LSCha0s

iTrader: (4)

So I took the LS1 (LS6 intake MS3,cam LS1) out of a 99 Camaro with wiring harness and PCM put it in my 91 Corvette. I sent the PCM off and had a bunch off stuff turned off basically like it was going into a hot-rod. I figured the tune would be close enough where it would be at-least drivable.. It will Idles but it dies as soon as I put it in gear. I always planned on having a dyno tune done but I won't even be able to get it there now without a tow.

The only difference between the Camaro and my car would be intake, exhaust and gear ratio. Gear ratio ..mine 3.07s Camaro 3.23 I believe and 300 higher stall.My car has a better intake and stock 98 Corvette manifolds going into stock dual LT1 exhaust. The Camaro had LT headers and stock exaust. I also had the rear 02s deleted would this be the cause of the tune being off so much? It's pretty rich and already fouled a set of plugs just running it through one heat cycle.

http://www.youtube.com/watch?v=Gk1p_...ature=youtu.be

SMOKINV8

iTrader: (6)

Try unplugging the MAF and see if it still does it. The different intake can screw with how the MAF needs to be calibrated. It's a slim chance, but it's the only thing outside of an oversight in the tune that I can think of off the top of my head.

And your video doesn't show your car dying at all, it just showed it sitting there idling.

LSCha0s

iTrader: (4)

Thanks Ill try that when I get home this afternoon and maybe shoot a video of it dying as well.

jimmyblue

iTrader: (11)

Scan for the "Trans Current Gear" PID and see if the PCM
knows it's in gear. There are running airflow tables that
should compensate for in-gear trans load, as long as the
PCM knows what's what (and, you populate the data to
suit the real load / motor efficiency at idle).

SMOKINV8

iTrader: (6)

Also, I know F-body 4L60e transmissions aren't directly cross compatible from LT1 to LS1 cars. Not sure how that works with the Corvettes.

LSCha0s

iTrader: (4)

I'm not sure if the scanning software I have will do that. I have a OBDlink SX.. with OBDwiz.. I will look into that. I also noticed I need to adjust my trans cable maybe you have a point. I was able to put it into gear today after it warmed up and feathered the throttle enough to pull it out of and back into the garage. I also tried to disconect the MAF but that just made the problem worse.

I don't believe that is it.. I should have mentioned I have a built 4L60E out of a 2000 GM truck.

Thank you all for the response the more I think about this the more I believe I just need a good tune. I was worried that there was a problem and I sure hate to have a tuner come over only to tell me I have issues that need to be fixed first.

LSCha0s

iTrader: (4)

I think I got
It is still running a little rich but it runs so much better. I took out the IAC cleaned it up and did a TPS relearn. Now it starts right away and does not die when I give it gas. It is up in the air right now because Im trying to figure out how to adjust the trans linkage but Otherwise its much better..