You need a Wideband to tune wide open throttle. The O2 sensors shut off and do not produce a reading. As soon as you jam on the gas pedal (or let off real fast) it will go to open loop. Your...
Type: Posts; User: Lakegoat
You need a Wideband to tune wide open throttle. The O2 sensors shut off and do not produce a reading. As soon as you jam on the gas pedal (or let off real fast) it will go to open loop. Your...
Disable all 3 including starter.
Was the 4L60 transmission plug used on the 4L80 when you got it?
Did you use a conversion plug between the 4L60 plug and the trans when you started changing things? If so, the previous owner...
Log Cam counts and see if it is counting. I have seen a couple of wiring harnesses that have had the two outside wires reversed on the cam sensor plug. Should log 1 to 250 pretty quick and start...
Welcome: Be sure and attach your tune and log file of the events so you can get help. And a little explanation on how you are getting fuel to the high pressure pump.
The MAP Characteristics for Linear and Offset should be 128.20 and -0.30 for that MAP sensor. Did you try those numbers?
No, I am saying it worked for me.
I am using a 2012 E38 from a Sierra, VIN 3GTP1VE02CG125518, OS 12653249
T42, OS 24243356 to run a 4L80/ 5.3 with a 08/09 truck harness in my Camaro.
The harness had a T42 plug and a 4L60 plug. I...
Ok, Thanks. I am going to forget about the extended tip. I have my injectors pointing at the intake valve. I haven't looked at the LSA intake and didn't know they had a wonky spray pattern.
Does anybody know the purpose of the extended tip on the LSA injectors? I am wondering if they are good for any blown application, or just the LSA manifold design? Thanks
You said it was bleeding down to 0 when you shut off the engine. The check valve is doing nothing. If you want it to hold pressure, mount it in the return line. Otherwise, turn the key on for 3...
Try using the other RPM in channels. There is RPM (SAE) and another RPM channel. Run both of them. If that doesn't solve it, then on the Crank sensor plug, switch the two outside wires. That may...
Does that mean that I need to reduce the numbers in the over/under? I just put them back to stock.
The trims should look better than that. That was a startup in the garage to see what my timing...
Thanks Alvin, I put under and overspeed back to stock. My car is a rockin'. How do I smooth out the idle?
The L83 throttle body has a different plug and wiring then Gen4, so I switched to the Gen 4 TB. Acc pedal is a Corvette item and has the same plug as the truck pedal. I used a stock 2012 GMC...
I will get on it. Thanks
Changed the spark table.
Looked up a 2013 Corvette Auto tune and used the trans airflow, ac airflow. I will load it up tomorrow and see how it acts..
Thanks
The TB is an 85mm GM that has been cleaned up a little. The heads were worked by Katech---they just do a clean up on the L83 heads because they flow pretty good as is. Pistons are forged L83 with...
This is a 5.3 with a Whipple. Cam is CM 230/248, .631/.629 115.5 lsa, overlap 8.6. PCM is a 2012 Silverado and is stand alone. The engine is in a 2000 Camaro.
It runs good so far as the few...
I tried downloading the program, but got to extract zip file and it stops and says I need some other program from Windows. Tried that and it says cannot download.
Anyway, I don't need my tables...
2012 E38, 2006 4L80E
When in 1st gear, trans shifts to second. I need to tune that out. I am using the same tune as my previous 4L80, but it doesn't work on this one. Also want trans to hold...
Here is a copy of my tune that I have been using for YEARS. However, my trans is not stock and the engine is not either. You didn't list any mods, so I guess that your truck is stock? You can...
The price of a good running car :-)
It's a good idea to give everybody some more info---like make of vehicle, year, engine, trans type, mods done? Maybe a copy of your tune and a scan if you have one??
I have a 2012 E38, OS 12653249 and TCM OS 24243356. (5.3 with 4L80E). I used the 4L60 trans plug and moved the wires around in the plug to work with the 4L80. Let me know if you want the info. ...