Yes, I have reviewed engine codes here, just wanting to make sure I am correct in my findings is all, and it sure seems everybody here has more than enough brainpower to assist with my check(s). This place rocks.
Ok, went and did a few tests with my Sunpro CP0915 scanner on the 1994 Ranger I-4.
Key On Engine Off testing gave me these blinks with the tone; (possibly 1-1-1 to equal the three, and not the 111 code for letting me know that no problems were found) 3-3-5, 3-3-5, 1, 2-2-4, 2-2-4.
A. I am quite sure the 224 is the DIS primary circuit failure in Coil #1, 2, 3, or 4. I have replaced both coil packs, put on new wires, and new plugs a month ago. Why not it has 178K on it and I have changed plugs and wires a few times, but never the coil packs. Ufortunately as of this typing truck is still running in failure mode (998 according to the tester and manual), and idles at about 500rpm, although nothing has happened, and I have been driving it for a month like this since the above parts change, and all is ok.
B. Sunpro manual says 3-3-5 is the EGR Valve Position (EVP) sensor, or EGR Pressure Transducer (EPT)-signal voltage higher or lower than expected (Key On Engine Off Self-Test).
WHAT the heck is this stuff/thing and where is it?
I have a feeling that if I replace this my idle will return to normal, and all will be ok.
C. Thanks to all who take the time to read through this for me and offer any assistance.
Wednesday, May 1st, 2019 AT 5:21 PM