355 M2.7 cutting , run on 6 or 8 cyl

Have you checked to make sure the problem isn't fuel related? Are your fuel pressure regulators okay?

 

My injectors are back today, all okay , tomorow i will check the o2 sensore and I must find someone having the tool to test the presure regulator (presure indicator)...
another step tomorow ! after so much hours on it !
thanks for help
nico

 

checked today the thermocouple ohm resistor seam to be ok, ohm increse withe cat temp.
O2 sensor have from 0.1 to 06 volt on left on grey and black wire.
O2 sensor have from 0.1 to 1,1 volt on right on grey and black wire.
I will try to find a mecanic to check fuel presure.
bye

 

I found the problem:
I tested my plug wires putting a plug on it and looking for fire on it.
all clylinders seamed ok
I changed plug wires but thoses I bought were not good
I tested the ohm resistor of each plug wire and 2 where cut intoo the plug cap.So when i tested each plug wire with a rev metter it seamed ok but finaly the problem was not the wire but the plug cap...So much work for it !
changed for OE products and now the car is ok...
I found too whater intoo the head around the plug for cyl 5 and 6 and it was thos that shut down.So I think having whater here can destroy the plug cap (And I have the good seals but...)
Thanks for so mny answers to my questions.
Bye
nico

 

Thanks for the update Nico.

 

Sweet.

 

Sometimes the O2 sensor will get a buildup on it. Cleaning it by wiping it off with brake cleaner can improve its performance and save you the costly replacement.

 

It's a 355 boys, CHECK CYLINDER LEAK DOWN.

 

I like that idea, though how do you identify which cylinder is bad?

Great job!!!

 

I found the the cylinders fault looking the ohm resistor of each wire , 2 where cut...