P0303

[Dougvzla]

Hi Guys,

Yesterday I decided to do some maintenance on my H3. I did the Throttle body and MAF Sensor cleaning and decided to change spark plugs as well. I did noticed that the coil of the first spark plug had some rust and decided to change it. In the store they didn't have the same one that was installed (Delphi) and I bought one from BWD.

I checked all spark plugs again and all the coils but I'm getting this error now. First stupid question (I was looking everywhere with no luck) is what is the cilinder order in the H3 engine. Which one is number 3 ?. I assume is the one in the middle but I want to be sure before I start changing parts.

Thanks for your help

 

[Best4x4]

Yep she's in the middle, pull the plug, check to make sure the boot/spring inside is seated good and that's grabbing the plug good. If not u can buy a new boot/spring.

 

[Dougvzla]

I checked boot and spring and everything was ok. To make sure the problem was not the Coil assembly I swap Coil from cylinder 2 and 3 and nothing changed. Only thing left to try was the just replaced new Spark plug. Took out new spark plug and put the old one in and tried again. Found the problem was the new spark plug that wasn't working at all.

Thanks for the information because I wasn't sure about which one was cylinder #3

 

[Best4x4]

No problem