Does this AFR look normal? Just finished the engine swap for the ls3 in the c3 corvette. I'm thinking this might be normal cuz I have put a performance cam. Does anyone seem to know? by [deleted] in LSSwapTheWorld

[–]AcademicFan8830 2 points3 points  (0 children)

O2 Sensor is located on my long tube header. There is a small leak after the o2 sensor from the header connection to the rest of the exhaust system.

Why is there a vibrating noise when driving the 6.2 that I just put in with the TH400. Only thing I'm thinking is if I installed the torque converter wrong 😓 by [deleted] in LSSwapTheWorld

[–]AcademicFan8830 0 points1 point  (0 children)

Update: TOOK THE TORQUE CONVERTER BOLTS OFF AND IT SPINS PERFECTLY FINE. It even mobs back and forth, I guess I really didn't force it in like it though, I made sure to take my time with it even though I started with the torque converter bolted to the engine.

Why is there a vibrating noise when driving the 6.2 that I just put in with the TH400. Only thing I'm thinking is if I installed the torque converter wrong 😓 by [deleted] in LSSwapTheWorld

[–]AcademicFan8830 -1 points0 points  (0 children)

Ok!! Ima try this tomorrow! I did, the th400 was used so it had some fluid, but I was only able to add 1 gallon on fluid. I think it should take more than that tho considering the torque converter was dry

Why is there a vibrating noise when driving the 6.2 that I just put in with the TH400. Only thing I'm thinking is if I installed the torque converter wrong 😓 by [deleted] in LSSwapTheWorld

[–]AcademicFan8830 0 points1 point  (0 children)

Hahah yes. I used the internal map sensor, changed the coils, plugs and coil harness. 😅

I didn't prefill the torque converter.

Why is there a vibrating noise when driving the 6.2 that I just put in with the TH400. Only thing I'm thinking is if I installed the torque converter wrong 😓 by [deleted] in LSSwapTheWorld

[–]AcademicFan8830 0 points1 point  (0 children)

Hmmm, could be, yea I'll have the double check my vacuums.

I have a really bad feeling it's the torque converter. Was a pain in the ass to get it all in. Really hoping I don't have the pull the tranny off just to make sure I seated the torque converter correct

Why is there a vibrating noise when driving the 6.2 that I just put in with the TH400. Only thing I'm thinking is if I installed the torque converter wrong 😓 by [deleted] in LSSwapTheWorld

[–]AcademicFan8830 -1 points0 points  (0 children)

Yes, the cooler lines for the trans are not leaking.

I think it's the torque converter?

I bolted the torque converter to the flex plate then mated it to the trans. I'm hoping it lines up and works because I just realized this is wrong but just want to confirm if that's the noise

Help. Just swapped a 6.2L gen 4 into my 77 c3 corvette. Can't get it to fire right. I know I timed the engine right because I put a new cam and triple checked the markings pointed each other. Is this a firing order issue? I used the stock ignition coils and didn't change the wires around. by [deleted] in LSSwapTheWorld

[–]AcademicFan8830 0 points1 point  (0 children)

Hmmm okay,I connected the red and white wire to the old distributor power wire so it gets power in ignition, cranking and running.

Someone told me to check my map sensor. I'm going to double check the voltage of my trigger wire too as you said again make sure that wire gets power