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P0202 Fault on 2013 Lincoln MKT 3.5L Turbo V6 - How to Diagnose Injector Circuit Malfunction

Model: MKT Fault Code: P0202 Posted: 2015-04-03 09:27

I'm experiencing a persistent P0202 fault on my 2013 Lincoln MKT with the 3.5L turbo V6 engine. I've already replaced all injectors, checked wiring harnesses, and tested each injector's resistance—reading consistently between 2.3 and 2.4 ohms across both banks. All wire connections appear intact, and no visible damage is present. The code persists despite these efforts. My next step is to determine whether the issue lies in the injector itself or with the Powertrain Control Module (PCM). I'm particularly concerned about whether the PCM is properly triggering the #2 cylinder injector. How can I verify if the PCM is sending a signal to Injector 2? What's the best way to test this without specialized equipment? I'd also like to know where the PCM is located in the vehicle—some sources suggest it's under the dashboard, not in the engine bay. If confirmed, I may need to send it for diagnosis or replace it. Can anyone provide guidance on using a NOID light to test injector activation? Or recommend a reliable DIY method (like swapping injectors) to isolate the fault? Email: hector.henriquez@aol.com

Related fault codes
P0202
Comments (11)
Anonymous 2015-04-03 09:28

This is specifically a 2013 Lincoln MKT with a 3.5L turbo V6 engine—confirming the model and configuration for accurate troubleshooting.

Anonymous 2015-04-03 09:57

P0202 indicates an 'Injector Circuit Malfunction' on cylinder #2—this keyword is critical. Use a NOID light to test if Injector #2 is receiving proper signal. This is a quick and effective diagnostic step. Also, confirm the location of Cylinder #2 on this vehicle for clarity.

Anonymous 2015-04-03 10:08

Cylinder #2 is located on the rear side of the engine block, near the body side.

Anonymous 2015-04-03 13:32

Confirmed: Cylinder #2 is in the rear bank, center position. A swap test with a known-good injector from another cylinder could help isolate whether the issue is with the injector or the PCM—though this requires more effort than a NOID light test.

Anonymous 2015-04-03 18:39

I replaced all injectors, and the P0202 code remains. I measured resistance from each injector via the harness—consistent at 2.3–2.4 ohms across both banks. I will tomorrow check for signal from the PCM side of the harness to ensure proper communication.

Anonymous 2015-04-04 08:06

Before investigating wiring or the PCM, consider a simple and affordable NOID light test (around $20). It can quickly confirm whether Injector #2 is being activated by the PCM.

Anonymous 2015-04-05 07:46

I'll perform the NOID light test as recommended.

Anonymous 2015-04-06 08:38

I've also inspected the injection harness and confirmed all connections are secure. I’ve tested point-to-point continuity, which shows no issues. At this stage, it's possible the issue lies with the ECM/PCM. Where is the PCM located in the vehicle? Is it under the dash or in the engine bay? If it’s under the dashboard, I may need to send it to a Ford service center or replace it.

Anonymous 2015-04-06 09:56

I’ve now found the location of the PCM—confirmed under the driver's side dash panel.

Anonymous 2015-04-07 17:18

Next step: I will have the ECM/PCM inspected by a Ford technician to rule out internal failure.

Anonymous 2015-04-08 08:23

If you don’t know where the PCM is located, how did you perform your point-to-point check? Did you use a NOID light or another diagnostic tool?