lamba sensor disco 2 v8

This site contains affiliate links for which LandyZone may be compensated if you make a purchase.
G

guinness

New Member
Posts
224
hi any body help have had the engine missing abit.
checked the spark plugs 1 bank running rich 1 bank lean.
how do you tell which lamba sensors have gone, with out putting on text book as mine has 4 senors on the exhaust.
starts ok but seems to be on and off.


thanks:mad:
 
it will be one of the sensors closest to the engine we replaced both it not hard and then atleast you know the other one wont go a mile down the road
 
In theory, and assuming the dreaded 14cux ECU, you could change the tune select resistor and disconnect the lamda sensors.

If the ECU thinks it doesn't have 'em it wont look for 'em. You can use a metal oxide 1 watt or ordinary 1/2watt resistor, for non-cat 3.9's the resistor has a value of 470 ohms.

Yours is likely to be between 3700 ohms and 4100 ohms, can be checked across pins 27 and 5 on the ecu multi plug. Or locate the resistor, should be taped to the ouside of the injection loom close to the ecu.
 
You must log in or register to reply here.

Similar threads

MAF Diver
Disco 2 Sharp exhaust smell, sooty O2 sensor, 0V/1.13V readings, lean/rich error codes, spray on ignition
Replies
3
Views
833
AllanWorms
AllanWorms
MAF Diver
Disco 2 Rough idle in a V8 D2a — tried MAF, O2, sparks, leads
2
Replies
35
Views
5K
marjon
marjon
Whatisthatmetric
Disco 1 D1 v8 Emissions, No ECU diag, and other mysteries
Replies
19
Views
2K
AllanWorms
AllanWorms
D
High Idle on Startup & O2 Monitor Not Setting – 2002 Discovery 2 w/ Secondary Air
Replies
0
Views
476
disco_nap
D
J
Disco 2 Disco 2 4.0 V8 Hard Cold Start
Replies
2
Views
2K
discool
discool
Back
Top