Engine stops at the stoplight or when decelerating to a stop
AudiWorld Member
Joined: Jan 2008
Posts: 215
Likes: 2
I've done it before on my 97, and it was not hard to do, but the wires/plug was not easy to do at all.
The one bolt was so easy it was child's play.
And the sensor was nearly 200.00 from the dealer, and the only place I could find it then. (I've seen it online for much less now.)
I found that attaching a string to the OLD PLUG/Wire and then pulling it down when you remove the sensor from under the car..
Then reverse the operation with the new sensor, just tie the plug to the string, and use it route the plug back up. (I used tape to secure the string, and "taper" the plug so it would not catch edges on stuff. you have to pull it up, and then remove the tape, and then plug in the plug, and THEN pull the sensor back down, secure the plug in the bracket, and THEN secure the sensor on the bellhousing.)
If you try to secure the sensor first, and then do the plug, it's a PITA with nearly no plug wire room at all.
Also the wire was secured by a tie that I just ended up breaking. I put a new zip tie on, and avoided the hot exhaust as much as possible, but the wire there is going to get hot no matter what you do, just keep it away from direct contact with the exhaust.
The one bolt was so easy it was child's play.
And the sensor was nearly 200.00 from the dealer, and the only place I could find it then. (I've seen it online for much less now.)
I found that attaching a string to the OLD PLUG/Wire and then pulling it down when you remove the sensor from under the car..
Then reverse the operation with the new sensor, just tie the plug to the string, and use it route the plug back up. (I used tape to secure the string, and "taper" the plug so it would not catch edges on stuff. you have to pull it up, and then remove the tape, and then plug in the plug, and THEN pull the sensor back down, secure the plug in the bracket, and THEN secure the sensor on the bellhousing.)
If you try to secure the sensor first, and then do the plug, it's a PITA with nearly no plug wire room at all.
Also the wire was secured by a tie that I just ended up breaking. I put a new zip tie on, and avoided the hot exhaust as much as possible, but the wire there is going to get hot no matter what you do, just keep it away from direct contact with the exhaust.
Thread Starter
AudiWorld Newcomer
Joined: Aug 2012
Posts: 9
Likes: 0
Done!
Hi all,
Thanks for all the tips. I managed yesterday to replace the sensor myself. It proved to be a very easy job, with some help from a friend to route the sensor in and out.
I parked the car with the front driver's side wheel on the curb (so I could get under the car), I removed the plastic cover and then I could see the sensor on the transmission. I removed the screw (very easy) and then the sensor and the metal gasket. The it took me about five minutes to try to remove it from bottom to top. I couldn't so I got a friend to go under the car and pull it while I was ditched my hand down near the engine and I had to get the grey plastic connector through a tight place, between the engine and a rubber tube. I had to feel the tube and manually push the connector between those two.
Then my friend easily pulled it out and gave me the new sensor's connector end and I got it to the top through the same route (always I had two wires attached to both the sensor and the connector ends in order not to loose the route).
So you need someone's help to get it out and back in, otherwise you may get very frustrated
I drove the car then and today and there were no engine stops. I also deleted the code (with the scanner from Autozone) and I will check it again in about one week to see if the code reappears.
Thanks for all the tips. I managed yesterday to replace the sensor myself. It proved to be a very easy job, with some help from a friend to route the sensor in and out.
I parked the car with the front driver's side wheel on the curb (so I could get under the car), I removed the plastic cover and then I could see the sensor on the transmission. I removed the screw (very easy) and then the sensor and the metal gasket. The it took me about five minutes to try to remove it from bottom to top. I couldn't so I got a friend to go under the car and pull it while I was ditched my hand down near the engine and I had to get the grey plastic connector through a tight place, between the engine and a rubber tube. I had to feel the tube and manually push the connector between those two.
Then my friend easily pulled it out and gave me the new sensor's connector end and I got it to the top through the same route (always I had two wires attached to both the sensor and the connector ends in order not to loose the route).
So you need someone's help to get it out and back in, otherwise you may get very frustrated
I drove the car then and today and there were no engine stops. I also deleted the code (with the scanner from Autozone) and I will check it again in about one week to see if the code reappears.
Audiworld Junior Member
Joined: Feb 2013
Posts: 19
Likes: 0
The engine speed sensor (crank pos sensor) is mounted on the driver's side bell housing of the trans. It reads directly off the starter cog wheel (flex plate attached to Torque convertor). It's held on with one allen bolt and has a thick coax type wire coming off it.
I've never changed one...fairly easy to get to. As I understand it, routing the wire properly to where it plugs to harness under the hood is the trickiest part...just trace the wire to the plug when you spot the sensor.
You should have gotten a check engine light. On your model, that light is a replaceable bulb in the cluster and they do burn out some times (LED in 2000 up D2's). It should always come on when you turn on the ignition, before starting engine...if not, the bulb's out.
I've never changed one...fairly easy to get to. As I understand it, routing the wire properly to where it plugs to harness under the hood is the trickiest part...just trace the wire to the plug when you spot the sensor.
You should have gotten a check engine light. On your model, that light is a replaceable bulb in the cluster and they do burn out some times (LED in 2000 up D2's). It should always come on when you turn on the ignition, before starting engine...if not, the bulb's out.
AudiWorld Super User
Joined: May 2010
Posts: 2,611
Likes: 11
From: East TN
silverd2, I got a question for you. On the picture above what is the arrow pointing to on top of the engine. I have a 200 Audi A8 and the code I keep getting is "Vehicle Speed Sensor Intermittent" I have already replaced the sensor down by the axle, but the car still randomly dies, and I still get the same code.
Audiworld Junior Member
Joined: Feb 2013
Posts: 19
Likes: 0
Well, I did find the plug in, unfortunately it doesn't seem like Audi wants you messing with them! I pulled of the O2 sensor plug, thinking it was the speed sensor plug by breaking the clip off of it (luckily it still plugs back in). I spent about 30 mins trying to pull the speed sensor plug off, but it doesn't look like there are any clips on it. So after about an hour of cursing trying to pull two plastic plugs off, I am about at the end of my rope with this car. Anybody want to buy a slighty used 2000 Audi A8 that runs about 40% of the time?? Hahaha...
AudiWorld Super User
Joined: May 2010
Posts: 2,611
Likes: 11
From: East TN
Well, I did find the plug in, unfortunately it doesn't seem like Audi wants you messing with them! I pulled of the O2 sensor plug, thinking it was the speed sensor plug by breaking the clip off of it (luckily it still plugs back in). I spent about 30 mins trying to pull the speed sensor plug off, but it doesn't look like there are any clips on it. So after about an hour of cursing trying to pull two plastic plugs off, I am about at the end of my rope with this car. Anybody want to buy a slighty used 2000 Audi A8 that runs about 40% of the time?? Hahaha...
Thread
Thread Starter
Forum
Replies
Last Post
RafRaf
A4 (B6 Platform) Discussion
3
Nov 15, 2008 07:23 PM
