2012 Nissan Juke - codes after valve cover gasket replacement

[svtrit]

I replaced a leaky valve cover on a 2012 Nissan Juke yesturday. After completing the job, the car had the service engine soon light pop on.

P1550- Bat Current sensor
P0045- TC Boost Sol/V
B263- Sunload Sensor (Google adds a 1 to the code, but my Nissan scanner does not)

These codes seem odd from a valve cover gasket replacement. What are some thoughts on fixing these? I did check connections of all the electrical items I had to remove and they were good. I will clean the battery posts later today to see if that helps. The HVAC one (sunload sensor) is the one that drives me nuts, as that has nothing to do with the work I did.

I did find oil in the inter cooler pipes which has me concerned about the health of the turbo.

I fix cars for people who don’t have the money to do so and am very worried that the codes would cause the owner to not be able to get to work if they lead to a problem I may have caused. We (the ministry that does this work) don’t charge anything for the work and are all shade tree mechanics doing our best. The owner is being very patient, and when I told her there is not charge for any of the repairs I did (Ball joint, gasket, oil change) she was thrilled, which is helping with her patience.

 

[researcher]

I know this is captain obvious sort of thing, but did you disconnect any of the harness that is connected to these sensors? Nissan's are odd, I remember how odd codes showed up on my friend's Rogue when all I did was replace the battery! I ended up clearing the codes, nothing ever came back.

I'd probably reset the codes and see if they come back. My friend's Rogue was a 2013, something odd about those years with Nissan, then again that was the height of their bean counting!

 

[Nukeman7]

You indicated that the Service Engine Soon (i.e., routine maintenance) light came on...this is a reminder typically based on mileage and is unrelated to an actual Check Engine Light (CEL) where a trouble code(s) has been detected.

It is possible the three CEL codes you found by scanning the PCM could be related to disconnecting the battery or interrupting part of the wiring harness when removing the valve cover on the Nissan. The Sun Load sensor code may be an old historical code that was recorded much earlier and unrelated to your recent repair.

In any event, I would follow @researcher's suggestion and clear all codes, drive the Juke and see if any codes return.

 

[ecotourist]

I'd check all the vacuum (and wiring) connections. Could have missed one or even cracked a small hose.

Then clear the codes and see what happens.

 

[Danno]

Clear the codes. Changing out batteries on our lot, CEL comes up quite often. I use my $25 Amazon code reader, clear the codes, gtg.

 

[svtrit]

I'd check all the vacuum (and wiring) connections. Could have missed one or even cracked a small hose.

Then clear the codes and see what happens.

Winner….I didn’t hook up the turbo solenoid. I cleaned the terminals, hooked that up, and all is well. Thanks!

 

[ecotourist]

Winner….I didn’t hook up the turbo solenoid. I cleaned the terminals, hooked that up, and all is well. Thanks!

Glad to help.

Having just replaced the valve cover gasket on my Honda Accord V6, I know how many wiring connections and hoses there were. Missing one would have been easy.