You guys are awesome. This is really good info to have. Now, I am thinking that if it is a bogus resistance reading from the coolant temperature sensor, wouldn't it also affect "warm up" ? In other words, why wouldn't it run really bad until everything is warmed up...As it is right now, once the engine fires and runs for more than 5-7 seconds, it smooths out and then seems to run normally. Or is the ECM only looking at the CTS to tell the injectors how much fuel is needed to start the car, and that's it. Trying to understand how it's supposed to work. I will see if I can locate the CTS and read the resistance with an Ohmmeter, and record the values...let you know what I find out. Thanks again for your replies. I really appreciate everyones help !