1991 fuel injector problem
i have a 91 S-10 blazer with the 4.3 4x4 and im getting .12v to the driver side injector which just pumps fuel on top of/all over the NEW injector an im getting .00 .01v to the driverside injector which inst bringin any fuel through
any thought? or methods of fixing this |
Have you checked the wiring back to the ECU? Both should be getting the same signal. It is a PWM (pulse width modulated) signal so you really need a scope to see what it really is getting.
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ya all wires are fine none are pinched or cut so idk why the driver side injector and getting no power.
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How fast is your refresh rate on your DMM? Are you just not capturing the peaks when the pulse happens? Have you tested it with a noid light?
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Originally Posted by swartlkk
(Post 211961)
How fast is your refresh rate on your DMM? Are you just not capturing the peaks when the pulse happens? Have you tested it with a noid light?
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Was it a digital or analog volt meter. Reason I ask is because the IPW (injector pulse width) may only be a few milliseconds with a few milliseconds between pulses. A DMM with a low refresh rate may only see one part of the signal.
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its digital meter
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