what causes stomp and bog when engine is cold? 93XJS4L
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#7
When cold the engine needs to draw more fuel, so if fuel pressure is OK as it seems to be, the injector pulse is too short, indicating perhaps your engine temperature transmitter is not right.
The two biggest influences on fuel supply are (1) engine (coolant) temp and (2) mass air flow. As you don't get the problem when engine is hot indicates to me it is not a mass air flow measurement problem
The two biggest influences on fuel supply are (1) engine (coolant) temp and (2) mass air flow. As you don't get the problem when engine is hot indicates to me it is not a mass air flow measurement problem
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