 3 couplers and 1 vacuum hose and 1 hose to the master cyl (vacuum i believe) Hell I can have my intake off the car in like 5-10 minutes just make sure ALL couplers are disconnected! Quote Link to comment Share on other sites More sharing options...
MrMeanGreen Posted July 1, 2007 Report Share Posted July 1, 2007 Yeah, it's not difficult just tedious. Take your time and pay attention, it's maybe an hour job. Quote Link to comment Share on other sites More sharing options...
gillbot Posted July 1, 2007 Report Share Posted July 1, 2007 http://www.ls1tech.com/forums/showthread.php?t=685842 Quote Link to comment Share on other sites More sharing options...
clayton006 Posted July 2, 2007 Author Report Share Posted July 2, 2007 Looking at that thread... will I really need the new harnasses put in? I just want the car to run close to stock at the moment. Also, I heard people re-using the gaskets, but I wasn't so sure about that. Should I change mine out? Quote Link to comment Share on other sites More sharing options...
clayton006 Posted July 2, 2007 Author Report Share Posted July 2, 2007 Would sensors from Auto Zone or Advance Auto be ok? Or should I hold off and get true Delco sensors? Quote Link to comment Share on other sites More sharing options...
AJ Posted July 3, 2007 Report Share Posted July 3, 2007 i would go delco, if you come over to pick up that air dam i can show what you need to take off. i've never had to replace the wire harness on one and the gaskets are reuseable aslong as there not cut or damaged. Quote Link to comment Share on other sites More sharing options...
clayton006 Posted July 3, 2007 Author Report Share Posted July 3, 2007 Yeah I'll stop by sometime either Wednesday or Thursday (whichever is best for you) and we can take a look. I've had my LT1 intake off before (with the help of Josh M.) but never tackled this one yet. At least my new thermostat is working :-) Quote Link to comment Share on other sites More sharing options...
clayton006 Posted July 5, 2007 Author Report Share Posted July 5, 2007 Well, the two delco knock sensors did not take care of the problem. It ran a lot better for about 1 hour, then the code threw again and it started running rough. The code is the knock sensor circuit low input code (the guy at autozone didn't say which bank it was reporting back, I may want to have the codes scanned again) It looked like one of the connectors to the rear knock module had a little bit of oil or some liquid around it. Could this now be a problem with the connector? It didn't look like a lot of fluid.... Any other suggestions? Quote Link to comment Share on other sites More sharing options...
clayton006 Posted July 5, 2007 Author Report Share Posted July 5, 2007 The code I received was the P0327 Knock Sensor 1 Circuit low input Quote Link to comment Share on other sites More sharing options...
clayton006 Posted July 5, 2007 Author Report Share Posted July 5, 2007 It looks like I might have some bad wiring or PCM. Does anyone have a PCM for a T56 that has a relatively stock program just to test it with to see if that is the culprit? Quote Link to comment Share on other sites More sharing options...
gillbot Posted July 5, 2007 Report Share Posted July 5, 2007 Looking at that thread... will I really need the new harnasses put in? I just want the car to run close to stock at the moment. Also, I heard people re-using the gaskets, but I wasn't so sure about that. Should I change mine out? most replace the harness since it gets brittle over time. Quote Link to comment Share on other sites More sharing options...
clayton006 Posted July 6, 2007 Author Report Share Posted July 6, 2007 Well strange thing happend. I got home from AJ's house and put on the air dam. I started driving down the road and the SES light went off. I started and stopped the car a few times and the light never came (and stayed back on, the light still worked when it tests all of them at the beginning of a start) So it looks like it might be ok now, but it still has a good miss to it. Looks like I have to start from scratch on that! Quote Link to comment Share on other sites More sharing options...
smokin5s Posted July 6, 2007 Report Share Posted July 6, 2007 Clayton, you should have stopped by when you were at AJ's... I live right down the road from him. Quote Link to comment Share on other sites More sharing options...
clayton006 Posted July 8, 2007 Author Report Share Posted July 8, 2007 Yeha I know, you haven't returned my calls so I figured you've been too busy :-) Quote Link to comment Share on other sites More sharing options...
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