P1148 p1146
#1
P1148 p1146
Guys,
These codes popped up, I cleeared them, They came right back, drove it two more weeks, cleared them ,added Seafoam 1/2 can to gas tank & 1/2 to crankcase, put in another tank of gas. It has not repeated yet.
I know there can be several random causes, What I would like to know from someone who is real knowledgeable about these, what inputs or outputs can I measure with my meter next time so I can try to see what may be most likely cause?
These codes popped up, I cleeared them, They came right back, drove it two more weeks, cleared them ,added Seafoam 1/2 can to gas tank & 1/2 to crankcase, put in another tank of gas. It has not repeated yet.
I know there can be several random causes, What I would like to know from someone who is real knowledgeable about these, what inputs or outputs can I measure with my meter next time so I can try to see what may be most likely cause?
#2
#3
#4
I don't know what you could look at as far as determining if they've failed or not. I just took a leap of faith because the search I did indicated that I had a bad air fuel mixture and people told me it was due to bad upstream sensors. I went cheap and got the generics and ill be back under there at some point replacing them this summer because they're crap compared to the OEM's. If you can afford them (they're pricey) at least get the OEM's for the up stream.
#5
The Land Rover Code list I have doesn't even list those.
A search of Google shows them meaning different things for different cars.
P1146
Land Rover: Lambda trim post-catalyst bank 1.Short circuit to V Batt
P1148
Land Rover: Lambda trim post-catalyst bank 1.Short circuit to ground
If those are correct I'd check the wiring to make sure it's not damaged. If it's good then go ahead and replace your sensors since you say you're past due.
Amazon has been the cheapest on them for a while.
I think I had an 1148 last year and replacing the sensor fixed it.
A search of Google shows them meaning different things for different cars.
P1146
Land Rover: Lambda trim post-catalyst bank 1.Short circuit to V Batt
P1148
Land Rover: Lambda trim post-catalyst bank 1.Short circuit to ground
If those are correct I'd check the wiring to make sure it's not damaged. If it's good then go ahead and replace your sensors since you say you're past due.
Amazon has been the cheapest on them for a while.
I think I had an 1148 last year and replacing the sensor fixed it.