Alright let me say I'm not going to sugar coat anything...this ******* car is having so many problems I dont know where to begin. Specs 2003 Corvette Z06 Magnacharger, NOS dry shot(yes is is actually NOS), cam, headers, intake....
I do have HPTuners but have not used it to troubleshoot anything, still learning. I am actually waiting to go to the The Tuning School seminar so i can use it efficiently. But i can do some simple things and record for you all if that will help :/ Well here it goes...............

Reduced power mode all of a sudden at idle or while in low gears normally, also idle sometime stumbles down to 500rpm which I when it feels like it will go into limp mode soon

Sometimes, usually cruising, there is a studder in power, no change in throttle position just sudden slight loss in power

Stalling out while idle or when pushing in clutch after driving, rpms just plummet to a stall

Idle also stays too high ~1200-2000 rpm in motion sometimes, when I slow to a stop and the speedometer shows zero the idle drops and returns to normal ~850 rpm

low oil pressure sometime have seen it run as low as ~23 while idling, dont know if its an issue, but just checking

Loss of all gauges including a/c, radio except rpm, speed and voltage stay working

Lose temp gauge, maxes out and shows xxx in digital readings on dash

Overheating to ~220 while idling,

while cruising in 5th or 6th gear then pushing on the throttle sometimes service abs, traction ctrl system, and service active handling

Again all of these are seemingly sporatic issues!! They NEVER always happen when i do something. But every day AT LEAST one of them will occur. PLEASE HELP!!!!!

codes
10-PCM
P1221 H C
P1515

28-TCS
U1301
C1225
C1223
C1278
C1283
C1293

40-BCM
U1255
U1096
U1016

58-SDM
U1301
60-IPC
U1255
U1064
U1040
U1016
U1160
U1176
U1088

80-RADIO
U1016
U1064
U1096

99-HVAC
U1064
U1096
U1160 C
U1255
B0361 C

A0-LDCM
No Comm.

A1-RDCM
U1255
U1064
U1016
U1096

A6-SCM
U1300
U1016
U1064

B0-RFA
U1255
U1096

 

Why don't you get it tuned by someone with experience if you want to drive it. Has it ever been tuned with those mod's?

 

I wouldn't drive the car until it gets looked at by a tuner. It's possible that the car was thrown together to run but not properly. If you have to drive the car do not beat in it or spray.

 

Get the car tuned. But I have a strong feeling that you have really bad electical issues. Who did the mods for you?

 

I've actually inherited these problems. I havent done anything to the car since it was bought. So...tuning is def a possibility as idk if its been tuned for the mods. Guess i figured you spend nearly 10K in upgrades you would get a tune?? Just seems logical to me, but i know there are people who like to cut corners out there. Well look like I'll be talking to www.lethalperformancesatx.com this month to see what they can do for me.