hi i posted fault with my v6 grand voyager 53 reg petrol
my car triggered fault codes p0134 p0171
replaced upstream 02 sensor but also replaced downstream at same time
took my car to autoelectrican after 2 separate diagnoses were made one said faulty sensor one said wiring fault so replaced sensor problem still arose so finally after saving some money took to autoelectrican
originally he couldnt find fault but while testing my fault appeared
he had to strip entire near side of engine bay which included taking out battery egr valve to get to loom that runs across gearbox to ecu
the fault was intermittant where the 2 earth wires from both 02 sensors meet in the loom the upstream one had the fault the guy ran a wire from upstream o2 earth wire to chassis just under ecu this fixed fault
my car now runs fantastic mpg up as well
just thought update you all with outcome
symptoms i had were running rich and sometimes loss power when accerating
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tomada3
hi i posted fault with my v6 grand voyager 53 reg petrol
my car triggered fault codes p0134 p0171
replaced upstream 02 sensor but also replaced downstream at same time
took my car to autoelectrican after 2 separate diagnoses were made one said faulty sensor one said wiring fault so replaced sensor problem still arose so finally after saving some money took to autoelectrican
originally he couldnt find fault but while testing my fault appeared
he had to strip entire near side of engine bay which included taking out battery egr valve to get to loom that runs across gearbox to ecu
the fault was intermittant where the 2 earth wires from both 02 sensors meet in the loom the upstream one had the fault the guy ran a wire from upstream o2 earth wire to chassis just under ecu this fixed fault
my car now runs fantastic mpg up as well
just thought update you all with outcome
symptoms i had were running rich and sometimes loss power when accerating
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