Please help. I've spent a fortune on repairs and parts, and the problems continue. I'd appreciate your experience on the forum. In the winter of 2023, I turned the car off and it wouldn't start. They tried to scan it and gave a "Link Connection Error." They told me I had to replace the ECU. Before installing the ECU, I had to buy a new battery. After installing the battery and ECU, the car started, but with some glitches, the car only had 98,685 miles. Throughout 2024, I replaced parts such as: 6 injectors, 6 coils, plumb gasket, 6 spark plugs, PVC valve, MAP sensor, camshaft sensor, intake temperature sensor, clean body throttle, replaced the 4 O2 sensors, and finally the EGR valve and EGR seal. And again in the winter of 2024, after refueling, the car wouldn't start. I took it home, they scanned it, and it showed no errors, but the service light was on. It's the only car I have, and it only has 100,000 miles. Could someone on the forum help me or guide me? I would be deeply grateful. Thank you.

 

if the check engine light is on there are codes you will need a professional scanner not a code reader.

 

My problem turned out to be a fuse box fault with solder joints drying out due to bad connections id advise lifting off the front fuse box and cleaning all connections then refit and repeat on the rear fuse box also recheck your o2 sensors as they can burn out quick if you don't replace with the proper ones as the cheaper ones just don't cut it hope this helps

 

Interesting,
I'm sorry for your misfortune I really am, I share your pain as I have a P2506 error and replacing parts hasn't helped.
But the last reply about dry solder joints gives me another area to explore in my search.

 

If that still doesn't help get back intouch