Hello everyone.
Thank you in advance for helpers. I need a different perspective and comment
My Problem(Now)
Always blinking engine light -All time fault 4-cylinder misfire
Sometimes feel misfire (I don?t know what but Like some cylinder ignition off or some cylinder fuel cut)
Usually, I feel is normal with blinking engine light.
A short video for this problem.
https://youtu.be/Y0CLHHAc2u0
Torque Log Video
https://www.youtube.com/watch?v=pn1Y1qbs3EE
I have hptuners logs if necessary I can send.
Fault Codes
What did we try?
-Oem Tune File installed
-Different ignition coil tried
-Different spark plug tried
-Fuel tank pump pressure test
-Different HPFP Tried
-Comp Test (All cylinder is the same value)
-Harness Test
-Tired without MAF sensor, İntake manifold valve, o2 sensor
etc.?
-Crankshaft sensor changed
Fault process from the past
I saw seldom it blinking 1-time engine light. Then I check fault code ?random multiple misfires? 4-cylinder misfire?. I Not feel anything and not have a problem
For solve change ignition coil and spark plug. But it continues. 2 years lasted. We did not find anything. I continued to drive because it did not cause any problems
Soon
I have a downpipe and exhaust, for this, we made an ECU tune 2 weeks before, the day has not any problem. When I start the engine on the day after, Following the cold start my engine light blinking (4-cylinder misfire) But not feel anything (vibration or run problem). On that day I see sometimes stop blinking light then start blinking.
Please write your comments and advice.