LS1 not making power
#2 a "backwards O2 sensor can't happen unless the wires in the harness pictured weren't repaired correctly. The O2 sensor plugs in only one way because the plastic part of the plug will only let it be plugged in one way. I'm not sure if he meant the harness for the front O2 were plugged into the rears, your description is rather vague. But in my experience the harness for the fronts will not reach the rear O2 sensors.
I was unable to get a good feel for what was wrong with the car from video because I am on my phone or because the sound was drowned out by the other cars on the strip, or the second video seems to be like 5 seconds... However, you should find someone with EFI live or HP Tuners (what i use) or a tech2 to scan your car and pull the codes. And when you get them put the actual codes up. I understand you are getting a missfire... That will come up as P0300 (random missfire) usually followed by a cylinder (P0302 for cylnder 2, P0304 for cylinder 4, you get the idea) that can tell you a lot. Also the scanning equipment will pull up fault codes that haven't tripped the Check Engine Light yet. Again I wasn't able to get any idea of what's going on from the video but you need to get a competent tuner to look at your car. 90% of the time they will.be able to point you in the right direction right after they plug in. And I must emphasize... A COMPETENT tuner. Anyone who is going to "turn off" or "tune out" your knock sensors is not a competent tuner in my humble opinion. If a car is in such a state as yours the knock sensors migt be the only thing saving it from predetonating itself to pieces. Good luck.
Last edited by ryridesmotox; May 6, 2013 at 01:03 AM.
#2 a "backwards O2 sensor can't happen unless the wires in the harness pictured weren't repaired correctly. The O2 sensor plugs in only one way because the plastic part of the plug will only let it be plugged in one way. I'm not sure if he meant the harness for the front O2 were plugged into the rears, your description is rather vague. But in my experience the harness for the fronts will not reach the rear O2 sensors.
I was unable to get a good feel for what was wrong with the car from video because I am on my phone or because the sound was drowned out by the other cars on the strip, or the second video seems to be like 5 seconds... However, you should find someone with EFI live or HP Tuners (what i use) or a tech2 to scan your car and pull the codes. And when you get them put the actual codes up. I understand you are getting a missfire... That will come up as P0300 (random missfire) usually followed by a cylinder (P0302 for cylnder 2, P0304 for cylinder 4, you get the idea) that can tell you a lot. Also the scanning equipment will pull up fault codes that haven't tripped the Check Engine Light yet. Again I wasn't able to get any idea of what's going on from the video but you need to get a competent tuner to look at your car. 90% of the time they will.be able to point you in the right direction right after they plug in. And I must emphasize... A COMPETENT tuner. Anyone who is going to "turn off" or "tune out" your knock sensors is not a competent tuner in my humble opinion. If a car is in such a state as yours the knock sensors migt be the only thing saving it from predetonating itself to pieces. Good luck.
#1 I asked him to tune them out, they serve no purpose at all considering I have no knocking and it's pulling the timing and I've read countless threads of the problem not being fixed without tuning them out
#2 He meant they were plugged in the rear o2 sensor spots, mine have extensions
Cars ran for 100 years without knock sensors and I have raced and driven more without them than with and have never had any trouble and I'd love to see proof that someone actually has.
And no I am not getting any misfires I don't really know where you got that from the only codes I am getting are P0332 P0327 and a couple of o2 sensor codes that I didn't have written down
Modern cars (term used loosely, knock sensors have been around for 3+ DECADES) require them as a safety measure where a computer controls very complex timing tables. Deleting knock sensors due to false knock is like a bandaid on a bullet wound.
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Edit: I saw you replaced the knock sensors. Dud the wires look like they had any issues? I replace 3 MAFs in my last car before I pulled my head or of my *** far enough to see that the writing had split and was causing a low voltage issues. Wires near motors go through hear cycles and it's only a matter of time before the wire insulation becomes brittle.
Last edited by ryridesmotox; May 9, 2013 at 03:19 AM.
If they are still throwing a low voltage code, which is one of the codes you cited earlier then that is not knock. A low voltage is an issue with the wiring harness or the sensor. P0327/0322 are low voltage code. Now let me try and lend you some of my limited knowledge... Some guys out there, tuners specifically, may have experience with this. You must do more than just turn off the sensor code. You actually have to turn the sensor sensitivity down
http://www.obd-codes.com/p0327
http://www.obd-codes.com/p0332
Again, unless your codes are different then the other post in this thread then your knock sensors are not reading correctly.
When did this problem start to happen? Was it isolated after the trans was put in or did it start after?
On the first page you were asking where your MAF and O2 sensors were. I find it funny that you are now all of a sudden a racer who runs modern cars without the necessary engine management sensors.
Last edited by ryridesmotox; May 9, 2013 at 06:49 PM.


Last edited by peteggl; May 11, 2013 at 09:25 AM.

