Intermittent signal from Ecu to number 1 fuel injector. Makes rough running. Any ideas for troubleshooting?

Asked by ULLDAD27 May 06, 2018 at 02:41 PM about the 1997 Toyota Camry LE

Question type: Maintenance & Repair

Daughter's 97 Camry 2.2 liter runs rough.  Mechanic diagnosed as
intermittent loss of signal to number 1 fuel injector.  What do I look for to
remedy?

2 Answers
21,390

Tony answered 6 years ago

Possible bad connection at the injector....bad wiring from injector to ecu.....bad ecu. A Digital Volt Ohm meter is needed for diagnosis. An injector test light called a Noid light is also helpful. Both these items can be purchased at an Auto Pzrts Store for less than 50 bucks.

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