injectors not firing due to ????? opti???
#1
TECH Apprentice
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injectors not firing due to ????? opti???
My car ran great, all the sudden started missing real bad so I pulled it in my shop shut it off and had code 16. reset the code and it would not start. pulled the delphi opti with 2k miles. installed a autozone reman that I've got a lifetime warranty on. hooked all up still no start. I've got spark to my plugs, and I'm getting the 4v to the white wire on my icm. also swapped icm and coil(spare). the opti harness tests out ok but my injectors are not getting any pulse. could I have gotten a bad opti or indexed it wrong????????? maybee my ignition? it was acting funny a couple weeks ago any ideas????
#4
On The Tree
Join Date: Sep 2010
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Are you getting pulse from any injectors? They run on two fuses as I found out. If it is the opti it should be easy to see if you unplug the harness to the opti you can plug it into another opti then you can turn it by hand you will hear the injectors pulse. You just need to have the car in the on position. You may also want to check the fuel pressure!
#6
TECH Apprentice
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I've checked the fuses, I did not find any bad ones but I'll check again. It seems my injectors fire one cycle then are cut off. I've done the test for the opti I'm wondering if my ignition lock is bad, I did just install a shift light and was messing around the column
#7
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I had a similar issue in my 96 formula. To this day I don't know what the problem is (probably alarm/bcm related). I bypassed it by hard-wiring the injectors to a key-on power source. Been dailying the car ever since
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#11
Staging Lane
Join Date: Oct 2010
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This is weird? My buddys 95 z yesterday had the same problem i unpluged the car alarm the basterd started? Weird huh? His injectors was worken the car would turn over and over until almost drain battery! So i was thinkin the car is fireing but not getting fuel? So i unpluged car alarm it fired? Mite give u something else to look at bro?