986 Forum - The Community for Porsche Boxster & Cayman Owners - View Single Post

bagpiperse · 08-23-2018, 05:41 PM

Hi all,

I am brand new to this forum and a new, old Porsche owner. I have already learned alot from the forum. However, I need some help to get my 98 986 working.

The car came to me with the P0410 and P1411 codes. I tested the air injector motor and it works with power from the battery. I inspected and tested the 40a fuse and put a new relay in. I also inspected the wiring around these items and did not notice any obvious problems. I also checked the conductivity between the power wire from the relay to the pump and between the fuse and the relay. All of those connections appeared ok.

So, I am new to working on cars, but it looks like the relay is not sending power to the pump. I read somewhere that there is an engine sensor that somehow activates the relay through the ECU (??).

Can anyone guide me in how to solve the problem upstream. Of course, once the I get the pump running, there could be problems downstream, but I think that I can fix those based on my research and generous souls on the internet and youtube.

Thanks in advance.

08-23-2018, 05:41 PM	#11
bagpiperse Registered User Join Date: Aug 2018 Location: Albuquerque Posts: 8	Can I revive this post? re: p0410 and p1411 codes Hi all, I am brand new to this forum and a new, old Porsche owner. I have already learned alot from the forum. However, I need some help to get my 98 986 working. The car came to me with the P0410 and P1411 codes. I tested the air injector motor and it works with power from the battery. I inspected and tested the 40a fuse and put a new relay in. I also inspected the wiring around these items and did not notice any obvious problems. I also checked the conductivity between the power wire from the relay to the pump and between the fuse and the relay. All of those connections appeared ok. So, I am new to working on cars, but it looks like the relay is not sending power to the pump. I read somewhere that there is an engine sensor that somehow activates the relay through the ECU (??). Can anyone guide me in how to solve the problem upstream. Of course, once the I get the pump running, there could be problems downstream, but I think that I can fix those based on my research and generous souls on the internet and youtube. Thanks in advance.