Engine will not idle on its own?

Tiny
HOLY LOBSTER
  • MEMBER
  • 1999 ISUZU RODEO
  • 3.2L
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 135,000 MILES
My vehicle has good compression on all 6 cylinders. However, the three passenger side cylinders have no sign of combustion. Replaced fuel filters as well as rails and injectors. IAC valve. TPS, MAF, I'm replacing crankshaft position sensor tomorrow. Help, I'm stumped.
Wednesday, January 8th, 2025 AT 7:31 PM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 49,970 POSTS
Are the fuel injectors getting a trigger signal from the ECM? Also, with the key on there should be 12 volts at one of the wires to each of the injectors, they use a ground to close the circuit form the PCM.

Here is a guide that can help you test what I am talking about:

https://www.2carpros.com/articles/how-to-test-a-fuel-injector

Please go over this guide and get back to us.
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Thursday, January 9th, 2025 AT 11:39 AM

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