D1 High Idle issue. (Yet Another)
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Drifting
Joined: Dec 2015
Posts: 48
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1. disconnect battery
2. swap ECMS
3. reconnect battery
4. push hood alarm switch. (then keep hood open while trying to start engine)?
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Drifting
Joined: Dec 2015
Posts: 48
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My guess is the hood alarm switch is only used to set off the car alarm when it's activated (via key remote for example)
Baja
Joined: Mar 2009
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From: south n.j. and ne va.
Yes, with engine running. That doesn't seem right does it? I know there is several values coming from the odb2 readings that don't make since and perhaps it's because this is a early year for adopting odb2 standards? So maybe they just didn't hook up all the sensors to show information, but i'm curious if anyone else has different number on their o2 readings? (and what year vehicle they have)
It's my understanding there is (2) o2 sensors near the exhaust headers and then (2) after the catalytic? So from my picture it's almost as if I'm only getting data from one of o2 sensors after the catalytic? Or am I wrong on thing this.
It's my understanding there is (2) o2 sensors near the exhaust headers and then (2) after the catalytic? So from my picture it's almost as if I'm only getting data from one of o2 sensors after the catalytic? Or am I wrong on thing this.
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Drifting
Joined: Dec 2015
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Ok. Now it runs and goes into closed loop after 30/40 seconds. But still having high idle issue (same as always).
And the O2 sensors are showing 0.0. From what I read the first (2) O2 sensors are really the ones that the computer uses to adjust the air/fuel mixture. I'm doing some tests on them to see if they are outputting the right voltage (not using the odb2). From what I've read I should be seeing a change of voltage from around 0.2 to 0.8?
Kinda weird though that I'm not getting a CEL or any error codes for this though.
And the O2 sensors are showing 0.0. From what I read the first (2) O2 sensors are really the ones that the computer uses to adjust the air/fuel mixture. I'm doing some tests on them to see if they are outputting the right voltage (not using the odb2). From what I've read I should be seeing a change of voltage from around 0.2 to 0.8?
Kinda weird though that I'm not getting a CEL or any error codes for this though.
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Drifting
Joined: Dec 2015
Posts: 48
Likes: 1
Fixed the issue. I order a idle control valve off eBay brand new for $9 shipped. and put that in for kicks. Also found a loose wire on a o2 sensor.
Now it idles as it should! Thanx to all for your help.
Now it idles as it should! Thanx to all for your help.
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Drifting
Joined: Dec 2015
Posts: 48
Likes: 1
I did notice that the idle control valve makes noise now like its moving. Where as before I didn't notice any noise. Or maybe it's just a louder stepper motor and I notice it.
Weird though that I'm still not seeing volts for O2 sensors on my odb2 port. still shows 0.0v when running. So maybe my O2 is bad. Which I started a new thread about it because of my bad gas milage.
here is the link to my new thread. https://landroverforums.com/forum/di...-mpg-d1-77646/
Weird though that I'm still not seeing volts for O2 sensors on my odb2 port. still shows 0.0v when running. So maybe my O2 is bad. Which I started a new thread about it because of my bad gas milage.
here is the link to my new thread. https://landroverforums.com/forum/di...-mpg-d1-77646/
Last edited by land44; Feb 7, 2016 at 11:01 PM.
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