Injectors

2001 FORD RANGER
165,000 MILES • 2.5L • 4 CYL • 2WD • MANUAL
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RICHARD LODGE
  • MEMBER
  • 2 POSTS
All injectors pulsing at same time on every stroke together. New, TBS, oxys, idle sensor, coil pack, fuel pump. Timing on marks, no catalytic exhaust, reset computer, heavy backfires intake and exhaust.
Oct 13, 2018 at 6:03 AM
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ASEMASTER6371
  • ✓Experienced Mechanic
  • 52,796 POSTS
Good afternoon.

The injectors should only fire when the cylinder is at top dead center compression.

It takes the signal for the crank sensor. If your sensor is damage, that could cause it.

If that is working correctly, then the PCM is the issue. It should not fire them all at the same time.

Roy
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Oct 13, 2018 at 6:33 AM
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