I only have the codes and the flashing CEL to let me know it's pissed off. There are no misfire counters or data PIDs to watch, so I can't graph the misfires and the engine data together. This would be a good place to graph Crank frequency, with a sync. Please Log in or Create an account to join the conversation. Service info says the counters are there, Snap-On says they aren't. I only ask because I'd still like to be able to watch misfire counters during a 1-2 or 2-3 run. While we're on the subject, has anyone tried FreeSSM? Freeware Subaru software. I also didn't think to compare the actual advance to the indicated advance on the scan tool. Ran out of time last week, but I want to revisit this. Saw very little at idle or during a snap. I added a spark tester and ignition probe on the #3 wire to check advance. Cranking and running compression looks good. Service advisor thought to check if the injector connectors had been reversed, and one bank was! Fixed it. Easy enough to do, and faster than a balance test. Moved injectors front to back, or 1 3 and 2 4. The secondary waveforms said I was wasting my time, but I felt the need to try it anyway. Noted the 3-4 coil had a slightly lower peak, especially during a WOT snap in Park. Both the Knocking Correction and Ignition Timing PIDs show more advance, but still runs the same way.Ĭhecked coil current ramps.
2006 subaru forester forum zip#
Reconnected the knock sensor, unbolted it from the block, bundled it up in a rag and zip tied it out of the way. Unplugged the knock sensor - instacode + runs like ass. I started working down the list of ideas we came up with during the last meetup. Sorry for the upload - Autel makes it very difficult to share waveforms. Intake pulses show two cylinders slightly worse than the others, but nothing huge. Before you ask, there are no misfire counters or data PIDs to watch, so I can't graph the misfires and the engine data together. I ran the MAF values through the ATG VE calculator and got 95% or better. Don't forget to hit 'Open PID List' to make stuff happen. Here's two scan data captures during test drives with the symptom present. I don't know if the two symptoms are related or not. It does not *feel* like a two cylinder miss during the WOT run. During a WOT 1-2 or 2-3 shift, it also sets P0303 and P0304 simultaneously, along with a flashing CEL. Once accelerating, it accelerates like you'd expect. From a stop under heavy throttle or WOT, there's a distinct hesitation to start accelerating. Speaking of symptoms, they're repeatable and specific.