P0152/P0132 codes even after replacing LOT$ of parts...getting frustrated.

Matt have you removed the plugs and examined the wires inch by inch to ensure you don't have a short?

 

Could also be fuel starvation due to old pumps. Have seen it v often on Ferraris / My car used to backfire every now and again. Finally both pumps died. I feel they have a limited life span specially if not used v often. Could cause rough running. Did you also swap Mass airflow meters?

 

The fuel pumps have rubber housings that perish overtime and the gunk accumulates in the base. Starts with erratic fuel supply and if the car is unused for an extended period you will get a fuel tank with deep yellow petrol due to scaling. Its happened to my 550 Maranello, F360, Maserati3200 and Maserati4200. All similar pumps. Just remove the check nut from below the car nd take a sample of about 1 litre petrol and see its colour. If its not transparent or blue , may as well clean the tanks . I paid around USD 600 for 2 NEW pumps for my car.

You mentioned O2 sensors . How about the more common issue of the Exhaust ECU's. Their Green insulation cracks over time and they have a high failure rate, Same ones as in F355, 550 F50 etc. I remember doing a full replacement in my car with the Thermocouples, sensors and ECU stations for a 550 Maranello.

 

Just saw your post again and you said car is running fine. So doubt if its fuel related.

 

From what you say, car is running fine. So the codes you get are only academic then. Wonder if its because you are not using a SD2 Diagnostic tool?

 

The fuel rail has a psi test port. A test is easy to do if you have the kit. IIRC you will see about 45-50 psi on the gauge if your pumps are fine.

 

Very unlikely. I use a generic ELM 327 scan tool and have always received accurate P-code diagnostics on my previous F355 Spider and my current 430 Scuderia.

Can we assume the OP tried swapping O2 sensors left to right to see if the problem moved? I would also inspect the pins on both plugs to ensure they are secure and not backing out when the plugs are connected.

Also, have you confirmed the sensors are the correct type and part number, and are installed in the correct positions (not swapped with front in the rear position and vice versa)?

 

My guess as above is either wrong sensor or wrong position swapped to front by accident.

If the plugs reach unplug rear and plug into front. Maybe the sensors are correct just plugged into wrong wires going to the ecu

 

I m missing something, what car model do you have?

 

There is no way to get the o2 sensors mixed up in a 360. The front is wide band 6 wires, the rear is 4 wires.

 

So to be clear, you have verified the part numbers on the O2 sensors are correct?? There is a notorious problem with the Bosch parts look up for F355s. Bosch has the wrong part numbers listed, causing many folks to install the incorrect O2 sensors and get CE lights. I doubt the book is in error for F360s, but you have physically confirmed the part numbers on your O2 sensors are correct? Have you tried swapping them left to right sides? Just to see if the problem moves or stays

 

As Mitchell said they dont plug in
I did not realize they were diff
Thanks Mitchell