420A Code P0204

[aaronderise]

I have an open circuit cylinder 4 code and I’m not sure how to fix it. The harness is fine and the injectors are all referbished new with the same voltage and continuity. The connector however doesn’t have continuity on the injector 4 wire from the power

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pin in the connector. I checked for continuity tuning fro the wire in the connector to it’s pin in the ecu and there are no breaks and it’s fine. I don’t know the next step I need to take. All other 3 wires have a continuity of around .604

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[luv2rallye]

I have an open circuit cylinder 4 code and I’m not sure how to fix it. The harness is fine and the injectors are all referbished new with the same voltage and continuity. The connector however doesn’t have continuity on the injector 4 wire from the power pin in the connector. I checked for continuity tuning fro the wire in the connector to it’s pin in the ecu and there are no breaks and it’s fine. I don’t know the next step I need to take. All other 3 wires have a continuity of around .604

First what year and model do you have? Turbo or NT? We can't help you without knowing this.

Then you say "The connector however doesn’t have continuity on the injector 4 wire from the power pin in the connector". From what power pin in what connector to where?

Do you have a 2g turbo and are talking about injector 4's green wire to it's current limiting resistor or where???

 

[steve]

From his "About" and where this was posted it's a 420A.

We shouldn't have to ask or go looking for that critical information. The onus is on the poster.

 

[luv2rallye]

Ah yes, senior moment, sorry.
So on the 2gNT injector 4's light-green/red wire (control signal) goes to PCM (aka ECU) pin 16. It's larger black/red wire (power), along with the other injectors black/red, goes to pin 5 of the A-74 connector, and then on to pin 15 of the A-82 jumper connector, and to the ASD relay.