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-   Discovery II (https://landroverforums.com/forum/discovery-ii-18/)
-   -   knock sensors (https://landroverforums.com/forum/discovery-ii-18/knock-sensors-69815/)

krammark Oct 19, 2014 12:48 PM

knock sensors
 
2003 Discovery 4.6L with SAI
I recently fixed my cyl 4&7 misfire problem which was a cracked coilpack and bad ECU and then cleared codes. Had no SES so took it in for inspection. I failed inspection for "code readiness" so I started to put on some mileage. I estimate at about 10 miles my SES light came on and stayed on.

Codes read by Hawkeye are:
P0130 10 o2 probe pre-cat value not plausible, fault present and intermittent
P0171 26 Fuel adaptation ti Multiplicative Max Value exceeded Fault present and intermittent
P0327 210 Knock Sensor Bank 1 min value not reached Fault Not Present and Static
P0171 27 Fuel adaptation ti Multiplicative Max Value exceeded Fault present and intermittent

codes read by Actron autoscanner plus:
P0130 confirmed
P0171 bank 1 too lean, pending
P0327 Knock Sensor circuit too low bank 1, pending
P1171 pending



Should I be looking for a problem at this point or do I need to put more mileage on to let the adaptations adapt?
Should I reset the codes and put on the miles to see if codes return?
Should I reset adaptations?

Truck runs great.

drowssap Oct 19, 2014 12:59 PM

personally if I didn't know how long they had been in there, I would clear them and see what comes back

krammark Oct 19, 2014 01:22 PM

OK.
How about resetting adaptations too? I know nothing about what happens when you reset adaptations but I'm wondering if the fact that the truck had two dead cylinders that would screw up adaptations. Should I leave the adaptations alone? I have a hawkeye tool and I never reset adaptations so I don't know what to expect if I did reset them.

MetalMarine Oct 19, 2014 01:30 PM

when you clear emission codes for an inspection. the system has to show that it's been drivin so many miles after a reset before it will pass an inspection. could be 50 miles or even 75. probably depends on your area.


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