BIKERSKIBUM Posted February 18, 2022 Share Posted February 18, 2022 99 legacy gt wagon - manual originally in to replace head gaskets heads rebuilt and head gaskets replaced new plugs and wires — new timing belt and water pump picked car up and was still misfiring starting with #2 and eventually misfiring on all cylinders new egr valve — new ignition control module (twice) still misfired all cylinders after 5 returns to first shop, took to another shop (subie dealer) valves adjusted to spec - way out at previous shop compression test 90% - leakdown ok FLOW ON INJECTORS OK PER DEALER got car back - drove 800 miles all good today per scan tool now misfire on #4 (highway speed) had flashing cel for 5 seconds - now on solid car tends to sit for months without running (i have 2 addresses) latest misfire in single digit temps with 4 month old gas no power loss - no overheating any ideas? Link to comment Share on other sites More sharing options...
whitexc Posted February 18, 2022 Share Posted February 18, 2022 Run the fuel out, get some fresh and start using some sort of stabilizer in the fuel during the long periods of down time. That's a start. Sent from my SM-G996U using Tapatalk Link to comment Share on other sites More sharing options...
BIKERSKIBUM Posted February 18, 2022 Author Share Posted February 18, 2022 Use Stabil every fill up, but yes, freshening fuel my next step before next high speed test. Thanks. Link to comment Share on other sites More sharing options...
silverton Posted February 18, 2022 Share Posted February 18, 2022 car tends to sit for months without running (i have 2 addresses) cars dont like this, unless you can keep it inside. Have you replaced the coil pack, or at least tested it? you say ignition control module, is that a tomato tuhmahtoe situation? Link to comment Share on other sites More sharing options...
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