p0402 code
Thread Starter
built ford tough
Joined: Mar 2009
Posts: 326
Likes: 16
From: eastyork
p0402 code
hi guys, I have a 2006 f150 4.6L and have been having an issue with leaking injectors, I had my truck parked for a few weeks because ive heard some bad stories about driving the truck and having the motor hydro lock due to the leaking injector, the other day i changed all 8 injectors and now it starts when its warm with no issues, i just today got a p0402 code which is excessive exhuast flow, now the part number on the injectors were different then the ones that came out, i didnt think anything of it because i really need the truck for work so i was kind of excited just to get it running, could that cause this code? or do you guys think its just a coincidence , ive never changed the egr valve or anything either, truck has 110k (miles)
5 Year Member
Joined: Feb 2013
Posts: 430
Likes: 55
Had that code
hi guys, I have a 2006 f150 4.6L and have been having an issue with leaking injectors, I had my truck parked for a few weeks because ive heard some bad stories about driving the truck and having the motor hydro lock due to the leaking injector, the other day i changed all 8 injectors and now it starts when its warm with no issues, i just today got a p0402 code which is excessive exhuast flow, now the part number on the injectors were different then the ones that came out, i didnt think anything of it because i really need the truck for work so i was kind of excited just to get it running, could that cause this code? or do you guys think its just a coincidence , ive never changed the egr valve or anything either, truck has 110k (miles)
and changed the O2 sensors on each side front and back and the code went away.
Member
Joined: Sep 2014
Posts: 73
Likes: 3
From: ypsilanti MI
hi guys, I have a 2006 f150 4.6L and have been having an issue with leaking injectors, I had my truck parked for a few weeks because ive heard some bad stories about driving the truck and having the motor hydro lock due to the leaking injector, the other day i changed all 8 injectors and now it starts when its warm with no issues, i just today got a p0402 code which is excessive exhuast flow, now the part number on the injectors were different then the ones that came out, i didnt think anything of it because i really need the truck for work so i was kind of excited just to get it running, could that cause this code? or do you guys think its just a coincidence , ive never changed the egr valve or anything either, truck has 110k (miles)