Discussion
I have a '96 500. Standard set up - no mods.
Has been running fine for the 2 years of ownership.
Today, whilst underway, it stalled. Maybe a coincidence, but simultaneously, the speedo stopped working, as did the odometer.
Ran the ecumate and it showed a fault code 48: stepper motor. Removed the stepper motor, which wasn't that sooty, so just swept residue away with terps. Also cleaned inside where stepper motors lives. Ecumate still says fault, so tightened idle screw per Bible. Also reset the stepper motor position back and forth via the ecumate. Ran ecumate again, and fault disappears.
Gave the car a short blast. Was fine for a while, then just before test drive over, she stalls again. Per ecumate, no faults.
When idling, she runs sweet, at about 900/950 rpm.
Ideas welcome!
Has been running fine for the 2 years of ownership.
Today, whilst underway, it stalled. Maybe a coincidence, but simultaneously, the speedo stopped working, as did the odometer.
Ran the ecumate and it showed a fault code 48: stepper motor. Removed the stepper motor, which wasn't that sooty, so just swept residue away with terps. Also cleaned inside where stepper motors lives. Ecumate still says fault, so tightened idle screw per Bible. Also reset the stepper motor position back and forth via the ecumate. Ran ecumate again, and fault disappears.
Gave the car a short blast. Was fine for a while, then just before test drive over, she stalls again. Per ecumate, no faults.
When idling, she runs sweet, at about 900/950 rpm.
Ideas welcome!
Thanks Andrew. Yes, a tad frustrating. It doesn't happen all the time as you say, but that doesn't stop you approaching a roundabout or junction, or coming to lights, dreading a stall and bump starting in 1st or 2nd gear!
Might go with having a feel around per Jez's description and go from there.
It doesn't help that the only other car in the house, a Golf GTi, has decided not to recognise the key, and now won't come out of the barrel; and a host of dash warning lights being displayed after the missus decided to drive over a storm drain! Two cars without ABS and ESP now!
Will re-post once I have hopefully sorted the issue!
Might go with having a feel around per Jez's description and go from there.
It doesn't help that the only other car in the house, a Golf GTi, has decided not to recognise the key, and now won't come out of the barrel; and a host of dash warning lights being displayed after the missus decided to drive over a storm drain! Two cars without ABS and ESP now!
Will re-post once I have hopefully sorted the issue!
Update as promised.
When I wrote the post, I was going to comment, more as humour than anything else, that coincidentally I had also that weekend spray dyed the carpets. Little did I know how this would come into play.
So, I put the rear end on axle stands. For the life of me, I couldn't find the speed sensor on the diff.
Took car to my V8 man. Luckily, he was prepared to come out to look, as it is Chinese New Year here.
Car on ramp and sensor was on top of diff. No wonder I couldn't see it whilst laying under the car. The sensor was totally gunked up. Solvent sprayed liberally, looking like new, quick test and ... Nothing.
Then cleaned cogs with a rag - not an easy job - need at least two more elbow joints. All shiny clean, quick test ... Nothing.
Got home, whilst gingerly approaching junctions and roundabouts. Ordered new sensor. Wallet £100 lighter. Noticed that on a photo of the sensor there is a connector on at the end of the lead.
Asked mechanic if he thought I could get my hands around exhaust system etc to play with existing connector. He says "the connector is in the cabin, under the centre console".
Brain skips back to spray dyeing. Erm, I removed the centre console. Did I disconnect the lead?
Two minutes with screwdriver, found that the connection has parted and, low and behold, all is well again.
Moral? Think of bloody everything you have done prior to an issue arising. However small or inconsequential it may seem!!!
When I wrote the post, I was going to comment, more as humour than anything else, that coincidentally I had also that weekend spray dyed the carpets. Little did I know how this would come into play.
So, I put the rear end on axle stands. For the life of me, I couldn't find the speed sensor on the diff.
Took car to my V8 man. Luckily, he was prepared to come out to look, as it is Chinese New Year here.
Car on ramp and sensor was on top of diff. No wonder I couldn't see it whilst laying under the car. The sensor was totally gunked up. Solvent sprayed liberally, looking like new, quick test and ... Nothing.
Then cleaned cogs with a rag - not an easy job - need at least two more elbow joints. All shiny clean, quick test ... Nothing.
Got home, whilst gingerly approaching junctions and roundabouts. Ordered new sensor. Wallet £100 lighter. Noticed that on a photo of the sensor there is a connector on at the end of the lead.
Asked mechanic if he thought I could get my hands around exhaust system etc to play with existing connector. He says "the connector is in the cabin, under the centre console".
Brain skips back to spray dyeing. Erm, I removed the centre console. Did I disconnect the lead?
Two minutes with screwdriver, found that the connection has parted and, low and behold, all is well again.
Moral? Think of bloody everything you have done prior to an issue arising. However small or inconsequential it may seem!!!
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