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Intermittent Poor Running
This is regarding a MY91 engine transplant. Problem started occurring maybe once every 4-6 months but has gotten progressively worse. Would randomly start running extremely poorly with an occasional backfire on decel. Sometimes right at startup and other times a fully warmed engine. If I let it sit for a few hours it would self-correct and run perfectly again. Recently took a turn for the worse so it's parked now.
Checked a number of things including the AFM, CHT sensor, Ignition Coils, DME relay and the OX sensor was replaced 2 years ago. The spec for the speed reference sensor is 960 +/- 96 ohms. My reading is 577 between pins 1 and 2. No reading between Pins 1 and 3 as well as 2 and 3. This doesn't seem right? This thing looks like a real PIA to change out so want to make sure. Thanks,
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Walt 82SC 3.0 81SC 3.6 Last edited by walt; 09-09-2025 at 09:14 AM.. |
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09-08-2025, 05:04 PM
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