Nissan Repair Questions? Ask a Mechanic for Answers ASAP
Just power loss and sometimes wen i start her up she makes i stalling. Sound
Thanks, ***** ***** that you have a loss of power accompanied by what seemed to previously have been a catalyst and lambda code, tells us that the fuel trims are off. They were likely causing the other fault codes as well which led to the unnecessary repairs.
Most of the time when we see fuel trim issues on these cars its from either the mass air flow meter or from the fuel pump suction valve.
To monitor fuel trims and check MAF operation you simply need to look at live data and monitor the fuel corrections. You can then depending on the readings unplug the MAF and determine from fail safe if an air leak is present or just the MAF is operating poorly.
The suction valve has a duty cylce you can watch as you increase RPM's, erratic duty cycles at idle is another indication of a fauly valve.
Sorry i not really sure what that means. What part in your opinion should i get fixed? Would fixing this be a big job
Neither of these Jobs are really big jobs, but the Mass air sensor is a bit pricey, so you want to check fuel trims to diagnose the sensor before you replace it.
I deally you would be looking at paying about 1 hour labor to diagnose it at a garage. Then depending on whcih one was at fault you expect to pay another 2-5 hundred for the repairs.