I just completed GM TBI install on a Jeep 258 straight 6 stock motor. I running stock everything except a glasspack muffler. I have also installed a Motorcraft TFI coil on the stock distributor (weights and vacuum advance removed) with large rotor and distributor cap , 8.8 mm wires and am using a GM 8 pin EST. I have checked all voltages and run the Initial System Setup/Must Read checks. Timing is set a 0 with unplugged bypass, IAC is set a 500 rpm, TPS is .46 which is a little low, and fuel pressure is 12 lbs input, 1-2 lbs return. Fuel pump is an E2182 and ECM is 1227747. Donor vehicle was a Chevy Astro Van 4.3 Liter. On to the problem. The first few times I started the motor is started well and ran great. Now the motor will not start. The initial fuel sprayed into the Throttle Body during the Starter run seems to be flooding the motor. The only way I have found to get the motor started is to let the motor flood on the initial attempt to start, unplug the injectors and crank until the motor catches and then quickly connect the injectors again. Does anyone have any ideas as to how to correct this problem? Does the GM ECM have a flood circuit where flooring the accelerator will cut out the fuel flow to pass the overflow of fuel? It does seem to work in my application. During a couple of test drives, the horsepower seems a little weak with the current setting. I haven't built an ALDL cable yet, and will need to borrow a laptop for logging data. I need to get the starting issue fixed before trying any fine tuning. Bill noted in one of the threads that the GM tables are heavy on fuel at startup for an AMC motor, but I wouldn't think it was so bad that it would flood the engine.