Mil light on ,code for system to rich,with freeze frame data of long term fuel trim -17% ,but presently running at -8%.
Cleared code ,light has gone but will obviously return next time he goes down the motorway again.
I replaced the oxygen sensor last year with a universal (i know ,false economy) and activity is very sluggish unless really hot and fast idleling,but so was the original but am ready to put a decent one on, but have also checked the map sensor which is a 5volt denso unit which will only reach 3 volts on Wot.
Idling is 1volt ,but with ignition on ,engine off voltage is a static 3 volts. Question is does anyone know if this particular sensor should reach 4.5volts ,or 3 volts max is the norm for wot. (part number 079800 5410 / 5v ps 4a ) .
Cheers
George
Looking forward to Santa leaving my new smoke machine under the Christmas tree