no injector pulse please help
07-20-2011, 07:11 PM
#1
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no injector pulse please help would your opti system not let your injectors pulse back and forth when your testing them
Last edited by dagridiron01; 07-20-2011 at 07:50 PM.
07-21-2011, 05:15 PM
#6
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07-21-2011, 05:29 PM
#7
On my 95 a bad ICM will cause the PCM to stop the injectors. Throwing an Opti at it is not the way to troubleshoot.
I should start a thread on how to troubleshoot an Opti. All one needs is a decent voltmeter and a logic probe. Easy test.
Al
My left lug bolt stripped and I changed the Opti and it's STILL stripped! WTF!!
I should start a thread on how to troubleshoot an Opti. All one needs is a decent voltmeter and a logic probe. Easy test.
Al
My left lug bolt stripped and I changed the Opti and it's STILL stripped! WTF!!
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07-21-2011, 10:09 PM
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just ran some test on the opti spark connector c140 pin c (red wire) is getting power with the ignition on thats good.tested pin a red and black wire for 5v it was there.then tested pin d pink and black wire for a ground.so that has to mean the opti is bad rite?
07-22-2011, 01:11 AM
#10
Here is a diagram of the connector. Notice two wires should have pulses, PPL WHT and RED BLK.
You need something like this:
http://cgi.ebay.com/DTL-TTL-Cmos-Log...item3cb9f802e1
It will in a second tell you if the pulses are there are not. A better tool would be a lab scope, but if the pulses are there they most likely are correct. Did you check for trouble codes in the PCM?
Al 95 Z28
07-23-2011, 12:08 PM
#11
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No sir i did not check the trouble codes and i was going to do that later to day when i test for a ground on the opti sark harness something starts to hum like the fuel or some thing wat i kno for a fact its some with those injectors idk next tho i will test the pcm wire to c if they are doing any thing dont want to change that damn opti i have one off an old motor but just dnt think it worth a damnn
