POLO 2011 VIVO 1400 – DIAGNOSE CODES P0302 AND P0300

This car problem was that the engine idles roughly and it performs very badly, goes in limb mode. I have pulled codes from the ECU and got the following:

Cylinder 2 P0302 – 000 – Misfire Detected – Intermittent Freeze Frame: Fault Status: 00100000 Fault Priority: 2 Fault Frequency: 2 Reset counter: 6 time Indication: 0 Freeze Frame: Bin. Bits: 00000100 Load: 100.0 % Lambda: 0.0 % Speed: 60.0 km/h Temperature: 46.0°C Absolute Pres.: 796.3 mbar RPM: 2250 /min 16684 – Random/Multiple Cylinder Misfire Detected P0300 – 000 – – Intermittent Freeze Frame: Fault Status: 00100000 Fault Priority: 1 Fault Frequency: 1 Reset counter: 7 Time Indication: 0 Now this could be as follows: 1.Plug dead at no 2 piston 2.Ignition coil faulty Piston 2 3.Injector no 2 – faulty.

I have remove the plug from no 2 and it is completely black, not wet black but pitch black, this indicates that this piston is over fueling. I have done a coil test and it test fine. Now to enable me to really pin point the problem. I have change injector 2 with no 4 and ask the customer to bring the car back after a day or so. After customer brought back the car with same problems I have pulled codes from the ECU again and just look at the results [b]16688 – Cylinder 4 [/b]  P0304 – 000 – Misfire Detected – Intermittent  Freeze Frame: Fault Status: 00100000

Fault Priority: 2

Fault Frequency: 28

Reset counter: 0

Time Indication: 0

Freeze Frame:

Bin. Bits: 00000100

Load: 100.0 %

Lambda: 0.0 %

Speed: 64.0 km/h

Temperature: 86.0°C

Absolute Pres.: 795.6 mbar

RPM: 3556 /min Now the problem is at no 4 piston, this definitely indicates the injector is faulty. Hopes this helps.

Updated: 20th Jul 2019 — 9:38 am

Leave a Reply