← Back to list

1992 Chevrolet Lesabre P1241 Error Code: Jerking, Poor Acceleration, Backfiring at High Throttle

Model: 92 Lesabre Fault Code: P1241 Posted: 2017-07-13 20:18

My 1992 Chevrolet Lesabre is experiencing severe acceleration issues. The vehicle jerks and fails to accelerate properly at full throttle, with symptoms worsening over time. After driving more than 60 minutes, the problem occurs regardless of throttle input—resulting in backfiring and engine stalling. The car becomes drivable again after cooling down, suggesting a thermal or intermittent fault. I've received a P1241 diagnostic code from an OBD1 system. Can anyone confirm this is a known issue for 1992 Lesabres? What steps should I take to diagnose and fix the problem?

Related fault codes
P1241
Comments (5)
Anonymous 2017-07-14 07:36

Please confirm this is a 1992 model year vehicle. The 1992 Lesabre used OBD1, so please provide the 8th character of your VIN for accurate system identification. Also, verify that you are seeing code P1241 and not a different code. What type of scanner did you use to retrieve this code?

Anonymous 2017-07-19 19:16

I used a paperclip to manually extract the diagnostic trouble code from the OBD1 system.

Anonymous 2017-07-20 07:37

the system reports 2 digit codes and no alpha character. suggest you Google "gm obd1 codes youtube"

Anonymous 2017-07-29 15:12

The trouble code reported is actually 41, not P1241. This is important to clarify as it affects the diagnosis.

Anonymous 2017-07-29 16:01

Code 41 refers to a CMP (Camshaft Position) sensor signal issue. The CMP sensor is located behind and below the water pump. Before replacing the sensor, carefully inspect the wiring harness and connector for damage or corrosion.