Not having much luck today. I did a few things in preparation for ignition:
- Replaced that coolant hose that was leaking with the correct sized hose. Of course, now there’s a pinhole leak in the hose to the hot water valve on the other side of the T that I have to fix...
- Lengthened the bank 1 injector wires so that I could run the harness around the throttle body instead of in front of it. The original routing was limited by wire length, and got very close to one of the coils, and wasn’t in the best location with regards to engine heat. In theory this will fix the sensor noise (or at least I can’t see what else would be the problem).
I cranked the car over, but it won’t catch. It just keeps cranking, occasionally firing some cylinders, occasionally backfiring out the throttle intake. TunerStudio shows it sometimes gets out of the cranking range, but almost immediately drops back down. It’s cranking fast enough to try to run (300-600 RPM range). The oil pressure is good as well. Ironically m, the AFR is sitting in the 14s after these tests, too.
I used a test light between each coil and spark plug, and it lit as expected for all cylinders. I also used TunerStudio test mode to make the injectors click on both banks, so I know they’re all working and I didn’t mess up the wiring. I have a fuel pressure gauge hooked up, and it shows proper pressures.
I did forget to re-connect the MAP hose briefly, but plugging that back in had no effect.
I’m stumped. Any idea what I should check next? I can record a video or grab TunerStudio logs of that would help.
Thanks!
— Joe