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2001 GMC Yukon XL 1500 Denali 6.0L Hesitation, MIL Lamp on, reduced engine power
Posted to GM Driveability on 8/19/2011 8 Replies

This roach came into the shop with a cel and reduced engine power light on. codes p1220 and p1221. another one of our techs replaced the tps on the throtle body 2 times. came back in with the same 2 codes and this time i drew the short straw and got to get my ...

8 Replies Received (View Replies)

  Related Documents & Media  2001 GMC Yukon XL 1500 Denali

 
Message Closed w/FIX

car Vehicle Data

2001 GMC Yukon XL 1500 Denali

VIN 3GKGK26G61
Engine6.0 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / sefi
EmissionsOBD-II Compliant
SymptomsHesitation, MIL Lamp on, Reduced Engine Power
OccursIntermittently

Trouble Codes

P1220TP Sensor 2 Circuit Malfunction
P1221TP Sensor 2 1-2 Correlation
Message Closed w/FIX

car Vehicle Data

2001 GMC Yukon XL 1500 Denali

VIN 3GKGK26G61
Engine6.0 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / sefi
EmissionsOBD-II Compliant
SymptomsHesitation, MIL Lamp on, Reduced Engine Power
OccursIntermittently

Trouble Codes

P1220TP Sensor 2 Circuit Malfunction
P1221TP Sensor 2 1-2 Correlation