I have a stock 02 corvette engine, harness, dash harness, fuse blocks, pcm flashed out security. Everything is all hooked up using the OEM connections for the whole setup.

I got a bcm module from a different car. Does this need to be matched to Ign Key? Or can it be flashed? I'm getting ready to try and fire it for the first time.

 

ditch the BCM and disable VATS in the PCM

 

I got everything hooked up to the harness the whole setup from the donor C5.

When I crank the key I can hear a few relays in both fuse boxes and click at the TB, it's a drive by wire setup. I have Mil light mocked up and it luminates with the key on. I measure 12 volts at the coils.

I don't hear the pumps prime and no crank with the key in start. I can bump the starter with a screw driver and it turns over. I guess I gotta check the grounds?

Also I couldn't get reading off of the ODB port with hand held tuner?

 

Keep the BCM and disable VATS. The BCM makes thing much easier than most would think. You can use all the options of a new modern car power locks, have in turn interior lights on and off, use the flasher unit within it, door chimes, ect. You get the idea. Instead of using relays and wiring everything separately you can use a BCM and eliminate a lot of 30-40 year old wiring. I am running a 99 LS1 T56 and plan on using the simplest GM manual trans BCM I can find. I work for easyperformance.com we are a wholesaler. A couple of sponsors here sell our products (Speed Inc, Afterthought Auto, not sure who else). If my set up goes well we hope start selling a kit.

 

I got the ODB port to power up the diablo and grabbed these codes
P1220 Throttle position 1 circuit and P1221 Throttle Performance.

I had to add a ground to the black cable of the ODB connector.

Also I'm trying to fire this on the frame only.

 

Is it a no crank no start or a crank no start problem? If VATS was removed the ign key shouldn't matter

 

At this point it's a no crank issue, Vats has been removed and I'm planning on keeping the BCM.

What did you mean by the ign key doesn't matter?

 

If VATS has been removed it shouldn't care if the ignition assembly/key are the correct set for the PCM. I would first check to see if when the ignition switch is in the start position that it is out putting anything. Then check to see if that out put(12v signal) is reaching the starter. Hope that makes sense. It's 2:07 here and I just got home from the bar.

 

Here is what I tried today, I can bump the starter with screwdriver and squirt a little starting fluid and it does fire up and run.

But I still can't get it to turn over with the ignition s/w when I turn it to run I do here the throttle body actuate along with some relays energizing.

My fuel pumps are now plugged in and I have 5v on the blue wire but I don't hear them prime, they have no fuel in them not sure if that matters. I also don't have any fans wired in yet.

Keep in mind I'm running this out of the car on the frame only. I did find 2 more grounds that weren't hooked but same results.

When I try to pull dtc codes I get the following:
P0101 - Mass Air Flow (MAF) Sensor Performance
P0102 - Mass Air Flow (MAF) Sensor Circuit Low Frequency
P0103 - Mass Air Flow (MAF) Sensor Circuit High Frequency
P0106 - Manifold Absolute Pressure (MAP) System Performance
P0108 - Manifold Absolute Pressure (MAP) Sensor Circuit High Voltage
P0125 - Engine Coolant Temperature (ECT) Insufficient for Closed Loop Fuel Control
P0128 - Coolant Thermostat Below Thermostat Regulating Temperature
P0131 - Heated Oxygen Sensor (HO2S) Circuit Low Voltage Bank 1 Sensor 1
P0132 - Heated Oxygen Sensor (HO2S) Circuit High Voltage Bank 1 Sensor 1
P0133 - Heated Oxygen Sensor (HO2S) Slow Response Bank 1 Sensor 1
P0134 - Heated Oxygen Sensor (HO2S) Circuit Insufficient Activity Bank 1 Sensor 1
P0135 - Heated Oxygen Sensor (HO2S) Heater Performance Bank 1 Sensor 1
P0152 - Heated Oxygen Sensor (HO2S) Circuit High Voltage Bank 2 Sensor 1
P0153 - Heated Oxygen Sensor (HO2S) Slow Response Bank 2 Sensor 1
P0154 - Heated Oxygen Sensor (HO2S) Circuit Insufficient Activity Bank 2 Sensor 1
P0155 - Heated Oxygen Sensor (HO2S) Heater Performance Bank 2 Sensor 1
P0171 - Fuel Trim System Lean Bank 1
P0172 - Fuel Trim System Rich Bank 1
P0174 - Fuel Trim System Lean Bank 2
P0175 - Fuel Trim System Rich Bank 2
P0200 - Injector Control Circuit
P0230 - Fuel Pump Relay Control Circuit
P0300 - Engine Misfire Detected
P0325 - PCM Knock Sensor Circuit
P0327 - Knock Sensor Circuit Low Voltage
P0332 - Knock Sensor 2 Circuit Low Input (Bank 2)
P0335 - CKP Sensor A Circuit Performance
P0336 - Crankshaft Position (CKP) Sensor A Performance
P0341 - Camshaft Position (CMP) Sensor Performance
P0342 - Camshaft Position Sensor Circuit Low Input
P0343 - Camshaft Position Sensor Circuit High Input
P0562 - System Voltage Low
P0608 - Control Module VSS Output "A" Malfunction
P0654 - Engine RPM Output Circuit Malfunction
P0706 - Trans Range Switch Performance
P0711 - TFT Sensor Circuit Range/Performance
P0713 - Transmission Fluid Temperature (TFT) Sensor Circuit High Input
P0719 - Brake Switch Circuit Low Input
P0724 - Brake Switch Circuit High Input
P0740 - TCC Enable Solenoid Circuit Electrical
P0742 - TCC System Stuck On
P0751 - 1-2 Shift Solenoid Valve Performance - No First or Fourth Gear
P0752 - 1-2 Shift Solenoid Valve Performance - No Second or Third Gear
P0753 - 1-2 Shift Solenoid Circuit Electrical
P0756 - 2-3 Shift Solenoid Valve Performance - No First or Second Gear
P0757 - 2-3 Shift Solenoid Valve Performance - No Third or Fourth Gear
P0758 - 2-3 Shift Solenoid Circuit Electrical
P0785 - 3-2 Shift Solenoid Circuit Electrical
P1111 - Intake Air Temperature (IAT) Sensor Circuit Intermittent High Voltage

 

I did have the pcm tuned with VATS disabled, does anyone know if the theft deterrent relay is also bypassed by doing this? Or for that matter what all does having it disabled include?

 

I finally got a corvette cluster today and plugged it in. I performed the 3 -10 minutes cycles for the bcm relearn according to the posts regarding this procedure.

When I turn the key to 'on' the DIC displays Pull Key wait 10 Seconds, I did that then Service Steering Column Lock, Reduced Engine power, and Service Engine Soon, I also have check gauges light on? Still doesn't won't crank over.

I tried to pull codes from the dic but I was unable to. I followed the procedure another forum to get codes directly from the cluster? The column and cluster is from an earlier model not sure if that makes a difference? The column is only hooked up electrically.

Any thoughts? TIA

 

not sure on the vettes but on the fbodys the ignition switch goes to the vats module then to the starter so in reality if you get the bcm programmed it should work. all you need is a tech2.

 

Can the Tech 2 program the bcm on what vats key code to use? I can get all 14 keys for like $40 is it worth doing? I don't have a tech 2.