[eff26]

The factory service manual states any time the ecm or a few other connections are diconnected you must do do the idle relearn. I disconnected the ecm to check wiring harness. The car has a strange idle after i done this thats why i need to do this becau

[eff26]

Thanks i will try that

[eff26]

! UPDATE !

I finally picked a factory service manual and followed the troubleshooting steps it provided for the PO350 code. Turns out I may have a broken wire somewhere in the main harness.the book asked me to check for continuity between the ecm harness connector and the coil terminals. Connectors 35,36,37,38 and connector 1 on each coil. I have no continuity on any of them and i should. So I am thinking the wire that send the signal back to the ecm which all four coils are connected to may be the problem. Which could explain the reason I have a random misfire on all cylinders and not one specific cylinder. I will ry and get to searching later this week and see what I come up with. Thank you everyone for your advise you have been really helpful. Now I just need to find that wire hopefully. I will update my progress when I find something.

thnaks
EFF26

[eff26]

How do I check the injectors ?

[eff26]

Today I checked the injectors with a stethascope and listened to them they all seem to be the same as far as sound/pulse when the car is running. I am starting to think this may be a computer problem. Does anyone know if any other model sentra’s computer will work because they are three different ones and I though maybe i could find one a check this.

[eff26]

I will check the fuel pressure but i don’t believe thats an issue. The car drive’s perfectly fine under all load conditions. I think the ecm may be causing the codes I’m getting. The car shows a code when it’s running fine. Also the the code symptoms says that’s a possible cause of one of my codes (PO350). I just need to find out how to check for bad ecm? I know each car has different ecm’s but is there any way to confirm other than try another ecm? Also if I had to buy one anyone have any suggestions where? I’m sure nissan wants an arm and leg.

[eff26]

The exact codes I am getting are PO300 and PO350

[eff26]

I have performed the power balance test and had no change in any of the cylinders. I forgot to mention I have also removed the fuel injectors and cleaned them.

[Author]

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