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Fuel pump problem-no three second prime or purge
#9
never condemn any ECU/PCM.
until you check its wiring for damage.
and check power pins. (power and ground) power is12v ground is 0vdc.
and CEL lamp actions.
and scan it. never skip this critical step.,. if the ECU can talk it tells you things are wrong, listen to it. (TPS errors DTC )?
and TPS voltage on pin 3 seen here.
http://www.fixkick.com/IDLE-AIR/dutycycl...ml#16vduty

pin 3 is 1vdc. key on, not near 4v or 5.
1volt means throttle angle is zero .
pin 1 TPS, if that wire breaks, the ECU sees that as endless, unflood mode and injection stops and even the pump goes off line. but injections END NOW.
http://www.fixkick.com
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RE: Fuel pump problem-no three second prime or purge - by fixkick - 11-17-2018, 09:09 PM

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