injectors not pulsing
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Joined: Aug 2001
Posts: 287
From: jacksonville, fl usa
injectors not pulsing
posting this for a friend with a 95 Z28...
he tested his injectors last night and found 3 of them are getting no pulse. what can cause this? where should he go from here to fix the problem?
he tested his injectors last night and found 3 of them are getting no pulse. what can cause this? where should he go from here to fix the problem?
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Joined: Nov 1998
Posts: 71,109
From: Hell was full so they sent me to NJ
Did he verify that he has +12V to the pink wire on each injector connector, when the key is "on"? There are 2 fuses that each supply +12V to 4 injectors. The PCM simply supplies the "ground" to complete the circuit and pulse the injector. If its got +12V, then he needs to check the resistance on each injector.... 12-15 ohms. If he's got good injectors, it will then point to a problem with the drivers in the PCM.
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autoxr166
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Sep 25, 2015 04:21 PM