P Codes – OBD2 Powertrain Codes

Learn all about the P2628 code, what causes O2 sensor pumping current trim circuit high, and how to diagnose and fix common issues to maintain optimal engine performance.

Learn all about the P2629 code, what causes O2 sensor pumping current trim circuit/open, and how to diagnose and fix common issues to maintain optimal engine performance.

Learn all about the P2630 code, what causes O2 sensor pumping current trim circuit low, and how to diagnose and fix common issues to maintain optimal engine performance.

Learn all about the P2631 code, what causes O2 sensor pumping current trim circuit high, and how to diagnose and fix common issues to maintain optimal engine performance.

Learn all about the P2632 code, what causes fuel pump "B" control circuit issues, and how to diagnose and fix common problems to maintain optimal engine performance.

Learn all about the P2633 code, what causes fuel pump "B" control circuit low, and how to diagnose and fix common issues to maintain optimal engine performance.

Learn all about the P2634 code, what causes fuel pump "B" control circuit high, and how to diagnose and fix common issues to maintain optimal engine performance.

Learn all about the P2635 code, what causes fuel pump 'A' low flow/performance, and how to diagnose and fix common issues to maintain optimal engine performance.

Learn all about the P2636 code, what causes fuel pump "B" low flow/performance, and how to diagnose and fix common issues to maintain optimal engine performance.

Learn all about the P2637 code, what causes torque management feedback signal issues, and how to diagnose and fix common problems to maintain optimal engine performance.