Moses, your website has been extremely useful for me while working on my 1989 Jeep YJ Wrangler 2.5L TBI engine. I have used it for testing just about everything on my jeep. I have replaced several items because of extremely high emissions. Today was the 4th pass through the test, and I finally passed my emissions test.
I have replaced the ignition coil, ignition control module, spark plugs, cap and rotor and set the base timing, map sensor (because it did not hold vacuum), coolant temp sens