Since it has a distributer cap does it matter where the wires are connected to injectors?

Tiny
DONN-1
  • MEMBER
  • 1991 DODGE RAM
  • 2.4L
  • 4 CYL
  • 4WD
  • AUTOMATIC
  • 100 MILES
4G64 engine. Some how when the head was taken off truck, the injector wires were not marked. How would I find the right injector connections?
Thanks, Donn1
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Friday, November 20th, 2020 AT 5:54 PM

5 Replies

Tiny
JACOBANDNICKOLAS
  • EXPERT
Hi,

Both the spark plug wires need to be properly connected and so do the fuel injectors.

I need to know the correct engine size. Also, let me know if it is a full-size truck. They never put a 4 cylinder in the full-size trucks.

If you look at pic 1, it shows the engines available in the full size. If it is a Dakota, then it can have a 2.5L 4 cylinder engine. See pic 2.

Please confirm.

Let me know.
Joe
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Friday, November 20th, 2020 AT 7:20 PM
Tiny
DONN-1
  • MEMBER
It is a 2.4, 4 cylinder engine in a Power Ram D50 small pickup. We removed the engine for re-building and did not mark the wires for the fuel injectors. I looked at the connect sockets for a number, but did not see one. How can I tell which socket goes to which injector? Could I hook a 12vdc test light to each injector socket in turn, with battery hooked up and on, hand turn the engine and observe which cylinder the rotor button is pointing to, or is there another way? Thanks, donn1
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Saturday, November 21st, 2020 AT 5:32 AM
Tiny
JACOBANDNICKOLAS
  • EXPERT
Hi,

No problem. I attached a portion of the wiring schematic. It shows wire colors for each injector based on cylinder.

Let me know if this helps.

Joe
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Saturday, November 21st, 2020 AT 8:41 PM
Tiny
DONN-1
  • MEMBER
Thanks for pointing the way to wire up theses injectors. Donn1
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Sunday, November 22nd, 2020 AT 5:09 PM
Tiny
JACOBANDNICKOLAS
  • EXPERT
Hi,

Happy to help. I hope it works for you. Let me know if you have other questions or need help.

Take care,
Joe
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Sunday, November 22nd, 2020 AT 8:11 PM

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