elgirafe Posted June 30, 2014 Share Posted June 30, 2014 New user here. I have been lurking on the forum for months now trying to figure my issue out. I have a 1996 2.2 Legacy in a 1987 Syncro Vanagon. My family and I took it 17,000 miles across the country with no issues whatsoever. The engine is strong. Back in March we were headed to Sedona from Phoenix and felt the "fishbite": A one time sudden buck/hesitation/loss of power/misfire. Since then it has gotten progressively worse and I am about to commit myself to the ward... Description of events: - Start van cold. Idle goes up to 2000 and settles down to about 700. Pretty normal. - Drive the van on my test loop in Durango (6500 ft). We get up to operating temperature maybe a bit hotter. In my case 179 is average. Once we start heading up a slight hill at 60-65mph it will happen once. The fishbite/hesitation/stutter/misfire. NO CODES. - From this point it will wildly buck at 3500rpm in 3rd gear, and between 2500 and 3500 rpm in 2nd/3rd. It rarely does it in 4th at lower rpms. Power loss. Never a corresponding drop in RPMs - If I stop the idle goes right down to 700 but will vary and is rough ~100rpms above and below. - Seems to do it most on hills, high torque/load situations. after warming up - No loss of RPMS. I know throwing sensors at the problem is the wrong way to go about it, but literally every symptom of a sesnor going bad were my symptoms. I have done the following: Fuel new fuel pump new fuel filter swapped fuel pressure regulator cleaned injectors professionally ethanol free fuel checked fuel pressure new EGR Air cleaned air filter new MAF new cat and muffler - needed anyway new exhaust header - needed anyway new IAC swapped TPS cleaned throttle body New PCV Ignition new plugs 2x platinum bosch gapped to .044 new wires - probably could have gotten better wires swapped ignition coil and put a new one on swapped ignitor swapped ignition relay sensor/computer swapped ecu 2 new OEM bosch o2 sensors new cam position sensor new crankshaft angle/position sensor new knock sensor new MAF new coolant temp sensor checked compression check all vacuum hoses I am seriously at the end of my options other than tearing it all the way down and looking at every wire of the wiring harness. Unless some of you wonderful people have some bright ideas. Im out of them. Thanks for you help. Marc Link to comment Share on other sites More sharing options...
OttMattSens Posted June 30, 2014 Share Posted June 30, 2014 I had the exact same problem, and im confident it could be your problem too. Take off your timing covers and check the timing marks, mine is a manual and it was missing that timing guide that goes above the crank gear. that was causing it to skip only on the crank gear when shifting. please get back to me as you are having the same problems I did. Link to comment Share on other sites More sharing options...
elgirafe Posted June 30, 2014 Author Share Posted June 30, 2014 Thanks OttManSens I will check that out as soon as I can find a way to get my timing cover off. Appreciate the idea! Link to comment Share on other sites More sharing options...
mnstrmech Posted June 30, 2014 Share Posted June 30, 2014 Ditch the retarded useless Bosch plugs...... Link to comment Share on other sites More sharing options...
elgirafe Posted July 1, 2014 Author Share Posted July 1, 2014 That makes sense. I probably should have known better. I'll be picking up NGK plugs and wires and see what that does. Can only go up from here. Link to comment Share on other sites More sharing options...
OttMattSens Posted July 1, 2014 Share Posted July 1, 2014 have you checked the timing yet.. Link to comment Share on other sites More sharing options...
elgirafe Posted July 2, 2014 Author Share Posted July 2, 2014 Nope. Haven't had time. Luckily I can ride my bike to work. Link to comment Share on other sites More sharing options...
CDNjdm96GTB Posted March 24, 2015 Share Posted March 24, 2015 any resolution? I'm having similar symptoms with my 96 JDM Legacy GT-b Link to comment Share on other sites More sharing options...
elgirafe Posted March 24, 2015 Author Share Posted March 24, 2015 It was my timing. Since the engine was non interference, the timing somehow skipped a tooth on both cams. It would only show its ugly head when we got into open loop. Link to comment Share on other sites More sharing options...
OttMattSens Posted March 24, 2015 Share Posted March 24, 2015 Called it! Link to comment Share on other sites More sharing options...
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