Timing marks aligned perfectly. All electrical connections good. No codes. Compression good 185,175,175,180. Runs like a coolant temp sensor bad. Dies after warm up. Can some body help?
Vacuum leaks are common at idle. Sounds like a component is gittn hott from wear. If sensor was bad csr wudnt warm. Du a datastream to pinpoint area. Private shops have factoryscanners. Code readrs at parts store wont du it
Corrosion in electrical connections causes some bad behaviors. Usually there is a critical temp sensor that provides block temp information to the ECU. It usually has a two or three wire connection to the sensor. And a difficult to remove connector. My 20yr old (other make) gave me a bout of teriable starting when cold. I found this "special sensor" (some people say the sensor needs to be changed. I found that cleaning to bright metal provided the needed almost like new start without needing to replace the sensor. On mine there is a second "simple" temp sensor one wire to the dashboard temp display. Hope this helps.
If it warms up and dies, i would check the 02 sensor because the ignition dosnt go into closed loop until it warms a little
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