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Just checking if people are using hall effect vss sensors, if not, it will be bad. My patch fix was to plug one in to the ECM wiring and even though I didn't connect it to the transmission to read......

Note... There are a few VR to hall effect converters out there. I was trying to cheap skate it and use a current sensor to pick up VR pulses and output a digital output signal. The actual converters...

I just figured this out myself. I bought a Corvette ecm and will tell you now that you don't need it, the L83 ecm will work. I have an fbody t56 and tried rigging a VR to hall effect sensor converter...

I was simply flashing the C7 tune on my L83 ecm after copying over the differences - this would never work right for some reason.

Now, I paid a guy to do a factory reflash of an ecm to a c7 manual...

Did this do the trick to make it run smooth like a manual? I'm about to try it with mine.

same here... its very frustrating to pay for something and then lose part of that functionality.

I wish there was more public info on this topic but there does not seem to be.

Note* you likely have the older fuel rail pressure sensor which is not on the 2016 and up LTs

I have a 15' L83...

Did you ever get it running solid? Curious what you did.

seems like the throttle relearn and ltft reset are probably to blame for my new pains. Going back to redoing the MAF then SD tune and go from there.

Yes, charger or jumper it to a running car

Hi, wrestling back n forth with adjustments and going back to stock tables from time to time. Need to dial in the idle and also would like to know if anything obvious stands out in the log that might...

I didn't run the fpcm and am fine with the 58psi from the vette filter/regulator. you might be dealing with a different issue. Always run extra electrical power when first starting and get the rail...

Did the calculated VSS option work?

Here's where I'm at now...


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Slowly running a lot better through tunning the stock file. Still needs VT dialed in, I've only played with small adjustments and increased the overall RPM spread by adjusting the graph rpm points in...

Put my stock tune back in with some small tweaks on a maf only tune and it ran a lot better

still strugling with this thing. Here's the current tune:

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I've noticed different hang behavior based on VT settings. No tuner here, but I'd wonder if lowering the respective VT cells of that part of the map might help.

the 30% tps reading and zero oil pressure still seem to be happening randomly but I did get the car to drive using maf only mode. I'm getting misfire codes when I try driving, not sure if thats the...

Gonna check my connections around the engine and order some ferrite core noise suppressors for my grounds and see what happens.

Here's the 2 logs to see the difference: the last tune file was the one that logged good. the attached was the one that gave me problems.

Tried to go at it again today and noted some strange stuff. After writing entire one time, I noticed the throttle reading and oil pressure were showing on the scanner. Engine sounded very healthy (I...

if you login on HP and go to your account, and then you'll show a tab on the right called tune repository... you'll find some there

forgot to include the stock tune. see attached. and note that I flashed the ecm as a 2015 C7 6mt after this point before proceeding.

it some scans it will appear the throttle won't register any...

Hi everyone,

My name is Gabe and I'm currently working to try and finish my swap and get it running. I'm new to HP Tuners (1st vehicle to use it), and my tuning experience only goes as far as some...