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2001 Subaru Forester 2.5L Spark Knock
Posted to Asian Driveability on 5/7/2009 6 Replies

Spark knock when engine loaded at highway speed (customer says since new - his first visit with us). Starts and runs fine. Scan data normal (map,temp,airflow). Plugs are recent - one was loose. Ign. timing correct at idle. A new knock sensor seemed to correct ...

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  Related Documents & Media  2001 Subaru Forester

 
Message Closed w/Summary

car Vehicle Data

2001 Subaru Forester

VIN JF1SF65561
Engine2.5 L / 4 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsSpark Knock
OccursUnder Load, Cruise

Trouble Codes

P0420Catalyst Efficiency Below Threshold (Bank 1)
Message Closed w/Summary

car Vehicle Data

2001 Subaru Forester

VIN JF1SF65561
Engine2.5 L / 4 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsSpark Knock
OccursUnder Load, Cruise

Trouble Codes

P0420Catalyst Efficiency Below Threshold (Bank 1)