ok i have this code coming up: P1131 - Lack of Upstream Heated Oxygen Sensor Switch - Sensor Indicates Lean - Bank No. 1
when driving the car it has these little surges of power (aka it bucks) under normal driving.. say im driving at a steady 40mph, the car will just buck out of nowhere.. it does it sometimes under throttle..
i had this problem a while back when my cai came loose but right now i have checked, double checked, and checked again and it's 100% tight... this all started after the header install...
now, the only reason i call on hotcobra03 is this :
For DTC P0171, P0172, P0174, P0175, P1131, P1132, P1151, P1152, P1130, P1150, P2195, P2196, P2197 or P2198 : GO to H42 (or GO to HA42 for natural gas vehicles only). For driveability symptoms without DTCs : RETURN to Section 3 , Symptom Charts for further diagnosis. KEY OFF. GO to DC26 .
DC26 CHECK TO ISOLATE MAF SENSOR FROM LEAN DRIVEABILITY OCCURENCE
Note: Due to increasingly stringent emission/OBD II requirements, a fuel system DTC on some vehicles will be generated without a noticeable driveability concern with or without the MAF sensor disconnected. Under these conditions, if the BARO, LONGFT1, LONGFT2 and MAF V PID indicates a MAF sensor concern, replace the MAF sensor.
Disconnect the MAF sensor.
Key on, engine running.
Drive the vehicle.
Is the lean driveability symptom (lack of power, spark knock/detonation, buck/jerk or hesitation/surge on acceleration) gone?
this was from one of your discs and that last part explains what it is doing while driving the car..
what could this be?
Also, we found this just dangleing around in the engine bay.. it's coming out of the wiring harness to the injectors and i cant find anything it plugs into...it is extra or something or am i just missing its connector?
and a small note, the header install and everything was done back in april and this is the first day ive seen the car since may when i dropped it off to be refixed (long story) and my parents picked the car up and have only driven it a bout once a week and said the surging/bucking has been going on since they picke up the car...so ive really had no seat time in it other than just afew hours today and i really need to figure thiso ut cause i have a 10 hour drive tomorrow.. thanks for any help guys and sory for the long post
when driving the car it has these little surges of power (aka it bucks) under normal driving.. say im driving at a steady 40mph, the car will just buck out of nowhere.. it does it sometimes under throttle..
i had this problem a while back when my cai came loose but right now i have checked, double checked, and checked again and it's 100% tight... this all started after the header install...
now, the only reason i call on hotcobra03 is this :
For DTC P0171, P0172, P0174, P0175, P1131, P1132, P1151, P1152, P1130, P1150, P2195, P2196, P2197 or P2198 : GO to H42 (or GO to HA42 for natural gas vehicles only). For driveability symptoms without DTCs : RETURN to Section 3 , Symptom Charts for further diagnosis. KEY OFF. GO to DC26 .
DC26 CHECK TO ISOLATE MAF SENSOR FROM LEAN DRIVEABILITY OCCURENCE
Note: Due to increasingly stringent emission/OBD II requirements, a fuel system DTC on some vehicles will be generated without a noticeable driveability concern with or without the MAF sensor disconnected. Under these conditions, if the BARO, LONGFT1, LONGFT2 and MAF V PID indicates a MAF sensor concern, replace the MAF sensor.
Disconnect the MAF sensor.
Key on, engine running.
Drive the vehicle.
Is the lean driveability symptom (lack of power, spark knock/detonation, buck/jerk or hesitation/surge on acceleration) gone?
this was from one of your discs and that last part explains what it is doing while driving the car..
what could this be?
Also, we found this just dangleing around in the engine bay.. it's coming out of the wiring harness to the injectors and i cant find anything it plugs into...it is extra or something or am i just missing its connector?
and a small note, the header install and everything was done back in april and this is the first day ive seen the car since may when i dropped it off to be refixed (long story) and my parents picked the car up and have only driven it a bout once a week and said the surging/bucking has been going on since they picke up the car...so ive really had no seat time in it other than just afew hours today and i really need to figure thiso ut cause i have a 10 hour drive tomorrow.. thanks for any help guys and sory for the long post