I’ll try to make this short and sweet.
We got my wife a 2012 captiva since we had a new addition to the family.

timing chain and guides were replaced.
both actuators were replaced when we got the car

here recently I have been chasing this “injector 3 circuit open” issue.

about three weeks ago I pulled the fuel rail out. Went ahead and replaced #3 injector.
cleaned out the others. Reinstalled
also did four new spark plugs.

everything has been working fine until I drove it a little hard the other day. Service stabilitrak etc etc came on. Engine light flashing. Hooked my scanner back up and saw the injector 3 circuit code pop back up.

I have tried and tried and tried with this vehicle and tired of throwing parts at it.
ive read that it could possibly be a ground related issue.

when I pulled the entire fuel rail off I checked all plugs, checked all wires and checked for continuity.

I am completely lost here. And starting to wish we never got this car after everything I’ve read about them.

any help is appreciates

 

A little side note,
Checking wires and connections using resistance is not the best way to check them.
If one strand of wire is working it will read 0 resistance,,,,,,,,,,,,,,,,,,,,,,,,,,but will not carry the required current to ensure the component will work correctly.
If you are going to use a meter ,the better way is to do voltage drop testing. It may seem a little complicated, but there are several videos demonstrating the correct procedure.

 

what would be the best way to do that on this vehicle? I’m assuming probe the injector harness and monitor voltage readings?

 

Bump.

anyone have tips for doing a voltage drop test?
p0203 came up again tonight. Am I able to probe the connector on top of the intake manifold while the car is running?