SD Tune w/out Running a VSS
depends which model/year. The newer computers (e38/e67) have a speed component in their temperature estimator which gets used in SD calculations. but with the older stuff, there's no such thing.
The speed sensor also gets used as an 'idle detection', that's not directly related to SD, but that's in just about every computer I can think of. Not sure if that's just one of multiple ways to detect you're in idle fueling/spark tables, or the sole one. Experiment is in order I guess.
The speed sensor also gets used as an 'idle detection', that's not directly related to SD, but that's in just about every computer I can think of. Not sure if that's just one of multiple ways to detect you're in idle fueling/spark tables, or the sole one. Experiment is in order I guess.
It shouldn't hurt anything on your year.
There is just one limiter for RPM that you will have to raise. It is one Just for VSS failure. Simple fix.
You might have to do some extra tweaking on the airflow tables however, as you wont have a working Throttle cracker table vs speed.
There is just one limiter for RPM that you will have to raise. It is one Just for VSS failure. Simple fix.
You might have to do some extra tweaking on the airflow tables however, as you wont have a working Throttle cracker table vs speed.
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It shouldn't hurt anything on your year.
There is just one limiter for RPM that you will have to raise. It is one Just for VSS failure. Simple fix.
You might have to do some extra tweaking on the airflow tables however, as you wont have a working Throttle cracker table vs speed.
There is just one limiter for RPM that you will have to raise. It is one Just for VSS failure. Simple fix.
You might have to do some extra tweaking on the airflow tables however, as you wont have a working Throttle cracker table vs speed.
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Decell will not work properly. I have done it about three weeks ago. I have a 6 spd car and left off the gas for a few seconds and push the clutch in car would just drop past 950rpms and die. That was The pony issue I have found, after plugging up vss no changes in une the car would respond correctly in decell hope that helps
Decell will not work properly. I have done it about three weeks ago. I have a 6 spd car and left off the gas for a few seconds and push the clutch in car would just drop past 950rpms and die. That was The pony issue I have found, after plugging up vss no changes in une the car would respond correctly in decell hope that helps
