Gents,
She was running like a scalded dog and then suddenly began acting flakey. Before, you could stab the throttle at any RPM, even at idle and it would respond with no hesitation at all. Now, especially at Idle and just off-idle it stumbles really bad and then snaps your neck. It's almost like it doesn't see the throttle position or has a vacuum leak. I don't know, I replaced the plugs and wires, ran some Sea Foam in the fuel tank, checked the air filter and then finally pulled the DTC's. I'm all ears if anyone has an idea. I could only find codes for a 2000 on the Internet so what I have so far is based on that information.
Thoughts?
Thanks Much!

2001 Corvette, Recorded August 24, 2005
10-PCM (1 Code)
P1514H * Throttle Body Performance

60IPC (6 Codes)
U1160H
U1040H
U1016H
U1064H Loss of Communication w/ DCM
U1088H
U1176H

80 Radio (3 Codes)
U1064H Loss of Communication w/ DCM
U1096H
U1016H

AO-LDCM (7 Codes)
U1255H Serial Data Line malfunction
U1016H
B2208H * Right Window Down Switch Circuit
B2282H * Battery #1 Circuit
B2284H * Battery #2 Circuit
U1255H
U1064H Loss of Communication w/ DCM
U1016H
U1096H

28TCS (2 Codes)
C1278H * TCS Temporarily Inhibited By PCM
C1293H * DTC C1291/C1292 Set in Current or Previous Ignition Cycle

 

It looks like you had loss of communications with several of your modules(all history codes). I would try to reset the codes and see if they come back, they might not. Check your battery voltage as well, low voltage can cause weird things to happen. Check your alternator connection while your at it. And check your grounds too.

Good Luck,

AZC5

 

I think that P1514 code is the relevent one. Here is the troubleshooting info. It sounds like an air leak somewhere.

GL!

 

Good suggestions!

I did find a good article about ground connection problems on the forum and sure enough mine were just about as bad so I cleaned them up and it made a world of difference. Then it began intermittently missing like mad. I mean it will miss really bad for a few and then clear up and run great. I pulled the codes and they're even different than what I had before.

2001 Corvette, Recorded August 28, 2005
10-PCM (1 Code)
P0151 Heated Oxygen Sensor (HO2S) Circuit Low Voltage Bank 2 Sensor 1
P0174 Fuel Trim System Lean Bank 2

I'm going to check the connections to the Alternator like you recommended, then to the H2O sensors. I do know the H2O sensors that were behind the cats have been removed but I thought they were depleted in the tune. I'll have to check but I don't think this is related since it popped up so much later.

Thank you very much for your advice.
Take Care!

 

I'm assuming the leak can be anywhere but the error is noticed by the MAF? Is this correct? I'll look around but I'm not to sure where to begin. Thoughts?
Thanks Much!