I’ll make this as abridged as possible. Basically:
Three weeks ago my 2001 Subaru Legacy Outback was intermittent no start. It cranked weakly, with rumbles and shudders before it died unless I teased the gas pedal just as it tried to turn over. Sounded like a fuel issue.
We looked for issues and attached a missing ground strap. We also cleaned around the grounds and reset the timing. It started and ran beautifully.
But then I got it home and the next morning it ran okay. Still rough start. But at least it was starting and running for a few weeks. It started blowing coolant so we pulled motor for HG job. Had no spark after re-install.
If we put the test light + to the coil power and test light - to the Bank 1 trigger, the LED lights up til you start cranking, then shuts off for the duration of the cranking and then times for 1.5 sec’s after the Crank, and lights back up steady. (It coincides with the CEL being lit on the cluster). If we probe the - to the Bank 2 trigger, it’s just lit continuously whether cranking or not.
We resistance tested both Crank and Cam sensors and they are w/in spec. We pinned out the wires thru the harness to the ECU, and they test out.
The dang thing then signalled the coil so we plugged it in and it ran for 15 sec’s including idling and revs… So we installed accessories and then it once again had no spark. We blamed the ignition switch…it WAS notchy, but we cleaned it up inside and it now tests reliable during ‘on’ and ‘crank’ cycles.
We swapped the ECU and nothing was solved. It just cranks. I’m at a loss. Scanner isn’t throwing any codes. What’s going on?