Ok so repaired ECU is no longer allowing vacuum to the EGR at idle, I pulled the codes again and got 12, 21 and 26. So I replaced the MAF with a spare one and still no change in the stumbling across the rpm range. Now I didn’t let the car warm up fully before I did the KOER test. But it’s important for me to note that I checked the oil level and it was way above the full mark....again. So I smelled the oil and it smelled like fuel. fuel is leaking into the oil pan...lots of it. I checked the FPR again, no fuel is in the vacuum line. It doesn’t even smell lime fuel. Fuel pressure is steady around 40 psi. i pulled the plugs and they were fouled with fuel. What the hell. It idles like it’s cammed
You got a 26 code for the MAF - did you do the test path that I posted for the 26 code? In are some simple checks with a good quality voltmeter to determine if the MAF output voltages are good.Ok so I put fresh plugs in, along with a new distributor, ignition switch, new coil. stabbed The distributor at 10 degrees. It fired up and sounded good, I was so happy. About 30 seconds later, it started sputtering then shut off. I pulled the plugs and they were fouled with fuel...wet. I’m am going to drain the oil because the level is pretty high from the fuel getting in the oil pan from it running so rich. I took the upper intake off to gain access to the injectors. fuel pressure is holding when the car is off, it takes about an hour or so for it to bleed off. None seem to be stuck open or leaking. Now earlier when I posted the codes, I pulled them when the engine was cold. It has new 02 sensors, new capacitors on the ECU. so at this point, Its Starting to become depressing.