[Pwrshft99]

My Ranger is a 96 Splash with a 88 2.3T from a TBird.
I am using a 2001 Ranger 2.5 ECU (CPN1) with a Lincoln 80mm mass air (draw thru) and 42lb injectors. I purchased a TwEECer RT and a base tune that is pretty good, but there are a few issues.

Right now I am trying to diagnosis a hard start condition. The truck start every single time and drives very well. However, occasionally I get a backfire and i am required to press the accelerator and briefly hold it to the floor. Otherwise the engine cranks but doesn't fire. My understanding is that flooring the accelerator essentially cuts voltage to the injectors. The TwEECer YouTube videos even mention such a condition. I followed along and made the same changes that were done in the video but the condition did not change.

I have a few other tune issues but I'd like to cut my teeth solving this once.

[skunk]

Welcome...... Look for something in the definition for cranking/startup fuel. You may need to lower the values for likely warmer ECTs.

John