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International Automotive Technicians Network
1999 Porsche Boxster 2.5L MIL Lamp on
Posted to European Driveability on 4/28/2004 4 Replies

Hello Porsche techs. I have two 1999 Boxsters with the mil lamp on for p1128 & 1130 mfr ctrlled fuel and air metering. I have replaced the oil filler neck on both as suggested by the tsb related to these codes, but the codes come back after a 15-20 min. drive....

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  Related Documents & Media  1999 Porsche Boxster

 
Message Closed w/FIX

car Vehicle Data

1999 Porsche Boxster

VIN WPOCA2987X
Engine2.5 L / 6 cyl / GAS
Trans5-speed Standard
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways

Trouble Codes

P1128MAP Sensor Signal Lower Than Expected
P1130Oxygen Sensor (Bank 1 Sensor 1) Low Signal Variance
Message Closed w/FIX

car Vehicle Data

1999 Porsche Boxster

VIN WPOCA2987X
Engine2.5 L / 6 cyl / GAS
Trans5-speed Standard
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways

Trouble Codes

P1128MAP Sensor Signal Lower Than Expected
P1130Oxygen Sensor (Bank 1 Sensor 1) Low Signal Variance