Getting misfire code after changing FPS
Thread Starter
Rookie
Joined: May 2011
Posts: 84
Likes: 2
From: Hawaii
Getting misfire code after changing FPS
Greetings, so my car was been down for a while and finally got my new Fuel pressure sensor and replaced it started up and drove it about 15miles with no problem or anything.
Then suddenly my check engine light started flashing with my traction control came up. Then my car wouldn't go faster than 20mph when putting the pedal to the metal.
Got home and pulled a P0304 code. Misfire in 4th cylinder.
going to try and swap my ignition coils and see if the code changes tomw. Pretty easy but any thing else is should test to try zero in on what needs to be fixed? Possibly spark plugs after checking coils?
Then suddenly my check engine light started flashing with my traction control came up. Then my car wouldn't go faster than 20mph when putting the pedal to the metal.
Got home and pulled a P0304 code. Misfire in 4th cylinder.
going to try and swap my ignition coils and see if the code changes tomw. Pretty easy but any thing else is should test to try zero in on what needs to be fixed? Possibly spark plugs after checking coils?
Rookie
Joined: Nov 2016
Posts: 88
Likes: 11
From: CA
You know what you are doing. Swapping the coil paks is a good idea. If that doesnt fix it then check the plug, you might want to just buy 1 plug while you are there and put it in. I did a spark plug change on my moms Murano and dropped a plug on the ground before installing it. It looked fine so I put it in then it started misfiring. The ceramic on the plug was loose from the fall but you couldnt see it until you rocked the plug back and forth, then it would shift.
Thread Starter
Rookie
Joined: May 2011
Posts: 84
Likes: 2
From: Hawaii
So turns out the it was just my battery. Lexus completely drained my battery when they were doing my airbag recall to the point where it wouldnt recharge. Luckily it was a new battery and under AAA warranty so I got it replaced for free. Been driving it for a bit over a week with no problems at all and no codes.
Thread
Thread Starter
Forum
Replies
Last Post
