Hey man I been searching for a week trying to find the answer to this very question. It was exactly what I was needing to know. You guys were awesome. Now I can finally stop worrying 👍
Just so people know, you should never cut threads without oil lol, also you can do this to a gen 3, if you have a nice intake and don't like the look of the valley cover
It makes a LOT more sense to me to change the threads on the sensor (as I did with my LY6 installation into my 2000 Silverado) since knock sensors are much cheaper to replace if you screw up compared to a block. Plus, the gen IV sensors will still fit if your tuner can work with them. And, it's much easier to change the threads on the sensor at your bench than changing threads in the block while it's in the vehicle with all of the potential obstacles. It just makes more sense all the way around, IMHO.
@@mikeverything4098 it helps if you have a lathe so you can turn the threaded area down to the proper size for the threading die. It can still be done without a lathe, it just takes more time. Typically you'll hold the part in a vise and use strips of sand paper to work it down to size. I don't remember the thread sizes but that's easy to find online or from the Gen IV knock sensors you may have on hand. If nothing else you have the block. I've read conflicting information about wiring Gen IV 2 wire knock sensors into a Gen III ECU that expects a 1 wire sensor. That would be ideal but so far I haven't seen any certainty about it working. Good luck with whichever way you choose.
@@renaissanceman7145 Some info I have found during my research, not sure if correct. Note it appears knock on Gen IV also pulls throttle position (electronic throttle) on knock, not just timing. This is what efilive shows: "The PCM can be used with two types of knock sensors, this parameter allows you to select which type of sensor is fitted to the engine. (This is available in HP tuners so seems to be correct) The standard LS1 sensor is a resonant type, these sensors are connected like so - Sensor Bank #1 - J1,pin51 Sensor Bank #2 - J1,pin11 If the engine is fitted with flat response sensors (like the LS2 uses), then the connections are like so - Sensor Bank #1 GND - J1,pin49 Sensor Bank #1 Signal - J1,pin09 Sensor Bank #2 GND - J1,pin50 Sensor Bank #1 Signal - J1,pin10 Part number for the new flat-response sensors: 12623730 Adaptor harness: www.amazon.com/dp/B082WMTSN5/ So repining the sensor signals needs to be done: Sensor Bank #1 Signal - J1, pin 09 - was pin 51 Sensor Bank #2 Signal - J1, pin 10 - was pin 11 Change sensor type in ecu - then change settings - to what?
Hello.., I had a ls3 on my 2008 corvette, I'm going with a 5.3 ls, but my ls3 has 2 knock sensors just like you were talking about, my problem is use the same knock sensors but I put one right on the block between oil pan and block,, you know on the little metal block squares ,, on one side , but the passenger side doesn't have those little squares, I end putting it on the leap of the block , between oil pan and block, do you think this not gonna work..? Thx, oh I am still working on engine not on car yet,, thx again,,
You said, don't use the gen 4 knock sensors in a gen 3 block because of the tuner probably can't get them to work properly. If thats the case does that mean the tuner doesn't tune actual gen 4 engines in 2008+ GM car or truck? Most experienced tuners you would assume if they can tune a gen 4 engine that they can tune gen 4 knock sensors in a gen 3 block
Honestly I'm just lazy and not wanting to take the manifold off but didn't really think this would work and if its needing tune to change locations its not worth it unless your doing a engine swap or whatever the case may be.
Knocking sensor that's on my 4.5 block to a Ford F-150 1999 wire harness I'm having a problem here I bought this truck with this block in it and it was not the original motor so if someone can help me please be an angel I'm having a problem with the knocking sensor I don't know how to hook it up where to hook it up there was no clip on wire harness on truck
@@Sdpartscenter will I still need this if I have the trg 002 from lingenfelter,if so will I need any other harnesses I have a 98 trans am with a ls1 going to put a l9h(6.2) ls3 conversion in the car
I have been wondering what it takes to put a gen 3 in place of a gen 4? Swapping a gen 3 6.0 into a gen 4 4.8 truck. Main concern is it having a 24x reluctor.
You would have to remove the crank and install a 58x reluctor. Options are: • Install 58x reluctor on crank • Buy a gen 4 • Install holley terminator or other standalone that allows you to select reluctor
I’m putting a gen4 into my gen3 single cab and was wondering what timing damper should I be using if I’m going to use the lingenfelter TRG. I’ve been told to use the 4x but also seen where people use the 1x.
@@ikemunoz951 use a 1x timing set for a 2005-2006 GTO, cloyes part number 9-4205S. I have been researching this as well and just found this information. I also found wire extensions on eBay for the cam sensor and the two knock sensors.
@@williamb2013 we should all make a lil group for gen4 in gen 3 I’m getting ready to finish up my build I used the 4x cam gear and the lingenfelter 24x-58x harness will I need anything else
@@mikeverything4098 I’m in the process of rebuilding an engine for mine. Putting an LC9 where my L33 is. Making a few changes, like a new 24x on the crank. Gas grill came in handy for that.
Since your on the topic of knock sensor would you also have to change the crank from a 24X to a 58X or can you change the disk from a 58X to 24X reluctor wheel?
I recently had a 6.2 ls3 installed in my 06 Chevrolet Silverado 5.3 , they deleted the knock sensors completely, they tried to use the the 6.2 knock sensors with a harness. Said they wouldn’t read. Never tried this. My question is can this cause very poor fuel mileage. I’m talking like 5-6 mpg , it’s awful. I think it’s my problem but I’m not a tuner , the shop said it’s fine. Any help Would be appreciated. Thanks
So if I drill and tap my gen 4 block for gen 3 sensors to use with 24x stock ecm and later decide that I want to use a holley ecm and go 58x, do I need to convert back to gen 4 knock sensors that are only 8mm in size and if so, how do I do that when the holes are drilled for 10mm due to the gen 3 knock sensor conversion?
If you go back to 58x/4x you will have to go back to the Gen 4 style knock sensors. Drilling and tapping the side of the block for the GEN III sensors is kind of a "final solution." If you're looking to convert back in the future, it may be best to rethink your current plans, or you'll have to weld up the holes and re-tap for the smaller thread when you convert back.
You can't convert up the signals from 24x to 58x so you have to remove the crank and add a 58x reluctor wheel. For many it's just easier to sell the Gen3 and get a Gen4.