New PCM Installed.
Thread Starter
Le Mans Master
Joined: Aug 2003
Posts: 9,298
Likes: 4
From: American Canyon Lethal Injection
New PCM Installed.
On my 1997 A4, after having a new PCM installed and re-flashed by the dealer with the stock tune, then it was dyno tuned. Afterwards I began to get the message "Service VEHICLE Soon" the code is 1281, the cause is Steering Sensor Uncorrelated Malfunction.
Never had this message before the PCM was replaced.
Tuner thinks it could be a faulty reading caused by the new PCM and will have to be re-flashed to delete it.
Has anyone else have this problem after a new PCM was installed?
Thanks,
SLPRC5
Never had this message before the PCM was replaced.
Tuner thinks it could be a faulty reading caused by the new PCM and will have to be re-flashed to delete it.
Has anyone else have this problem after a new PCM was installed?
Thanks,
SLPRC5
Thread Starter
Le Mans Master
Joined: Aug 2003
Posts: 9,298
Likes: 4
From: American Canyon Lethal Injection
Thanks for the input John....I think when the heads were installed they moved the steering rack out of the way to torque the front head bolts and must have moved the steering wheel and now causing the code to come up.
Team Owner
Joined: Mar 1999
Posts: 22,025
Likes: 192
From: At the beach in little Rhody
Before faulting the new PCM, you may want to verify the steering position. I think there was a procedure for doing that on here somewhere, you might be able to find it with a search. Not sure if it was Bill Curlee who put it together, I just remember seeing it as there have been a few that have run into this after a cam swap (not necessarily a PCM swap).
Le Mans Master
Joined: Jul 2002
Posts: 7,370
Likes: 8
From: Slave to the evil empire
Cruise-In V Veteran
St. Jude Donor '04
This is more than likely the cause, if the rack is disconnected from the steering shaft and the steering wheel is allowed to rotate then you'll get the fault, it will need to be resynched using a tech II. The PCM should have no affect on this.
Thread Starter
Le Mans Master
Joined: Aug 2003
Posts: 9,298
Likes: 4
From: American Canyon Lethal Injection
Thanks for your input. I found this out today. The installer told me to come and they will fix the problem by disconnection the steering shaft and rotating the steering wheel 180* and that will fix the problem.
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Thread Starter
Le Mans Master
Joined: Aug 2003
Posts: 9,298
Likes: 4
From: American Canyon Lethal Injection
Before faulting the new PCM, you may want to verify the steering position. I think there was a procedure for doing that on here somewhere, you might be able to find it with a search. Not sure if it was Bill Curlee who put it together, I just remember seeing it as there have been a few that have run into this after a cam swap (not necessarily a PCM swap).
I also was told that the voltage reading at the sensor connection should read 2.5 and if lower then go through the procedure of rotating the steering wheel until it reads 2.5 or close to it. Tie the steering wheel down then check the front tires to see if they are straight, if they are not then disconnect the steering shaft bolt and straighten the wheels then tighten the bolt and this will correct the sensor position....
Thanks again for you valuble input...
Team Owner
Joined: Mar 1999
Posts: 22,025
Likes: 192
From: At the beach in little Rhody
One other note, if the steering wheel is off 180, I would think it would be upside down when driving. Also, I think the airbag wiring has limited movement, so if the steering wheel is off try not to turn the wheel all the way until you correct the situation, I believe it could damage the airbag wiring.
Someone please correct me if I am wrong on this.
Someone please correct me if I am wrong on this.
Le Mans Master
Joined: Jul 2002
Posts: 7,370
Likes: 8
From: Slave to the evil empire
Cruise-In V Veteran
St. Jude Donor '04
One other note, if the steering wheel is off 180, I would think it would be upside down when driving. Also, I think the airbag wiring has limited movement, so if the steering wheel is off try not to turn the wheel all the way until you correct the situation, I believe it could damage the airbag wiring.
Someone please correct me if I am wrong on this.
Someone please correct me if I am wrong on this.
