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It starts up fine at every temp. I haven't had a chance to mess with it anymore since I've been sick, but hopefully this week I'll get back on it.

Anybody else have some suggestions for me to try today?

Well I had already increased the spark and idle RPMS and that helped out when it wouldn't even hold a steady idle. Did a little bit of retuning and redoing the BRAF table. I tried increasing the...

I have a 99 C5 with an LS3 heads/cam motor and a Fast 102/ls2 throttle body. I got it to idle and drive alright, but if I blip the throttle from park or let off the throttle at a low mph the car...

I'm glad I found your post. I've had this problem forever and will see if this fixes it.

I had this problem with my C5 also. Even just idling out of nowhere it would set the code and go into REP. I kept slowing increasing the table until eventually I just maxed it out and it would still...

VE and MAF are pretty close. At idle and during increasing and steady throttle the AFR error is within a few percent. It's the second I let off the gas or even just clutching in to shift gears that...

I've been having this problem for a while with my c5 corvette and I can't seem to figure out how to fix it. My car goes very lean on decel. I thought it might have been DFCO but I'm pretty sure I...

Ok, I downloaded a stock file I found in the repository and when I compared it there seemed to be quite a few things different. I'm not sure why or if he changed them, but I made all the...

Thanks for the advice, I'll try and find a stock file in the repository to compare it to.

A buddy of mine was having trouble tuning his car with his EFI live (cam bucking, dying on take off, erratic idle, etc.) so I pulled his file with HPtuners and made some adjustments for him. Car runs...

Yeah, I came across one of your old posts and gave it a try yesterday. 4.75 volts at wot so we backed it down a little and now it's shifting like it's suppose to. Thanks for your help again

I have a friend of mine who's car is shifting way before the disired shift points. He had it tuned by a big name tuner, but it was on a dyno so he probably never verified the trans settings. It's a...

Funny I should come across this thread, but the same thing happens with my C5 and it's only n/a. At idle it always goes into REP. Never at cruise or at WOT. I've raised the table over 50% and still...

OK, thanks for the advice. I'll put it in closed loop and tune retune the VE and maf off the o2 sensors instead and see if that helps.

Anybody know what could make the car go lean on decal if DFCO is turned off?

I'm on my work computer right now, but I don't recall the IPW going that low. So if it isn't going into DFCO, what else could cause a car to go very lean when you let off of the throttle?

Can somebody take a look and let me know what they think. Thanks

Test it with your scanner. Look at iat and then flip the switch and see what temp it jumps too. If it isn't high enough add another resistor. Then find the corresponding temp in the iat spark adder...

My car goes really lean everytime I let off the throttle. It has a Monster level 3 clutch with a lightweight chromoly flywheel. Could the flywheel causing this? I thought I disabled DFCO but...

I'm working on the tune for a corvette and on the first crank it has a crazy idle swing, and then after about 8 swings it levels out and idles great. Can someome look and tell me what they think it...

I had posted this up because that was the only tune the car idled for a few seconds on. Then no matter what changes I made I could never get the car to turn back on. Anyway, long story short there...

I'm having a really hard time trying to get the tune on this 2010 corvette going. It went from being completely stock to a bunch of mods. Now has SLP blackwing and airbridge, Ported intake, touched...

I was somewhat satisfied with how my tuner had tuned my car, but the cold start has always bugged me. Once it warms up it will idle ok, but I have to give it gas on a cold start to keep it alive. Can...

Yeah, I'm down in South Texas. It's all ranchland out here, lol. Thanks for all the help guys. Hopefully I'll get everything in to do the install this weekend and then I'll be able to get started on...