Silent2g
20+ Year Contributor
- 490
- 0
- Feb 10, 2002
talking with one of the local dsm guys who has a moderately built 1g tsi.
regrounding the o2 sensor
on the drivers side of the fire wall. the bunch of wires grounded to the firewall.
he ran a wire from there to the grounding are of the ecu. changed his pms maps by 5-6%.
did the same on mine tonight
idles a lot smoother. not hunting as much to stay at 14.7 stoichmetric.
being that the o2 and ecu are now grounded in the same area {not two different area's} its getting a more accurate reading as to what exactly is going on. its letting the ecu control the fuel the way it wants too instead of hunting. reacting faster as well.
just some food for thought.
BTW this was done on my 90 tsi and his 91 tsi.
regrounding the o2 sensor
on the drivers side of the fire wall. the bunch of wires grounded to the firewall.
he ran a wire from there to the grounding are of the ecu. changed his pms maps by 5-6%.
did the same on mine tonight
idles a lot smoother. not hunting as much to stay at 14.7 stoichmetric.
being that the o2 and ecu are now grounded in the same area {not two different area's} its getting a more accurate reading as to what exactly is going on. its letting the ecu control the fuel the way it wants too instead of hunting. reacting faster as well.
just some food for thought.
BTW this was done on my 90 tsi and his 91 tsi.
