Fault Family System: Powertrain (P-Codes) 18 SAE Codes

Cylinder Injection Pulse Performance

Diagnostic & Technical Explanation

Code P2B00 (Cylinder 1 Injection Pulse Performance) sets when the ECM compares a cylinder's commanded injection pulse against the combustion result (via crankshaft acceleration or ion sensing) and finds the pulse is not producing the expected torque contribution, whether reported per cylinder, as a cold-start-specific check, or as a system-wide performance flag. A partially clogged injector, sticking pintle, or an injector whose flow has drifted outside its learned compensation range are the common physical causes.

These 18 diagnostic trouble codes share one detection mechanism and one repair path, which is why MechanicDB groups them into a single authored fault family rather than repeating the same explanation 18 times.

Codes in this family (18)

Code	Definition	Repair coverage
P2B00	Cylinder 1 Injection Pulse Performance	4 ranked fixes
P2B01	Cylinder 2 Injection Pulse Performance	4 ranked fixes
P2B02	Cylinder 3 Injection Pulse Performance	4 ranked fixes
P2B03	Cylinder 4 Injection Pulse Performance	4 ranked fixes
P2B04	Cylinder 5 Injection Pulse Performance	4 ranked fixes
P2B05	Cylinder 6 Injection Pulse Performance	4 ranked fixes
P2B06	Cylinder 7 Injection Pulse Performance	4 ranked fixes
P2B07	Cylinder 8 Injection Pulse Performance	4 ranked fixes
P2B08	Cold Start Cylinder 1 Injection Pulse Performance	4 ranked fixes
P2B09	Cold Start Cylinder 2 Injection Pulse Performance	4 ranked fixes
P2B0A	Cold Start Cylinder 3 Injection Pulse Performance	4 ranked fixes
P2B0B	Cold Start Cylinder 4 Injection Pulse Performance	4 ranked fixes
P2B0C	Cold Start Cylinder 5 Injection Pulse Performance	4 ranked fixes
P2B0D	Cold Start Cylinder 6 Injection Pulse Performance	4 ranked fixes
P2B0E	Cold Start Cylinder 7 Injection Pulse Performance	4 ranked fixes
P2B0F	Cold Start Cylinder 8 Injection Pulse Performance	4 ranked fixes
P2B95	Cold Start Injection Pulse Performance	4 ranked fixes
P2B96	Injection Pulse Performance	4 ranked fixes

What this page does not show

This page publishes the fault mechanism and the code index. The licensed dataset adds, for every one of the 15,886 codes, the full authored repair set (56,729 procedures in total) with the fields deliberately withheld here:

Procedures 2..n after the first-listed procedure
Aftermarket parts cost ranges in USD (est_parts_cost_min/max_usd)
Professional labor-hour estimates (est_labor_hours)
Step-by-step diagnostic and repair instructions
Replacement-part mappings and catalog lookups
6,637 manufacturer-specific OEM codes across 32 makes ($149 tier)

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